Heating system

A heating system can include certain pressure sensitive features. These features can be configured to change from a first position to a second position based on a pressure of a fuel flowing into the feature. These features can include, fuel selector valves, pressure regulators, burner nozzles, and oxygen depletion sensor nozzles, among other features.

Process for treating and/or forming a non-newtonian fluid using microchannel process technology

The disclosed invention relates to a process, comprising: conducting unit operations in at least two process zones in a process microchannel to treat and/or form a non-Newtonian fluid, a different unit operation being conducted in each process zone; and applying an effective amount of shear stress to the non-Newtonian fluid to reduce the viscosity of the non-Newtonian fluid in each process zone, the average shear rate in one process zone differing from the average shear rate in another process zone by a factor of at least about 1.2.

Reduced gulp fluid reservoir

An assembly includes a reservoir for holding a fluid, and a scavenge passage connected to the reservoir at a reservoir inlet. The scavenge passage returns the fluid from a delivery location to the reservoir. A bleed passage is connected in fluid communication between the reservoir and the scavenge passage.

Pressure Relief Valve

A degassing valve in a flexible container is disclosed. The valve includes a generally flat valve seat on a truncated generally dome shaped structure, and the valve seat is raised a height above the valve chamber base surface. A resilient, non-perforated, non-spring-biased diaphragm is inter-engaged upon the valve seat and overlaps the valve seat outer periphery. The valve seat engages a central area of the diaphragm that is not proximate the perimeter of the diaphragm, and the dome shaped structure has a sectional radius greater than the diaphragm radius. A well is recessed into the valve seat in a direction away from the diaphragm by a depth less than the height of the valve seat above the valve chamber base surface.

Cassette system integrated apparatus

A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.

Pilot valve, method of using, and fluid system equipped therewith

A pilot valve assembly for regulating the output of a first pressure source relative to a second pressure source, a fluid system equipped with the valve assembly, and a method of operating the valve assembly. The valve assembly includes a valve body with inlet and outlet ports and first and second sensing ports. The first and second sensing ports are adapted to sense, respectively, the fluid pressures of the first and second pressure sources. The inlet port is adapted for fluidically connecting to the first pressure source. The valve assembly defines a flow path between the inlet and outlet ports, and has components for allowing fluid flow from the inlet port, through the flow path, and to the outlet port only if the fluid pressure of the first pressure source exceeds the fluid pressure of the second pressure source by a differential by the flow-allowing components.

Sampling and rejection device

A sampling and rejection device for a boiler or steam generating system is described. The sampling and rejection device receives the condensate or fluid and allows a volume of the condensate to liquefy or the fluid to build up in the interior of the sampling and rejection device. One or more conductivity, pH, and temperature sensors or probes are positioned in the sampling and rejection device to measure the condensate. The sampling and rejection device includes a collection vessel to hold and temporarily store the condensate. The sampling and rejection device includes an outlet or a return line (to a central boiler) and a drain line. If the sensor measures undesirable conductivity, pH, or temperature in the condensate in the collection vessel, then a valve to the drain line is opened and the condensate is rejected.

Direct metering fuel system with constant servo flow

A direct metering fuel supply system includes a fuel pump, a burn flow fuel line, a servo flow fuel line, and a servo regulator. The fuel pump is adapted receive pump commands representative of a commanded fuel flow rate and is configured, in response to the pump commands, to discharge fuel at the commanded fuel flow rate. The burn flow fuel line is in fluid communication with the pump to receive a first portion of the fuel discharged therefrom. The servo flow fuel line is in fluid communication with the pump to receive a second portion of the fuel discharged therefrom. The servo regulator is mounted on the servo flow fuel line and configured to maintain fuel flow rate in the servo flow fuel line at a substantially constant fuel flow rate regardless of fuel flow rate in the burn flow fuel line.

Gas supplying apparatus, cylinder cabinet provided with the same, valve box, and substrate process apparatus

A disclosed gas supplying apparatus includes a pressure controller that reduces a primary pressure thereby providing a secondary pressure greater than a process pressure at which a predetermined process is performed and less than the atmospheric pressure in a secondary pipe; a pressure sensor that measures a pressure in the secondary pipe; a first open/close valve provided in the secondary pipe; an open/close valve controller that opens or closes the first open/close valve; a pressure comparator that compares the pressure measured by the pressure sensor in the secondary pipe with a first set pressure that is greater than the process pressure by a predetermined pressure; and a controller that outputs a signal to the open/close valve controller thereby closing the first open/close valve, when the pressure comparator determines that the pressure in the secondary pipe is less than the first set pressure.

Vapor Delivery Device, Methods of Manufacture And Methods of Use Thereof

A method comprises transporting a first stream of a carrier gas to a delivery device that contains a solid precursor compound. The first stream of carrier gas is at a temperature greater than or equal to 20° C. The method further comprises transporting a second stream of the carrier gas to a point downstream of the delivery device. The first stream and the second stream are combined to form a third stream, such that the dewpoint of the vapor of the solid precursor compound in the third stream is lower than the ambient temperature. The flow direction of the first stream, the flow direction of the second stream and the flow direction of the third stream are unidirectional and are not opposed to each other.

Cassette system integrated apparatus

A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.

Gas concentration control device for pressure vessel

A gas concentration control device for pressure vessel is provided for controlling gas concentration inside an accommodation space that is set in an interior of a chamber formed inside a pressure vessel curing oven. The pressure vessel curing oven includes a gas inlet tube with a first valve and a gas outlet tube with a second valve, which are in communication with the accommodation space. The gas concentration control device includes a gas concentration detection device, which is operative for timed detection of concentration of a gas inside the accommodation space, and a control unit for setting a predetermined concentration, performing a judgment if the gas concentration inside the accommodation space reaches the predetermined concentration according to a detection result of the gas concentration detection device, and thereby controls the first valve and the second valve according to result of the judgment.

Pumping cassette

A pump cassette is disclosed. The pump cassette includes a housing having at least, one fluid inlet line and at least one fluid outlet line. The cassette also includes at least one reciprocating pressure displacement membrane pump within the housing. The pressure pump pumps a fluid from the fluid inlet line to the fluid outlet line. A hollow spike is also included on the housing as well as at least one metering pump The metering pump is fluidly connected to the hollow spike on the housing and to a metering pump fluid line. The metering pump fluid line is fluidly connected to the fluid outlet line.

Cold and hot water balancing valve structure

A cold and hot water balancing valve structure is provided which can fit common standard specifications. While maintaining the outer diameter and height of the high legged seat of the valve enclosure under existing standard specifications of ceramic valves, the bottom ends of the cold and hot water through holes of the high legged seat are configured with a water inlet pipe set housing groove for fitting an eccentrically positioned assembled water inlet pipe set, which are made up of cold and hot water tubes. When the meshing edges of the tubes are joined together, a balancing valve housing space is defined inside to hold a cold and hot water balancing valve unit. The cold and hot water balancing valve structure fits existing standard ceramic valve specifications, so as to dramatically reduce the production cost of cold-hot balancing valves while realizing the cold and hot water balancing function.

System and Method of Automatic Tank Refill

A fire truck operable to automatically refill a water tank comprises a first pressure transducer coupled to an intake inlet of the pump and operable to measure an intake pressure, a second pressure transducer coupled to a discharge outlet of the pump and operable to measure a discharge pressure, a first pump discharge pipe coupled between the discharge outlet of the pump and a fire hose, a second pump discharge pipe coupled between the discharge outlet of the pump and the water tank, a control valve disposed in the second pump discharge pipe, and a controller operable to automatically sense a low water level condition of the tank, and automatically control the engine speed, the pump speed, and the control valve so that adequate water supply to the fire hose via the first pump discharge pipe is automatically maintained while automatically refilling the water tank via the second pump discharge pipe.

Compact turbomachine system with improved slug flow handling

A turbomachine system and method, with the system including a slug detector coupled to a main line to detect a slug flow in a multiphase fluid in the main line. The system also includes a compressor fluidly coupled to the main line and disposed downstream of the slug detector, and a bypass line fluidly coupled to the main line upstream of the compressor and downstream of the compressor. The system further includes at least an upstream control valve fluidly coupled to the main line upstream of the compressor and communicably coupled to the slug detector. The upstream control valve is configured to actuate between a normal position, in which the upstream control valve directs fluid to the compressor, and a bypass position, in which the upstream control valve directs fluid to the bypass line, according to when the slug detector detects a slug flow.

Optical probe containing oxygen, temperature, and pressure sensors and monitoring and control systems containing the same

A probe for measuring oxygen, temperature, and pressure in a space to be monitored, comprising: a housing, comprising a thermally conductive material; an oxygen sensor disposed within the housing, comprising: a first end having coated thereon a coating which fluoresces at a fluorescent frequency when exposed to light having an excitation frequency in the absence of associated oxygen, and which undergoes a dampening of said fluorescence in the presence of associated oxygen; and a second end operatively connected to an optical fiber that extends through the housing; wherein the first end extends through the housing and is adapted to be exposed to the space to be monitored; a temperature sensor disposed within the housing adjacent to the thermally conductive material, comprising a fiber Bragg grating, or a semiconductor material, such as a GaAS material, wherein the temperature sensor does not extend through the housing and is not exposed to the space to be monitored; a pressure sensor disposed within the housing, comprising a fiber Bragg grating or a Fabry-Pérot white light interferometry sensor having a first end which extends through the housing and is adapted to be exposed to the space to be monitored.

N-channel flow ratio controller calibration

Embodiments of the present invention generally relate to methods of controlling gas flow in etching chambers. The methods generally include splitting a single process gas supply source into multiple inputs of separate process chambers, such that each chamber processes substrates under uniform processing conditions. The method generally includes using a mass flow controller as a reference for calibrating a flow ratio controller. A span correction factor may be determined to account for the difference between the actual flow and the measured flow through the flow ratio controller. The span correction factors may be used to determine corrected set points for each channel of the flow controller using equations provided herein. Furthermore, the set points of the flow ratio controller may be made gas-independent using additional equations provided herein.

Fuel metering system

A fuel metering system includes a bypass valve configured to receive a fuel flow under a pressure P 1 , a pressure regulating valve in fluid communication with the bypass valve and configured to receive a fuel flow under a pressure P Q , a metering valve in fluid communication with the bypass valve and the pressure regulating valve, and configured to receive the fuel flow under the pressure P 1 and to output a fuel flow under a pressure P 2 , a single stage servo valve in fluid communication with the bypass valve, the pressure regulating valve and the metering valve, and configured to receive the fuel flow under the pressure P 1 , and to output the fuel flow under the pressure P Q , and to output a fuel flow under a pressure P M , and a linear variable differential transformer coupled to the metering valve.

Fluid Flow Management Through a Wastewater Level Manipulation System and Associated Methods

A system is provided to control fluid flow in a wastewater treatment system through wastewater level manipulation. The wastewater treatment system may include a wastewater treatment plant connected to a plurality of pump stations by a main. Each of the plurality of pump stations may include a wet well with a pump therein. The system may include a central server in communication with a sensor to sense a level of wastewater within the wet well. The pump may be automatically moved to an on position when the level of the wastewater in the wet well is at or above a first level and may be automatically moved to an off position when the level of the wastewater in the respective wet well is at or below a pump cutoff level. The central server may systematically manipulate the first level to selectively set the level of wastewater within the wet well.

Ebb and flow watering system

A method is provided for controlling the fluid level in an ebb and flow watering system control bucket that is in fluid communication with at least one fluid holding apparatus such as a plant container with connecting water lines, causing hydraulic delays in changes in the fluid level in the control bucket when fluid is pumped to or from the control bucket, typically from a fluid reservoir. The method involves pumping fluid to or from the control bucket to achieve a target fluid level in the control bucket; upon the fluid reaching the target fluid level, starting a timer for a short period of time to allow for the hydraulic delays, and continuing to pump fluid while the timer runs; restarting the timer and continuing to pump fluid if the fluid level in the control bucket recedes from the target fluid level; and discontinuing pumping if the timer runs for the full period of time.

Apparatus and method for flow equipartition

Apparatus for equipartition of the flow between a first line ( 1 ) for feeding gas and a second line ( 2 ) for feeding gas, in a pressure adjusting system, comprising a first control unit ( 8 ) of a first adjusting device ( 4 ) for adjusting the pressure of the first line ( 1 ) to a first predetermined pressure (P 1 ), a second control unlit ( 19 ) of a second adjusting device ( 6 ) for adjusting the pressure of the second line ( 2 ) to a second predetermined pressure (P 2 ), a pneumatic conduit ( 19 ) for connecting between the first control unit ( 8 ) and the second adjusting device ( 6 ) for adjusting the pressure of the second line ( 2 ) to the first predetermined pressure (P 1 ), and a pneumatic switch ( 20 ) for interrupting the pneumatic connection for adjusting the pressure of the second line ( 2 ) to the second predetermined pressure (P 2 ).

Valve retaining cup

A valve including a valve housing, a casing, a spring guide, and a retaining cup. The casing may be disposed within the valve housing and may include a bore. The spring guide may be disposed within the bore and the retaining cup may be disposed partially around the casing to engage and retain the spring guide at least partially within the bore of the casing.

Downhole Fluid Control System

A fluid flow control device serving as an inflow port from a fluid reservoir (R) to the interior of a production pipe (S) is in the form of a housing (). The housing has a primary flow path () and a secondary flow path (). The secondary flow path is in fluid communication with a chamber (B) in which is arranged an actuator () for a valve device (), the valve device arranged to open and close the primary flow path. At least one flow restrictor () is arranged in the secondary flow path, the flow restrictor arranged to provide a pressure to chamber (B) sufficient to actuate the valve to an open position when the fluid flowing through the secondary flow path is oil, and a pressure sufficient to actuate the valve to a closed position when the fluid has a viscosity and/or density less than oil. 1. A downhole fluid flow control system comprising:a fluid control module having an upstream side and a downstream side, the fluid control module including a main fluid pathway in parallel with a secondary fluid pathway each extending between the upstream and downstream sides;a valve element disposed within the fluid control module, the valve element operable between an open position wherein fluid flow through the main fluid pathway is allowed and a closed position wherein fluid flow through the main fluid pathway is prevented;a viscosity discriminator disposed within the fluid control module, the viscosity discriminator having a viscosity sensitive channel that forms at least a portion of the secondary fluid pathway; anda differential pressure switch operable to shift the valve element between the open and closed positions, the differential pressure switch including a first pressure signal from the upstream side, a second pressure signal from the downstream side and a third pressure signal from the secondary fluid pathway, the first and second pressure signals biasing the valve element toward the open position, the third pressure signal biasing the valve element toward the closed ...

Fluid Dose Dispensing Apparatus

An apparatus for dosing a fluid flow system with treatment fluid/chemicals is described. The apparatus includes a vessel; an inlet pipe or hose and an outlet pipe for coupling to the system so that fluid from the system may flow into the vessel and return into the system to flush chemicals from within the vessel and into the system. The vessel has a piston within it and the vessel wall defines a cylinder in which the piston moves under pressure of incoming fluid from a first position at which the vessel contains fluid to be dispensed into the system to a second position corresponding to substantially complete emptying of the vessel. The piston has a bypass passage through or around it that opens when the piston substantially reaches the second position so that fluid from the system may flow passed the piston when the piston is at the second position.

VAPOR DELIVERY DEVICE, METHODS OF MANUFACTURE AND METHODS OF USE THEREOF

A method comprises transporting a first stream of a carrier gas to a delivery device that contains a liquid precursor compound. The method further comprises transporting a second stream of the carrier gas to a point downstream of the delivery device. The first stream after emanating from the delivery device and the second stream are combined to form a third stream, such that the dew point of the vapor of the liquid precursor compound in the third stream is lower than the temperature of the plumbing that transports the vapor to a CVD reactor or a plurality of CVD reactors. The flow direction of the first stream, the flow direction of the second stream and the flow direction of the third stream are unidirectional and are not opposed to each other. 1. A method comprising:transporting a first stream of a carrier gas to a delivery device; the delivery device containing a liquid precursor compound; the first stream of carrier gas being at a temperature greater than or equal to 20° C.; where the liquid precursor compound is in a liquid state in the delivery device;transporting a second stream of the carrier gas to a point downstream of the delivery device; wherein a flow direction of the first stream and a flow direction of the second stream are not opposed to each other; andcombining the first stream after emanating from the delivery device and the second stream to form a third stream;where a dew point of a vapor of the liquid precursor compound in the third stream is lower than an ambient temperature.2. The method of claim 1 , further comprising transmitting a signal from a physical-chemical sensor that is disposed in the third stream to a first pressure/flow regulator and/or a second pressure/flow regulator claim 1 , where the first pressure/flow regulator is operative to control a flow rate of a carrier gas in the first stream claim 1 , and where the second pressure/flow regulator is operative to control a flow rate of a carrier gas in the second stream.3. A delivery ...

Bypass and pressure adjustment valve

A bypass valve, comprising: a main conduit ( 10 ), comprising a first section ( 11 ) and a second section ( 12 ); a mobile control shutter ( 21 ); a bypass conduit ( 30 ) which places the main conduit ( 10 ) in communication with a discharge opening; a control element ( 31 ), mobile between a closed position, at which it closes the bypass conduit ( 30 ), and an open position, at which it opens the bypass conduit; a throttle element ( 40 ), interposed between the first section ( 11 ) and the second section ( 12 ), structured to produce a load loss which depends on the fluid flow rate in transit along the main conduit ( 10 ). The control element ( 31 ) is tubular-shaped and defines internally a section of the bypass conduit ( 30 ). The control element ( 31 ) is slidable along a housing ( 32 ) provided with a sealing seat ( 33 ). A passageway ( 34 ) is predisposed between the control element ( 31 ) and the housing ( 32 ) which places the first section ( 11 ) in communication with the second section ( 12 );

PUMPING CASSETTE

A pumping cassette including a housing having at least two inlet fluid lines and at least two outlet fluid lines. At least one balancing pod within the housing and in fluid connection with the fluid paths. The balancing pod balances the flow of a first fluid and the flow of a second fluid such that the volume of the first fluid equals the volume of the second fluid. The balancing pod also includes a membrane that forms two balancing chambers. Also included in the cassette is at least two reciprocating pressure displacement membrane pumps. The pumps are within the housing and they pump the fluid from a fluid inlet to a fluid outlet line and pump the second fluid from a fluid inlet to a fluid outlet. 1. (canceled)2. A fluid-balancing cassette comprising:a first and a second fluid-balancing pod, each chamber pod having a first port separated from an opposing second port by a flexible membrane, the flexible membrane dividing the fluid-balancing pod into variable volume first and second chambers, wherein a total fluid volume of the fluid-balancing chamber pod is a sum of the volumes of the first and second chambers;a first and a second diaphragm pump, an outlet of the first diaphragm pump having a valved connection to the second port of the first fluid-balancing pod and an outlet of the second diaphragm pump having a valved connection to the second port of the second fluid-balancing pod, wherein a full stroke volume of each diaphragm pump matches the total fluid volume of the fluid-balancing pod to which it is connected;a first fluid flowpath connecting a first inlet of the cassette to a first outlet of the cassette, wherein the first fluid flowpath has separate valved connections to the first port of the first fluid-balancing pod and to the first port of the second fluid-balancing pod; anda second fluid flowpath connecting a second inlet of the cassette to a second outlet of the cassette, wherein the second fluid flowpath has separate valved connections to an inlet of ...

SAFETY VALVE FOR A DAIRY SYSTEM COMPONENT

A system for cleaning a dairy animal milker unit and applying dip to a dairy animal, the system includes a main control, an air supply, a water supply, a backflush fluid supply, a dip supply, a stall control for receiving the air, water, backflush fluid and dip supplies, and a safety valve that is adjacent to a downstream portion of the milker unit to control backflush and dip fluids being fed to the milker unit. 1. A safety valve for a dairy system component , the safety valve comprising: a first valve seat,', 'a second valve seat, and', 'a third valve seat; and, 'a cup defininga valve piston slidably disposed at least partially in the cup to move the safety valve between: a closed position, in which the first valve seat and the second valve seat are closed, and the third valve seat is open to a vent; and an open position, in which the first valve seat and the second valve seat are open to a fluid flow channel between the first valve seat and the second valve seat, and the third valve seat is closed to the vent.2. The safety valve of claim 1 , wherein the first valve seat and the second valve seat are at least partially defined by openings in a closed end of the cup claim 1 , and the third valve seat is at least partially defined by an open end portion of the cup.3. The safety valve of claim 1 , wherein:the valve piston includes a first valve head disposed to engage the first valve seat when the safety valve is in the closed position, a second valve head disposed to engage the second valve seat when the safety valve is in the closed position, and a third valve surface spaced apart from the third valve seat when the third valve seat is open to the vent.4. The safety valve of claim 1 , wherein:the third valve seat is at least partially defined by an interior surface of the cup.5. The safety valve of claim 1 , wherein:the cup includes a closed end defining the first valve seat and the second valve seat, and an open end portion defining at least a portion of the third ...

JOINT CONNECTOR

A ball joint connector is provided for linking a showerhead to a water supply pipe. The connector has an internal venturi that draws air into the connector to aerate water being provided to the showerhead. A flow control member is disposed in a fluid pathway connected to the venturi, preventing spraying or leaking out of the air inlet, while reducing noise associated with the air induction. 1. (canceled)2. A showerhead assembly comprising: an inlet configured to receive water from a water supply line;', 'a passageway fluidly connecting the inlet and an outlet, the passageway having a venturi throat;', 'a flat surface recessed inwardly from an annular outer surface such that opposite side edges of the flat surface intersect the outer surface; and', 'an air inlet port that extends from the flat surface to the passageway; and, 'a housing that comprisesa showerhead coupled to the housing and configured to receive water from the outlet of the housing.3. The showerhead assembly of claim 2 , wherein the housing includes a generally cylindrical portion having the outer surface claim 2 , and the flat surface is defined by a void in the generally cylindrical portion.4. The showerhead assembly of claim 3 , wherein the passageway includes a narrowing section that leads to the venturi throat and an expanded section downstream of the venturi throat claim 3 , wherein the air inlet port extends at an angle from the flat surface to the venturi throat.5. The showerhead assembly of claim 4 , wherein the housing includes a generally ball shaped portion extending from the generally cylindrical portion claim 4 , and the venturi throat is in the generally ball shaped portion.6. The showerhead assembly of claim 5 , wherein the generally cylindrical portion includes the inlet and a first portion of the passageway between the inlet and the venturi throat claim 5 , and the ball shaped portion includes a second portion of the passageway between the venturi throat and the outlet.7. The ...

Apparatus and Method for Reducing Actuator Thrust Requirements in a Control Valve

A trim assembly is provided with a cage with an internal surface and a cage port. A plug having an external surface is disposed in the cage and is operable between a closed position, a pressure balancing position and an open position. The trim assembly also includes a low friction flow restrictor disposed between the cage and the plug and a pressure energized seal disposed between the cage and the plug. A seal balancing volume defined by the internal surface of the cage, the external surface of the plug, the low friction flow restrictor and the pressure energized seal is provided. The seal balancing volume is in fluid communication with the cage port through the low friction flow restrictor and is maintained at a seal balancing volume pressure. The trim assembly further includes a pressure control assembly configured to vent the seal balancing volume.

METHOD FOR PROVIDING DEIONIZED WATER WITH DYNAMIC ELECTRICAL RESISTIVITY

A method includes mixing a first deionized water (DI) water from a first pipe and a second DI water from a second pipe in a merging pipe that is in fluid communication with the first pipe and the second pipe. An electrical resistivity of the first DI water is different from an electrical resistivity of the second DI water. A mixture of the first DI water and the second DI water is applied from the merging pipe onto a wafer. 1. A method , comprising:mixing a first deionized water (DI) water from a first pipe and a second DI water from a second pipe in a merging pipe that is in fluid communication with the first pipe and the second pipe, wherein an electrical resistivity of the first DI water is different from an electrical resistivity of the second DI water; andapplying a mixture of the first DI water and the second DI water from the merging pipe onto a wafer.2. The method of claim 1 , further comprising:measuring an electrical resistivity of the mixture of the first DI water and the second DI water.3. The method of claim 2 , wherein the electrical resistivity of the mixture of the first DI water and the second DI water are measured in the merging pipe.4. The method of claim 2 , further comprising:adjusting a flow rate of the first DI water through the first pipe according to the measured electrical resistivity of the mixture of the first DI water and the second DI water.5. The method of claim 4 , further comprising:adjusting a flow rate of the second DI water through the second pipe according to the measured electrical resistivity of the mixture of the first DI water and the second DI water.6. The method of claim 1 , further comprising:mixing a third DI water from a third pipe with the first DI water and the second DI water.7. The method of claim 6 , wherein an electrical resistivity of the third DI water is different from the electrical resistivity of the first DI water and the electrical resistivity of the second DI water.8. A method claim 6 , comprising:mixing a ...

HYDRAULIC BALANCING CONTROL VALVE AND RIDE CONTROL SYSTEM INCORPORATNG SAME

A balancing valve includes four ports. While the pressures at a pair of balancing ports of a hydraulic balancing valve are equal, the valve maintains two other ports in a closed position. Upon a pressure differential between the balancing ports, fluid communication can occur between one of the balancing ports and either of the other ports based upon the direction of the pressure differential. A hydraulic ride control system utilizes the balancing valve together with other control valves to provide ride control functionality. 1. A hydraulic balancing valve , comprising:a body, the body defining a bore, a charge port, a pump port, a tank port, and a control port, each of the charge port, the pump port, the tank port, and the control port being in fluid communication with the bore; a first position in which the charge port and the tank port are in fluid communication with each other and the charge port and the pump port are in fluid isolation from each other,', 'a second position in which the charge port, the tank port, and the pump port are in fluid isolation from each other, and', 'a third positon in which the charge port and the pump port are in fluid communication with each other and the charge port and the tank port are in fluid isolation from each other; and, 'a spool, the spool being movably disposed within the bore for directing hydraulic fluid between the charge port and the pump port and between the charge port and the tank port, the spool including a first pressure surface in fluid communication with the charge port and a second pressure surface in fluid communication with the control port, the first and second pressure surfaces facing in opposing relationship to each other, the spool being movable within the bore betweena biasing member, the biasing member operatively connected to the body and spool to bias the spool to the second position and configured to permit movement of the spool to the first position upon a first pressure differential between the ...

MIXING VALVE

A mixing valve () includes a valve body () having a hot fluid inlet (), a cold fluid inlet (), a mixed fluid outlet (), and a cavity () in the valve body () between the inlets () and the outlet (). Mixing valve () includes a liner () positioned in valve body () and a valve member () movable therein between a first position restricting the flow of hot fluid and a second position. Liner () includes a downstream valve seat () that, when engaged by valve member (), restricts flow of hot fluid past valve member (). 145-. (canceled)46. A mixing valve comprisinga valve body providing a first fluid inlet, a second fluid inlet, a mixed fluid outlet, and a cavity defined by at least one internal wall, the cavity being in communication with the inlets and the outlet, anda valve member movable along a central axis in the cavity between a position restricting flow from at least one of the fluid inlets and a position permitting flow through both of the inlets, the valve member including a central region and a plurality of spaced apart mixing fins each extending from the central region and including a surface that is non-parallel to the axis to facilitate mixing of the first and second fluids.47. The mixing valve of claim 46 , wherein each fin includes a generally radially outwardly facing front claim 46 , a left side and an opposite right side each extending between the front and the valve member claim 46 , the surface extending between a bottom edge of each of the left and right sides claim 46 , the bottom edge of one of the left and the right sides being axially upstream of the bottom edge of the other side.48. The mixing valve of claim 46 , wherein the surface of each mixing fin is perpendicular to the axis.49. The mixing valve of claim 46 , wherein the surface of each mixing fin faces radially inwardly and axially upstream.50. A mixing valve comprisinga valve body providing a first fluid inlet, a second fluid inlet, a mixed fluid outlet, and a cavity having a longitudinal ...

Water supply system comprising a venturi pipe

A water supply system includes a first pipe, a water reservoir, and a Venturi pipe having a first Venturi nozzle terminal, a second Venturi nozzle terminal and a Venturi nozzle branch arranged between the first and second Venturi nozzle terminal. The first Venturi nozzle terminal is connected via the first pipe to the water reservoir. The first Venturi nozzle terminal is connectable to a second pipe to fill the water reservoir. The branch of the Venturi pipe is connectable to a third pipe to supply taps. Water flows through the Venturi pipe from the first Venturi nozzle terminal to the second Venturi nozzle terminal when the water reservoir is filled, and water flows through the Venturi pipe from the second Venturi nozzle terminal to the Venturi nozzle branch during the supply procedure, to provide a water supply system which requires less maintenance and is less temperamental.

Safety valve for a backflushing and teat dip applicator system

A system for cleaning a dairy animal milker unit and applying dip to a dairy animal, the system includes a main control, an air supply, a water supply, a backflush fluid supply, a dip supply, a stall control for receiving the air, water, backflush fluid and dip supplies, and a safety valve that is adjacent to a downstream portion of the milker unit to control backflush and dip fluids being fed to the milker unit.

FLUID DISPENSING APPARATUS AND METHOD

A fluid dispenser and method of operating the same. The fluid dispenser can include a wheel driven by diluent passing along a flow path in the fluid dispenser. The wheel can be connected to a pump to pump fluid from a reservoir for dispense into the diluent. In some embodiments, the ratio of wheel rotations to pump cycles is selected to provide a desired and repeatable dilution ratio of concentrated fluid to diluent. The fluid dispenser can be portable and/or disposable, and in some embodiments is adapted for installation on an upper rim of a reservoir wall. Also, the fluid dispenser can be provided with a baffle limiting the velocity and impact of incoming diluent to the wheel driving the pump, thereby improving dosing accuracy of the dispenser in some embodiments. 1. A portable fluid dispensing apparatus for dispense of a fluid into a diluent and adapted for installation on an upper rim of a reservoir wall , the portable dispensing apparatus comprising:an inlet into which diluent flows;an outlet from which diluent exits the dispensing apparatus;a flow path long which diluent flows from the inlet to the outlet;a wheel having a plurality of vanes, at least a portion of the wheel located within the flow path;a fluid reservoir;a pump coupled to the wheel and in fluid communication with the fluid reservoir, the pump operable to pump fluid from the fluid reservoir responsive to rotation of the wheel; anda bearing surface positioned to contact the reservoir wall and through which the dispensing apparatus is supported upon the upper rim of the reservoir wall;wherein the inlet, outlet, wheel, fluid reservoir, pump, and bearing surface define a portable unit removable and mountable upon a reservoir wall without the use of tools.2. The portable fluid dispensing apparatus of claim 1 , further comprising an arm adjustable to different positions for receiving reservoir walls of different sizes.3. The portable fluid dispensing apparatus of claim 1 , further comprising a housing ...

SAFETY VALVE FOR AN AUTOMATED MILKER UNIT BACKFLUSHING AND TEAT DIP APPLICATOR SYSTEM

A system for cleaning a dairy animal milker unit and applying dip to a dairy animal, the system includes a main control, an air supply, a water supply, a backflush fluid supply, a dip supply, a stall control for receiving the air, water, backflush fluid and dip supplies, and a safety valve that is adjacent to a downstream portion of the milker unit to control backflush and dip fluids being fed to the milker unit. 1. An automated teat dip application system comprising:a main control;a water supply in communication with the main control;a dip supply in communication with the main control;a mixer in communication with the dip supply and the water supply; anda safety valve in fluid communication with the mixer and a downstream portion of a milker unit, and a dip valve piston for movement between a milking position and a backflush position, and the safety valve comprises:a first valve, a second valve, and a third valve comprising: a cylindrical cup having a closed end and an open end; and the closed end defines a first valve seat and a second valve seat, and the cylindrical cup defines a vent; and', 'the dip valve piston is at least partially disposed in the cylindrical cup and includes a first valve head disposed to engage the first valve seat when the first valve is closed, a second valve head disposed to engage the second valve seat when the second valve is closed, and a third valve element disposed to engage the third valve seat when the third valve is closed to the vent., 'a common valve seat element including2. The automated teat dip application system of claim 1 , wherein:the first valve head at least partially disposed outside of the cylindrical cup element when the first valve is open, the second valve head is at least partially disposed outside of the cylindrical cup element when the second valve is open, and the third valve element is at least partially disposed outside the cylindrical cup when the third valve is open to the vent.3. The automated teat dip ...

CASSETTE SYSTEM INTEGRATED APPARATUS

A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes. 18.-. (canceled)9. A fluid balancing cassette comprising:a first fluid flowpath and a separate, second fluid flowpath, each said first fluid flowpath and second fluid flowpath having a separate inlet to the cassette and a separate outlet from the cassette;a first fluid balancing pod having a fixed first total fluid volume and comprising a flexible membrane separating a first chamber from a second chamber, the sum of a first chamber volume plus a second chamber volume equal to the fixed first total fluid volume;the first chamber connected to the first fluid flowpath between a first fluid flowpath inlet valve and a first fluid flowpath outlet valve, and the second chamber connected to the second fluid flowpath between a second fluid flowpath inlet valve and a second fluid flowpath outlet valve;wherein said valves are pneumatically actuated membrane valves, and the first fluid flowpath inlet valve and the second fluid flowpath outlet valve are ganged together by being connected via a common actuation port or pneumatic line at a single pneumatic pressure to a pneumatic supply source able to controllably pressurize the common actuation port or pneumatic line to the single pneumatic pressure to actuate both the first fluid flowpath inlet valve and the second fluid flowpath outlet valve at the same time.101. The fluid balancing cassette of claim , further comprising a second fluid balancing pod having a fixed second total fluid volume and ...

Bidirectional Output Mixed Hydraulic Power System

The present invention relates to a bidirectional output mixed hydraulic power system, which includes a hydraulic fluid that stores and contains therein a fluid tank; at least one electrical hydraulic pump connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid; at least one mechanical hydraulic pump connected to the fluid tank to draw in, pressurize, and output the hydraulic fluid; at least two sequence check valves each connected to the electrical hydraulic pump and the mechanical hydraulic pump, each of the sequence check valves being set normally open in a first direction and preventing fluid returning in a second direction; and a dual pressure valve that is connected to the fluid tank and each of the sequence check valves for switching output direction of the hydraulic fluid.

Valve Block having a Valve Assembly

A valve block includes a plurality of control valve disks that form a first block part and a second block part. A supply pressure for the control valve disks of the first block part is limited by a common pressure-limiting valve. The common pressure-limiting valve is arranged such that a prevailing load pressure registered by the control valve disks does not exceed a specific value. The supply pressure for the control valve disks of the second block part is not limited.

Production string valve with multiseal shuttle

An oilfield production string portion including a valve with a valve housing, a multiseal shuttle including a piston and a lid, the piston having a through hole and movable in the housing for enabling linear flow through the valve or for enabling non-linear flow through the valve.

Ball valve with pressure relief feature

A valve assembly includes a valve body defining a main flow pathway ( 28 ) and a bypass channel ( 52 ) for bypassing the main flow pathway. A ball ( 20 ) is located in the main flow pathway and is moveable between an open position and a closed position. When the ball is in the open position, an open pathway through the ball fluidly completes the main flow pathway to provide an ordinary flow, and when the ball is in the closed position the ball blocks the main flow pathway. A pressure relief feature ( 50 ) is disposed in the bypass channel ( 52 ), and the valve body further defines a pressure relief passage ( 62 ) comprising a clearance between an outer surface of the ball ( 20 ) and the valve body. The pressure relief feature ( 50 ) permits a relief flow from the bypass channel ( 52 ) through the pressure relief passage ( 62 ) around the ball ( 20 ), and to the outlet ( 24 ) to relieve excess pressure in the connecting inlet piping ( 22 ).

Apparatus and method for flow equipartition

A system includes a first pressure-adjusting device positioned in a first line and a second pressure-adjusting device positioned in a second line. The first pressure-adjusting device is actuated solely via a first pneumatic signal output from a first pilot valve to control a downstream pressure in the first line. The second pressure-adjusting device is actuated via the first pneumatic signal in a first mode of operation, and is actuated via a second pneumatic signal output from a second pilot valve in a second mode of operation to control a downstream pressure in the second line.

Valve body with integral bypass

A valve body with an integral bypass includes a primary valve body portion defining a primary internal surface, the primary internal surface defining a primary bore extending through the primary valve body portion from a primary upstream end to a primary downstream end; and the bypass seamlessly integrated with the primary valve body portion, the bypass defining a bypass internal surface, the bypass internal surface defining a bypass bore, the bypass bore comprising a bypass upstream bore and a bypass downstream bore, the bypass upstream bore extending through the primary upstream end of the primary valve body portion, the bypass downstream bore extending through the primary downstream end of the primary valve body portion, the bypass internal surface seamlessly intersecting the primary internal surface at the primary upstream end and the primary downstream end.

Double Valve Block and Actuator Assembly Including Same

A valve comprises a housing including a first chamber, a second chamber, and a neutral chamber. In addition, the valve comprises a stem disposed within the housing. Further, the valve comprises a first valve member at least partially disposed in the first chamber and connected to the stem and a second valve member at least partially disposed in the second chamber and connected to the stem. The first valve member has a closed position seated in a first annular valve seat and an open position spaced apart from the first valve seat. The second valve member has a closed position seated in a second annular valve seat and an open position spaced apart from the second valve seat. Moreover, the valve comprises a biasing member configured to bias the second valve member to the closed position and the first valve member to the open position.

Drain-back check valve assembly

A drain-back check valve assembly includes a body having a passageway with an inlet and an outlet. A bypass port extends from the passageway to an outer surface of the valve body. A main poppet valve assembly is disposed in the passageway and moveable between a closed position which prevents fluid flow from the outlet to the inlet and an open position which allows fluid flow from the inlet to the outlet. The main poppet valve assembly includes a poppet and a spool guide fixed to the poppet. The guide has a sidewall which includes a drain-back port. When the main poppet valve assembly is in the closed position, the drain-back port is aligned with the bypass port. When the main poppet valve assembly is in the opened position, the drain-back port is not aligned with the bypass port.

Method of decreasing tire pressure

A method of decreasing tire pressure includes opening a wheel valve ( 22 ) to allow pressurized air from a tire ( 10 ) to be directed to a first valve assembly ( 14 ) and to atmosphere. A target pressure is selected for a fluid control conduit ( 28 ). The fluid conduit ( 28 ) is in fluid communication with the first valve assembly ( 14 ) and a second or control valve assembly ( 30 ). The pressure in the fluid conduit ( 28 ) is measured. If the measured pressure is greater than the target pressure, then the second valve assembly ( 30 ) is de-energized. If the measured pressure is less than the target pressure, then the second valve assembly ( 30 ) is energized. A valve ( 42 ) prone to leak under very low temperatures may be subjected to repeated cycles of pressure application and pressure release in order to form a fluid-tight seal.

AUTOMATED CONTROL MECHANISMS IN A HEMODIALYSIS APPARATUS

Systems for monitoring fluid flow in an extracorporeal blood circuit are described. The blood circuit of such systems can include plod pump having a pumping chamber of the blood pump separated from a control chamber of the blood pump by a flexible diaphragm. The control chamber can be configured to transmit positive or negative pressure to operate the diaphragm. The system can include a pressure sensor configured to measure pressure in the control chamber of the blood pump, and a controller configured to receive information from the pressure sensor and to control the delivery of pressure to the control chamber of the blood pump. The controller can also be configured to cause the application of a time-varying pressure waveform on the blood pump diaphragm during a fill-stroke of the blood pump, and to monitor a pressure variation in the control chamber measured by the pressure sensor. When so configured, such controller can transmit a value representing a magnitude of the measured pressure variation to a display associated with the extracorporeal blood circuit. 135.-. (canceled)36. A system for monitoring fluid flow in an extracorporeal blood circuit comprising:a pumping chamber of the blood pump separated from a control chamber of the blood pump by a flexible diaphragm, the control chamber configured to transmit positive or negative pressure to operate the diaphragm;a pressure sensor configured to measure pressure in the control chamber of the blood pump;a controller configured to receive information from the pressure sensor, and configured to control the delivery of pressure to the control chamber of the blood pump;wherein the controller is configured to cause the application of a time-varying pressure waveform on the blood pump diaphragm during a fill-stroke of the blood pump, and to monitor a pressure variation in the control chamber measured by the pressure sensor, and wherein the controller transmits a value representing a magnitude of the measured pressure ...

VAPOR DELIVERY DEVICE, METHODS OF MANUFACTURE AND METHODS OF USE THEREOF

A method comprises transporting a first stream of a carrier gas to a delivery device that contains a liquid precursor compound. The method further comprises transporting a second stream of the carrier gas to a point downstream of the delivery device. The first stream after emanating from the delivery device and the second stream are combined to form a third stream, such that the dew point of the vapor of the liquid precursor compound in the third stream is lower than the temperature of the plumbing that transports the vapor to a CVD reactor or a plurality of CVD reactors. The flow direction of the first stream, the flow direction of the second stream and the flow direction of the third stream are unidirectional and are not opposed to each other. 1. A delivery system for a liquid precursor compound comprising:a first regulator;a second regulator, wherein the first regulator is disposed upstream of the second regulator;a proportional valve disposed downstream of the first regulator and being in fluid communication with the first regulator;a delivery device disposed downstream of a first shutoff valve and having an inlet valve and an outlet valve;a physical-chemical sensor disposed downstream of the delivery device and being operative to analyze chemical contents of a fluid stream emanating from the delivery device, the physical-chemical sensor being in communication with the proportional valve;a first controller being in operative communication with the proportional valve and the physical-chemical sensor;at least one reactor being in fluid communication with at least one mass flow controller to extract the precursor vapor from the delivery device; andwherein the delivery system is operative to deliver a substantially constant number of moles of a liquid precursor compound vapor per unit volume of a carrier gas to a reactor that is in communication with the delivery system, wherein the liquid precursor compound is in a liquid state in the delivery device, wherein the ...

Control valve

The disclosure provides a control valve which includes a valve body and a valve gate. The valve gate is movably located inside the inner space. The control valve has a lower flow rate limit which is greater than zero. That is, the lower flow rate limit has no necessary to be zero, thus it is acceptable to have a cylindrical valve gate but not a spherical valve gate. Therefore, the valve gate can be directly installed into the valve body via the opening, which allows the valve body to be made of a single piece so as to simplify the processes of manufacturing and assembly.

VALVE BODY WITH IDENTIFICATION TAB

A valve body with an integral bypass includes a primary valve body portion defining a primary bore extending through the primary valve body portion from a primary upstream end to a primary downstream end, the primary bore defining an axis, the primary bore including a primary upstream bore extending through the primary upstream end and a primary downstream bore extending through the primary downstream end, the primary valve body portion configured to house a valve member between the primary upstream bore and the primary downstream bore; and the bypass seamlessly integrated with the primary valve body portion, the bypass defining a bypass bore, the bypass bore including a bypass upstream bore and a bypass downstream bore, the bypass including a bypass valve body disposed between the bypass upstream bore and the bypass downstream bore. 1. A valve body with an integral bypass comprising:a primary valve body portion defining a primary bore extending through the primary valve body portion from a primary upstream end to a primary downstream end, the primary bore defining an axis, the primary bore comprising a primary upstream bore extending through the primary upstream end and a primary downstream bore extending through the primary downstream end, the primary valve body portion configured to house a valve member between the primary upstream bore and the primary downstream bore; andthe bypass seamlessly integrated with the primary valve body portion, the bypass defining a bypass bore, the bypass bore comprising a bypass upstream bore and a bypass downstream bore, the bypass comprising a bypass valve body disposed between the bypass upstream bore and the bypass downstream bore, the bypass upstream bore extending through the primary upstream end and seamlessly intersecting the primary upstream bore, the bypass upstream bore extending radially outward and axially inward from the primary upstream bore to the bypass valve body relative to the axis, the bypass downstream bore ...

Detergent dosing controller

A detergent dosing controller that is convenient to use and has better effect is disclosed herein. One side of the main passage is a water inlet ( 101 ), another side of the main passage is outlet ( 102 ) connecting to liquid inlet of washing bucket, and valves A( 2 ), B( 3 ), C( 4 ), D( 5 ), pump ( 6 ) and nozzle ( 7 ) are equipped. The inlet of valve A connects to the bypass orifice A(a) of the main passage, inlet of valve B connects to liquid storage tank of detergent A, outlets of valve A and valve B connect to inlet of valve C, inlet of valve D connects to liquid storage tank of detergent B, outlets of valve C and valve D connect to inlet of the pump, outlet of the pump connects to bypass orifice B(b) of the main passage, and for the relative location of bypass orifices A and B of main passage, bypass orifice A is relatively close to the inlet of main passage, bypass orifice B is relatively close to the outlet of main passage, the nozzle connects to main passage by concatenation and between bypass orifices A and B. The invention is applicable to the dosing of detergent for electric washing equipments.

Mixing valve

A heating installation or cooling installation mixing device has a valve housing ( 14 ) including a first flow path from a first connection (A-B) to a second connection (A), and a second flow path from the first connection (A-B) to a third connection (B). A movable valve element ( 24 ), arranged inside the valve housing ( 14 ) in the flow paths, is configured to vary a ratio of cross sections of the flow paths. A valve element drive ( 36 ) is arranged on the valve housing ( 14 ) and includes an internal control device ( 38 ) for movement control of the drive ( 36 ) and includes a first communication interface ( 44 ) for external control device ( 40 ) communication and a second communication interface ( 46 ). An internal sensor ( 48, 50 ) is arranged in or on the valve housing ( 14 ) and is connected to the first communication interface ( 44 ) for transmitting a sensor signal to the external control device ( 40 ).

AUTOMATED CONTROL MECHANISMS AND METHODS FOR CONTROLLING FLUID FLOW IN A HEMODIALYSIS APPARATUS

Automated control mechanisms and methods for controlling fluid flow in a hemodialysis apparatus are described. The methods can involve a controller receiving information from a pressure sensor in a control chamber of a reciprocating diaphragm-based blood pump and causing the application of a time-varying pressure waveform on a diaphragm of the blood pump during a fill-stroke of the blood pump. The controller can be configured and programmed to monitor a pressure variation in the control chamber measured by the pressure sensor and to compare the measured pressure variation to a pre-determined value. Based on such comparison, the controller can initiate a procedure to pause or stop a dialysate pump of the hemodialysis apparatus if the magnitude of the measured pressure variation deviates from the pre-determined value. 145.-. (canceled)46. A method for controlling fluid flow in a hemodialysis apparatus comprising:a controller receiving information from a pressure sensor in a control chamber of a reciprocating diaphragm-based blood pump;the controller causing the application of a time-varying pressure waveform on a diaphragm of the blood pump during a fill-stroke of the blood pump;the controller monitoring a pressure variation in the control chamber measured by the pressure sensor;the controller comparing the measured pressure variation to a pre-determined value; andthe controller initiating a procedure to pause or stop a dialysate pump of the hemodialysis apparatus if the magnitude of the measured pressure variation deviates from the pre-determined value.47. The method of claim 46 , further comprising the controller comparing a pressure variation in the control chamber measured by the pressure sensor with a target signal or target pressure variation induced by the controller claim 46 , and the controller initiating a procedure to pause or stop the dialysate pump if a deviation between the measured pressure variation and the target signal or pressure variation is ...

Valve cage for receiving a valve member and method for operating a control valve with a valve cage and a valve member

A sleeve shaped valve cage for receiving a valve member is described. The valve cage can guide the valve member relative to the valve cage. The valve cage can include a throttle section configured to provide pressure-reduced flow rates of the processing fluid, the throttle section having multiple throttle conduits extending from an inside of the valve cage to an outside of the valve cage; a high capacity flow section adjacent to the throttle section in the displacement direction, the high capacity flow section configured to provide increased flow rates of the processing fluid; and at least one equalization channel formed in the valve cage and extending from the inside to the outside of the valve cage, the at least one equalization channel leading from the high capacity flow section to the throttle section such that, before the valve member releases all throttle conduits, the equalization channel is released.

Pumping cassette

A pumping cassette including a housing having at least two inlet fluid lines and at least two outlet fluid lines. At least one balancing pod within the housing and in fluid connection with the fluid paths. The balancing pod balances the flow of a first fluid and the flow of a second fluid such that the volume of the first fluid equals the volume of the second fluid. The balancing pod also includes a membrane that forms two balancing chambers. Also included in the cassette is at least two reciprocating pressure displacement membrane pumps. The pumps are within the housing and they pump the fluid from a fluid inlet to a fluid outlet line and pump the second fluid from a fluid inlet to a fluid outlet.

PUMPING CASSETTE

A pump cassette is disclosed. The pump cassette includes a housing having at least one fluid inlet line and at least one fluid outlet line. The cassette also includes at least one reciprocating pressure displacement membrane pump within the housing. The pressure pump pumps a fluid from the fluid inlet line to the fluid outlet line. A hollow spike is also included on the housing as well as at least one metering pump. The metering pump is fluidly connected to the hollow spike on the housing and to a metering pump fluid line. The metering pump fluid line is fluidly connected to the fluid outlet line. 120.-. (canceled)22. The fluid pumping cassette of claim 21 , further comprising one or more diaphragm valves comprising a flexible valve diaphragm separating a valve actuation chamber wall of the bottom plate from a valve fluid chamber wall of the second side of the middle plate claim 21 , the valve actuation chamber wall comprising a valve actuation port configured for connection to the source of positive or negative pneumatic pressure claim 21 , and the valve fluid chamber wall of the middle plate including two valve fluid ports communicating with respective valve fluid channels in the top plate facing the middle plate claim 21 , wherein the valve diaphragm is configured to occlude or permit fluid flow between the two valve fluid ports.23. The fluid pumping cassette of claim 22 , wherein a first one of said one or more diaphragm valves is interposed between the fluid inlet of the middle plate and an inlet channel of the primary pump fluid chamber claim 22 , and wherein a second one of said one or more diaphragm valves is interposed between the fluid outlet of the middle plate and an outlet channel of the primary pump fluid chamber.24. The fluid pumping cassette of claim 23 , further comprising a second one of the primary diaphragm pumps claim 23 , wherein a third one of said one or more diaphragm valves is interposed between the fluid inlet of the middle plate and an ...

Valve Arrangement

A valve arrangement includes at least two valves and a housing which is configured as an installation cartridge. One of the valves is configured as a pressure regulator and the other of the valves is configured as a delivery flow regulator. The valve arrangement is configured to be inserted or screwed into a variable-displacement pump, thereby minimizing the spatial requirement of the valve arrangement.

SAFETY VALVE FOR AN AUTOMATED MILKER UNIT BACKFLUSHING AND TEAT DIP APPLICATOR SYSTEM

A system for cleaning a dairy animal milker unit and applying dip to a dairy animal, the system includes a main control, an air supply, a water supply, a backflush fluid supply, a dip supply, a stall control for receiving the air, water, backflush fluid and dip supplies, and a safety valve that is adjacent to a downstream portion of the milker unit to control backflush and dip fluids being fed to the milker unit. 1. An automated teat dip application system comprising:a main control;a water supply in communication with the main control;a dip supply in communication with the main control;a mixer in communication with the dip supply and the water supply; anda safety valve in fluid communication with the mixer and a downstream portion of a milker unit, and a dip valve piston for movement between a milking position and a backflush position.2. The automated teat dip application system of claim 1 , and further comprising:an air supply in fluid communication with the dip valve piston for moving the dip valve piston between the milking position and the backflushing position.3. The automated teat dip application system of claim 1 , wherein the main control generates signals to control a supply of water and dip to the safety valve.4. The automated teat dip application system of claim 1 , and further comprising:a plurality of stall controls in communication with the mixer, and wherein the main control generates signals to deliver a mixture of water and dip to the plurality of stall controls.5. The automated teat dip application system of claim 1 , and further comprising:a stall control in communication with the mixer and the stall control generates signals to deliver a mixture of water and dip to the safety valve.6. The automated teat dip application system of claim 1 , wherein the safety valve comprises:a first dip valve piston seal;a second dip valve piston seal spaced apart from the first dip valve piston seal; anda dip valve piston vent disposed between the first dip valve ...

Downhole Fluid Control System

A fluid flow control system serving as an inflow port from a fluid reservoir (R) to the interior of a production pipe (S) is in the form of a housing (b, c, d, e, f, g, h, i, j, k, l). The housing has a primary flow path () and a secondary flow path (). The secondary flow path is in fluid communication with a chamber (B) in which is arranged an actuator () for a valve device (), the valve device arranged to open and close the primary flow path. At least one flow restrictor () is arranged in the secondary flow path, the flow restrictor arranged to provide a pressure to chamber (B) sufficient to actuate the valve to an open position when the fluid flowing through the secondary flow path is oil, and a pressure sufficient to actuate the valve to a closed position when the fluid has a viscosity and/or density less than oil. 1. A downhole fluid flow system comprising:a fluid control module having an upstream side and a downstream side, the fluid control module including a main fluid pathway in parallel with a secondary fluid pathway each excluding between the upstream and downstream sides;a valve element disposed within the fluid control module, the valve element operable between an open position wherein fluid flow through the main fluid pathway is allowed and a closed position wherein fluid flow through the main fluid pathway is prevented;a viscosity discriminator disposed within the fluid control module the viscosity discriminator having a viscosity sensitive channel that forms at least a portion of the secondary fluid pathway anda differential pressure switch operable to shift the valve element between the open and closed positions, the differential pressure switch including a first pressure signal from the upstream side a second pressure signal from the downstream side and a third pressure signal from the secondary fluid pathway the first and second pressure signals biasing the valve element toward the open position the third pressure signal biasing the valve element ...

SAFETY VALVE FOR A DAIRY SYSTEM COMPONENT

A system for cleaning a dairy animal milker unit and applying dip to a dairy animal, the system includes a main control, an air supply, a water supply, a backflush fluid supply, a dip supply, a stall control for receiving the air, water, backflush fluid and dip supplies, and a safety valve that is adjacent to a downstream portion of the milker unit to control backflush and dip fluids being fed to the milker unit. 1. A safety valve for a dairy system component , the safety valve comprising:a first valve;a second valve;a third valve; anda valve member that moves the safety valve between: a closed position, in which the first valve and the second valve are closed, and the third valve is open to a vent; and an open position in which the first valve and the second valve are open to a fluid flow channel between the first valve and the second valve, and the third valve is closed to the vent.2. The safety valve of claim 1 , wherein the first valve claim 1 , the second valve claim 1 , and the third valve each include a valve element joined to the valve member.3. The safety valve of claim 1 , wherein the first valve claim 1 , the second valve claim 1 , and the third valve comprise:a common valve seat element defining a valve seat for each respective valve, andthe valve member includes a plurality of valve elements, and each valve element is engagable with a corresponding valve seat.4. The safety valve of claim 1 , wherein the first valve claim 1 , the second valve claim 1 , and the third valve are at least partially formed in a common valve seat element comprising:a cylindrical cup element.5. The safety valve of claim 1 , wherein the first valve claim 1 , the second valve claim 1 , and the third valve are at least partially formed by openings in a common valve seat element including:a cylindrical cup element having a closed end and an open end; andwherein the closed end defines a first valve seat and a second valve seat, and the open end defines a third valve seat.6. The ...

MANIPULATION OF MICROFLUIDIC DROPLETS

The invention provides methods for assessing one or more predetermined characteristics or properties of a microfluidic droplet within a microfluidic channel, and regulating one or more fluid flow rates within that channel to selectively alter the predetermined microdroplet characteristic or property using a feedback control. 120-. (canceled)21. A system for controlling droplet flow rate , the system comprising:a microfluidic device comprising a microfluidic channel and a merge zone, the microfluidic channel comprising a first stream of droplets and a second stream of droplets;a sensor configured to detect flow rates of the first and second streams of droplets in the microfluidic channel; anda controller operably connected to the sensor, the controller configured to adjust the flow rates relative to each other to cause the first stream of droplets to intercalate with the second stream of droplet in the merge zone.22. The system of claim 21 , wherein the controller is configured to adjust the flow rates by adjusting a pressure of one or more fluids.23. The system of claim 21 , wherein the first and second streams of droplets comprise droplets differing in size claim 21 , color claim 21 , refractive index claim 21 , or extinction coefficient.24. The system of claim 21 , wherein the first and second streams of droplets contain different biological claim 21 , biochemical claim 21 , or chemical entities.25. The system of claim 21 , wherein a frequency ratio of the first stream of droplets to the second stream of droplets is selected from the group consisting of 1:1 claim 21 , 1:2 claim 21 , 1:3 claim 21 , 1:4 claim 21 , 1:5 claim 21 , 1:6 claim 21 , 1:7 claim 21 , 1:8 claim 21 , 1:9 claim 21 , and 1:10.26. The system of claim 25 , wherein the frequency ratio of the first stream of droplets to the second stream of droplets is 1:1.27. The system of claim 21 , wherein droplets of the first stream have a maximum cross-sectional dimension of less than about 100 microns.28. The ...

Valve with shuttle for use in flow management systems

A valve with a shuttle for use in a flow management system is capable of bypassing a backflow.

HP GAS SUPPLY SYSTEM AND METHOD

A gas supply system for providing high pressure (HP) gas to a low pressure (LP) gas destination, having a primary HP gas unit and a reserve HP gas unit, which provide regulated lower-pressure gas to a supply manifold, and an LP destination regulator that provides an LP regulated gas supply to a consumption subsystem. A one-way flow valve in fluid communication from the primary HP gas unit to the reserve HP gas unit, ensures that the reserve HP gas unit remains substantially full, even after numerous cycles of depletion and replacement of the primary HP gas unit, during which the HP supply is provided by the reserve HP gas unit, which helps to avoid the risk that the reserve tank pressure and supply might mistakenly, unexpectedly or unintentionally be depleted 16.-. (canceled)7. A method for providing high pressure (HP) gas to a low pressure (LP) gas destination using a primary HP gas supply source and a reserve HP gas supply source , comprising the steps of:{'sub': H', '1, '(1) supplying a primary HP gas stream at a primary high pressure Pfrom the primary HP gas supply source, and pressure regulating the primary HP gas stream to a supply gas stream at a primary regulated pressure P;'}{'sub': R', '2', '1, '(2) supplying a reserve HP gas stream at a reserve high pressure Pfrom the reserve HP gas supply source, and pressure regulating the reserve HP gas stream to the supply gas stream at a reserve regulated pressure Pthat is less than the primary regulated pressure P;'}{'sub': 3', '1', '2', '1', '3', 'H', '2', '3, '(3) further regulating the supply gas stream to a low pressure (LP) usage stream at a regulated usage pressure Pthat is less than Pand P; wherein when the primary high pressure Ph falls to the primary regulated pressure P, the primary HP gas supply source is substantially depleted, and both the primary HP gas stream and the reserve HP gas stream are supplied to the supply gas stream that is regulated to the LP usage stream at the regulated usage pressure P, ...

Shuttle Valve Stabilization Through Pressure Differential and Shuttle Valve with Hollow Poppet with Weep Hole

A shuttle valve has a valve body including a first valve seat defining a first fluid inlet, a second valve seat defining a second fluid inlet, and a center portion that is connected to the valve seats, the center portion defining a fluid outlet and a bore. A moveable member is moveable within the bore between a first position against the first valve seat and a second position against the second valve seat to control the flow of fluid from either of the first or second inlet to the outlet. The moveable member may be configured to have a unitary construction formed of a single component, by which a unitary shell defines a substantially hollow interior. The moveable member has a hollow interior and a weep hole for equalizing pressure between the hollow interior and exterior of the moveable member. 112.-. (canceled)13. A shuttle valve comprising: a first valve seat defining a first fluid inlet,', 'a second valve seat defining a second fluid inlet, and', 'a center portion that is connected to the first valve seat and the second valve seat,, 'a valve body comprisingwherein the center portion defines a fluid outlet and a bore; and 'a shell that defines a hollow interior, wherein the shell is configured to have a unitary construction formed of a single component that comprises a first head portion, a second head portion, and a barrel portion disposed between the first head portion and the second head portion, wherein the shell comprises at least one longitudinal groove formed in an exterior surface of the shell.', 'a moveable member that is moveable within the bore between a first position against the first valve seat and a second position against the second valve seat, wherein when the moveable member is in the first position, the second fluid inlet is in fluid communication with the fluid outlet and when the moveable member is in the second position, the first fluid inlet is in fluid communication with the fluid outlet, and wherein the moveable member comprises14. The ...

SYSTEM AND METHOD FOR MULTI-COMPONENT MIXTURE CONTROL

A system for controlling the mixing ratio of a multi-component mixture including a first pump connectable to a source of a first component and a second pump connectable to a source of a second component. The first and second pump being associated with at least one linear sensor for generating an output indicative of actual pump speed or shaft displacement of the pump. The system further includes a control circuit operative to utilize the output of the linear sensor of one of the pumps to generate a control signal for controlling the output of the other pump.

Joint connector

A ball joint connector is provided for linking a showerhead to a water supply pipe. The connector has an internal venturi that draws air into the connector to aerate water being provided to the showerhead. A flow control member is disposed in a fluid pathway connected to the venturi, preventing spraying or leaking out the air inlet, while reducing noise associated with the air induction.

Three-way valve drivable by a pump

Three-way valve drivable by a pump, switchable between at least two switch positions wherein a first port is selectively in fluid communication with a second port or with a third port. The three-way valve comprises a movable support and a pair of obstructing members carried by the movable support, at least one of which is responsive to the pressure applied by the pump at the first port, at least one of the movable support and obstructing members to being movable due to transitions between an off-state and an on-state of the circulation pump. The obstructing members are adapted to engage reciprocatingly the respective seats of the three-way valve. The obstructing members are capable of changing shape synchronously when the pump switches from the off-state to the on-state.

Dialysis Service Box

A dialysis service box for centralized control and plumbing arrangement of a dialysis machine is disclosed. The dialysis service box includes a plumbing arrangement having a supply inlet for supplying a fluid to the dialysis machine, a backflow preventer for preventing retrograde flow through the plumbing arrangement, a trap primer for maintaining a trap seal designed to prevent waste gases from flowing into the dialysis service box and a waste connection for allowing waste from the dialysis machine to exit. The dialysis service box can be universally installed to operate, control and adjust any dialysis machine that requires supply connection, waste connection, backflow preventer and trap primer, or any combination of the foregoing. 120- (canceled)21. A dialysis service box comprising:a casing having a top side portion, a bottom side portion, a rear side portion, a left side portion and a right side portion that collectively define an enclosure;a supply inlet configured to communicate with a source of fluid;a waste outlet configured to communicate with a waste disposal; and a plumbing system in fluid flow communication with the supply inlet;', 'a connection port configured to provide fluid to a dialysis machine;', 'a backflow preventer in fluid flow communication with the plumbing system and configured to prevent retrograde fluid flow through the plumbing arrangement; and', 'a trap primer in fluid flow communication with the plumbing arrangement;, 'a dialysis supply and waste management system disposed within the enclosure of the casing, the dialysis supply and waste management system comprisingthe dialysis service box further comprising a first adapter associated with the connection port, the first adapter configured to supply fluid to the dialysis machine.22. The dialysis service box of claim 21 , wherein the first adapter is disposed proximate an outside surface of the casing.23. The dialysis service box of claim 21 , wherein the first adapter is configured for ...

Mass Flow Controller for Substrate Processing

Methods and apparatuses for delivering a process gas to a processing chamber are provided. A mass flow controller includes a first flow line for introducing a process fluid and an inlet valve disposed along the first flow line for controlling a flow rate of the process fluid. The mass flow controller includes a second flow line for introducing a carrier fluid into the mass flow controller and a micro-electro-mechanical system (MEMS) Coriolis sensor for providing a density signal and a mass flow rate signal for a mixture of the process fluid and the carrier fluid. The mass flow controller provided includes an outlet valve for controlling a mass flow rate of the mixture that is output by the mass flow controller as well as a controller for operating the inlet valve based on the density signal and for operating the outlet valve based on the mass flow rate signal.

PRODUCT YIELD LOSS MANAGEMENT

During the production of consumable liquids such as milk, soup, and juice, the liquid consumable may be transferred from one location to another location through a fluid conduit. For example, a consumable liquid may be transferred from a storage tank to another destination through piping. At the end of the process, the piping may be purged with a flushing fluid to push the liquid consumable remaining in the piping to the end destination, thus preventing the volume of liquid remaining in the piping from being wasted. To control the flushing processing, fluid flowing through the piping may be fluorometrically analyzed to determine a concentration of product in the fluid. The flushing liquid can then be controlled based on the determined concentration. For example, the supply of flushing liquid may be terminated when the concentration of product falls below a threshold, indicating the flushing liquid is diluting the liquid consumable. 1. A method comprising:flushing a product liquid through a fluid conduit with a flushing liquid;fluorometrically analyzing fluid flowing through the fluid conduit to determine a concentration of product in the fluid; andcontrolling the flushing liquid based on the determined concentration of the product in the fluid.2. The method of claim 1 , wherein the product liquid comprises a human-consumable product.3. The method of claim 2 , wherein the product liquid comprises at least one of a dairy product claim 2 , a juice claim 2 , and a fermented beverage claim 2 , and the flushing liquid consists essentially of water.4. The method of claim 1 , wherein the fluid conduit extends from an outlet of a discharge reservoir to an inlet of a receiving reservoir claim 1 , and wherein fluorometrically analyzing fluid flowing through the fluid conduit comprises fluorometrically analyzing fluid flowing through the fluid conduit adjacent the inlet of the receiving reservoir.5. The method of claim 1 , wherein flushing the product liquid through the fluid ...

VAPOR DELIVERY DEVICE, METHODS OF MANUFACTURE AND METHODS OF USE THEREOF

A method comprises transporting a first stream of a carrier gas to a delivery device that contains a liquid precursor compound. The method further comprises transporting a second stream of the carrier gas to a point downstream of the delivery device. The first stream after emanating from the delivery device and the second stream are combined to form a third stream, such that the dew point of the vapor of the liquid precursor compound in the third stream is lower than the temperature of the plumbing that transports the vapor to a CVD reactor or a plurality of CVD reactors. The flow direction of the first stream, the flow direction of the second stream and the flow direction of the third stream are unidirectional and are not opposed to each other. 1. A method comprising:transporting a first stream of a carrier gas to a delivery device, the delivery device containing a liquid precursor compound, the first stream of carrier gas being at a temperature greater than or equal to 15° C., wherein the liquid precursor compound is in a liquid state in the delivery device;transporting a second stream of the carrier gas to a point downstream of the delivery device, wherein a flow direction of the first stream and a flow direction of the second stream are not opposed to each other;combining the first stream after emanating from the delivery device and the second stream to form a third stream;wherein a dew point of a vapor of the liquid precursor compound in the third stream is lower than an ambient temperature;analyzing chemical contents of the third stream disposing a physical-chemical sensor downstream of the delivery device;providing the physical-chemical sensor is in communication with a proportional valve;providing a first controller in operative communication with the physical-chemical sensor and with the proportional valve;providing at least one second controller in operative communication with the physical-chemical sensor and with at least one of a plurality of reactors; ...

Gas compression system

A combined multi-phase pump and compressor unit and a gas compression system are provided. The combined multi-phase pump and compressor unit functions on a centrifugal principle for transporting liquid and gas from a flow conditioner to a remote multi-phase receiving plant, wherein a rotating separator separates liquid and gas upstream of a compressor part of the combined multi-phase pump and compressor unit, wherein the separated liquid is collected in a rotating annulus in such a way that the liquid is given kinetic energy which is converted to pressure energy in a static system, and wherein the pressurized liquid bypasses the compressor part of the combined multi-phase pump and compressor unit, and then is re-mixed with the gas downstream of the combined multi-phase pump and compressor unit.

Blood treatment systems and methods

The present invention generally relates to hemodialysis and similar dialysis systems, including a variety of systems and methods that would make hemodialysis more efficient, easier, and/or more affordable. One aspect of the invention is generally directed to new fluid circuits for fluid flow. According to one aspect, a blood pump is configured to pump blood to a dialyzer of a hemodialysis apparatus, the blood pump comprising a pneumatically actuated or controlled reciprocating diaphragm pump. In an embodiment, the diaphragm of the pump comprises a flexible membrane formed or molded to generally conform to a curved inner wall of a pumping chamber or control chamber of the pump, wherein the diaphragm is pre-formed or molded to have a control side taking a convex shape, so that any elastic tension on the diaphragm is minimized when fully extended into a control chamber of the pump. In another aspect, a system for monitoring the adequacy of blood flow in a blood line of the hemodialysis apparatus allows a controller to suspend dialysate pumping operations if the adequacy of blood flow in the blood line is sub-optimal, and to present information on a display on the quality of blood flow in the blood line.

VALVE BODY WITH IDENTIFICATION TAB

A valve body includes a flange; and an identification tab disposed on the flange, the identification tab defining indicia. A pipe system includes a first flange; a second flange fastened to the first flange by a plurality of fasteners; and an identification tab disposed on the first flange, the identification tab defining indicia. 1. A valve body comprising:a flange; andan identification tab disposed on the flange, the identification tab defining indicia.2. The valve body of claim 1 , wherein:the flange defines an outer circumferential surface; andthe identification tab is disposed on the outer circumferential surface.3. The valve body of claim 2 , wherein the identification tab extends outward beyond a radius of the outer circumferential surface.4. The valve body of claim 1 , wherein the indicia indicate a design standard for the flange.5. The valve body of claim 1 , wherein:the identification tab defines an indicia surface;the indicia are defined by the indicia surface of the identification tab;the flange defines a flange face; andthe indicia surface is angled away from the flange face.6. The valve body of claim 5 , wherein:the flange defines an outer circumferential surface; andthe indicia surface extends outwards from the outer circumferential surface.7. The valve body of claim 1 , wherein the identification tab comprises a label claim 1 , and wherein the label defines the indicia.8. The valve body of claim 1 , wherein the indicia are recessed into an indicia surface of the identification tab.9. The valve body of claim 1 , wherein the indicia are raised from an indicia surface of the identification tab.10. A pipe system comprising:a first flange;a second flange fastened to the first flange by a plurality of fasteners; andan identification tab disposed on the first flange, the identification tab defining indicia.11. The pipe system of claim 10 , wherein the indicia are visible when the first flange is fastened to the second flange.12. The pipe system of claim 11 ...

CASSETTE SYSTEM INTEGRATED APPARATUS

A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes. 1. A pumping cassette comprising:a housing comprising at least two fluid lines comprising a first inlet fluid line and a first outlet fluid line for a first liquid, and a second inlet fluid line and a second outlet fluid line for a second liquid;at least one balancing pod within said housing and in fluid connection with said fluid lines, said balancing pod comprising a first chamber separated from a second chamber by a flexible membrane, the first chamber in fluid connection with the first line, and the second chamber in fluid connection with the second line, wherein said balancing pod balances the flow of the first fluid with the flow of the second fluid; andat least one reciprocating positive displacement membrane pump within said housing, said membrane pump having an interior cavity comprising an actuation chamber separated from a pumping chamber by a flexible membrane, wherein a stroke of said membrane pump is configured to pump a first_volume of the second fluid to the second chamber of the balancing pod, displacing the first volume of the first fluid from the first chamber of the balancing pod.2. The cassette claimed in wherein said reciprocating positive displacement pumps comprises:a curved rigid chamber wall; anda flexible membrane attached to said rigid chamber wall, wherein said flexible membrane and said rigid chamber wall define a pumping chamber.3. The cassette claimed in claim 1 , wherein said housing further comprises:a top ...

Shower control system

A shower control system has a controller and a control panel. The control panel includes a knob. The top surface of the knob has an inner ring and an outer ring; the outer ring has outlet buttons corresponding to a first outlet and a second outlet; when the outlet button is touched, the circuit of the controller sends a signal to the electromagnetic valve to open the first outlet or the second outlet; the inner ring is disposed with a display screen with a temperature displaying area, a volume displaying area, a temperature adjusting mode icon, a volume adjusting mode icon and a lock mode icon; when the knob is long pressed, the control panel is open, the inner ring lights up; the temperature displaying area, the volume displaying area of the displayer screen respectively displays the temperature and volume last used, and the lock mode icon is selected.

Automatic Switching Device for a Breathing Apparatus with an Alarm-Relief Function and Automatic Reset

Apparatus and associated methods relate to an automatic fluid alarm that provides an fluid-communication path between a secondary fluid source and a whistle port when a primary fluid source experiences a reduction in pressure, the automatic fluid alarm being user resettable by disconnecting the primary fluid source or otherwise reducing the primary source pressure and activating a reset member, thereby interrupting the fluid-communication path. In some examples, a piston member may provide a movable seal for providing the fluid-communication path and its interruption. An exemplary piston member may be slidably reset in a non-interrupting mode by an adequate primary fluid pressure, and slidably set in an interrupting mode by a user activation. The interrupting mode may silence the whistle which may facilitate user communication during what may be a stressful primary fluid source failure event. Some exemplary automatic fluid alarms may conserve secondary fluid when the whistle is silenced.

MIXING VALVE

A mixing valve () includes a valve body () having a hot fluid inlet (), a cold fluid inlet (), a mixed fluid outlet (), and a cavity () in the valve body () between the inlets () and the outlet (). Mixing valve () includes a liner () positioned in valve body () and a valve member () movable therein between a first position restricting the flow of hot fluid and a second position. Liner () includes a downstream valve seat () that, when engaged by valve member (), restricts flow of hot fluid past valve member (). 138.-. (canceled)39. A mixing valve for mixing a first relatively hotter fluid and a second relatively colder fluid , the mixing valve comprisinga valve body including a cold fluid inlet, a hot fluid inlet, a mixed fluid outlet, a cavity wherein fluid from the cold and hot fluid inlets flow together, the cavity having an upstream region and a downstream region, the downstream region being between. the upstream region and the mixed fluid outlet, a first seat disposed in the upstream region, and a second seat disposed in the downstream region;a thermostat assembly including a thermostat responsive to the temperature of the mixed fluid, the assembly movable between an extended position when the thermostat senses a relatively higher temperature and a retracted position when the thermostat senses a relatively lower temperature; anda valve member in the valve body movable in response to movement of the thermostat assembly between a first position engaging the first seat when the thermostat senses a first mixed fluid temperature, and a second position engaging the second seat, in the first position the valve member blocking the hot fluid inlet, the valve member moving to the second position in response to failure of the thermostat, and the valve member moving to a third position between the first and second seats when a second mixed fluid temperature lower than the first mixed fluid temperature is sensed by the thermostat, wherein the valve member blocks the cold ...

CASSETTE SYSTEM INTEGRATED APPARATUS

A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes. 16.-. (canceled)8. The cassette assembly of claim 7 , wherein at least one of the one or more of the plurality of rigid conduits includes a check valve to ensure unidirectional fluid flow.9. The cassette assembly of claim 7 , wherein the first and third cassettes are held against the second cassette through the rigid conduits by a plurality of clamps.10. The cassette assembly of claim 7 , wherein the first cassette and second cassette define a first fixed space of the fixed spaces claim 7 , and the third and second cassette define a second fixed space of the fixed spaces claim 7 , and said first and second fixed spaces are occupied by a plurality of pods claim 7 , each said pod having a rigid fluid connection to the first cassette and a separate rigid fluid connection to the second cassette if located in the first fixed space claim 7 , or having a rigid fluid connection to the third cassette and a separate rigid fluid connection to the second cassette if located in the second fixed space.11. The cassette assembly of claim 10 , wherein at least one of the plurality of pods is a diaphragm based pod pump claim 10 , and wherein a first rigid fluid connection of the pod pump is configured to carry pneumatic pressure to actuate the pod pump claim 10 , and a second rigid fluid connection of the pod pump is configured to carry fluid pumped by the pod pump.12. The cassette assembly of claim 10 , wherein at least one of the plurality of pods is a ...

MIXING VALVE

A mixing valve () includes a valve body () having a hot fluid inlet (), a cold fluid inlet (), a mixed fluid outlet (), and a cavity () in the valve body () between the inlets () and the outlet (). Mixing valve () includes a liner () positioned in valve body () and a valve member () movable therein between a first position restricting the flow of hot fluid and a second position. Liner () includes a downstream valve seat () that, when engaged by valve member (), restricts flow of hot fluid past valve member (). 159-. (canceled)60. A mixing valve comprising:a valve body providing a hot water inlet, a cold water inlet, a mixed water outlet, and an interior located within said valve body, the interior being in fluid communication with each said inlet and said mixed outlet;a thermostat located in a mixing region within the interior receiving cold water from said cold water inlet and the hot water;a valve member movable along a central axis in the interior between a first position restricting flow from said hot water inlet and a second position restricting flow from said cold water inlet, said thermostat coupled to said valve member to move said valve member in response to changes in temperature of the mixed water;a liner received in the interior, said liner having a liner hot inlet in fluid communication with the hot water inlet and a liner cold inlet in fluid communication with the cold water inlet, said valve member being movable relative to said liner, said liner having a bottom and the hot water inlet and the first position are proximate the bottom of said liner; anda coil spring adapted and configured to urge said valve member toward said second position, said spring being located proximate to the bottom of said liner, hot water from the hot water inlet passing around at least some of the coils of said coil spring before entering the mixing region, the second position being axially displaced in the same direction from both the hot water inlet and the first position. ...

漿液觸媒流分流器及其使用方法

Slurry Catalyst Flow Splitters and Methods of Using the Same

A system for feeding a slurry catalyst composition including: a primary slurry feed system comprising a primary slurry flow meter and a primary catalyst injection device, wherein the primary slurry flow meter measures a primary slurry catalyst composition flow rate to the primary catalyst injection device; and a secondary slurry feed system comprising a secondary slurry flow meter, a secondary carrier liquid, a secondary carrier liquid control device, and a secondary catalyst injection device, wherein the secondary slurry flow meter measures a secondary slurry catalyst composition flow rate to the secondary catalyst injection device, wherein the secondary carrier liquid control device controls a process parameter of the secondary slurry feed system based a ratio of the primary slurry catalyst composition flow rate to the secondary slurry catalyst composition flow rate.

Slurry catalyst flow splitters and methods of using the same

A system for feeding a slurry catalyst composition including: a primary slurry feed system comprising a primary slurry flow meter and a primary catalyst injection device, wherein the primary slurry flow meter measures a primary slurry catalyst composition flow rate to the primary catalyst injection device; and a secondary slurry feed system comprising a secondary slurry flow meter, a secondary carrier liquid, a secondary carrier liquid control device, and a secondary catalyst injection device, wherein the secondary slurry flow meter measures a secondary slurry catalyst composition flow rate to the secondary catalyst injection device, wherein the secondary carrier liquid control device controls a process parameter of the secondary slurry feed system based a ratio of the primary slurry catalyst composition flow rate to the secondary slurry catalyst composition flow rate.

Slurry Catalyst Flow Splitters and Methods of Using the Same

A system for feeding a slurry catalyst composition including: a primary slurry feed system comprising a primary slurry flow meter and a primary catalyst injection device, wherein the primary slurry flow meter measures a primary slurry catalyst composition flow rate to the primary catalyst injection device; and a secondary slurry feed system comprising a secondary slurry flow meter, a secondary carrier liquid, a secondary carrier liquid control device, and a secondary catalyst injection device, wherein the secondary slurry flow meter measures a secondary slurry catalyst composition flow rate to the secondary catalyst injection device, wherein the secondary carrier liquid control device controls a process parameter of the secondary slurry feed system based a ratio of the primary slurry catalyst composition flow rate to the secondary slurry catalyst composition flow rate.

Slurry catalyst flow splitters and methods of using the same

A system for feeding a slurry catalyst composition including: a primary slurry feed system comprising a primary slurry flow meter and a primary catalyst injection device, wherein the primary slurry flow meter measures a primary slurry catalyst composition flow rate to the primary catalyst injection device; and a secondary slurry feed system comprising a secondary slurry flow meter, a secondary carrier liquid, a secondary carrier liquid control device, and a secondary catalyst injection device, wherein the secondary slurry flow meter measures a secondary slurry catalyst composition flow rate to the secondary catalyst injection device, wherein the secondary carrier liquid control device controls a process parameter of the secondary slurry feed system based a ratio of the primary slurry catalyst composition flow rate to the secondary slurry catalyst composition flow rate.

Vapor delivery device, methods of manufacture and methods of use thereof

A method comprises transporting a first stream of a carrier gas to a delivery device that contains a liquid precursor compound. The method further comprises transporting a second stream of the carrier gas to a point downstream of the delivery device. The first stream after emanating from the delivery device and the second stream are combined to form a third stream, such that the dew point of the vapor of the liquid precursor compound in the third stream is lower than the temperature of the plumbing that transports the vapor to a CVD reactor or a plurality of CVD reactors. The flow direction of the first stream, the flow direction of the second stream and the flow direction of the third stream are unidirectional and are not opposed to each other.

Slurry catalyst flow splitters and methods of using the same

Slurry catalyst flow splitters and methods of using the same

A system for feeding a slurry catalyst composition including: a primary slurry feed system comprising a primary slurry flow meter and a primary catalyst injection device, wherein the primary slurry flow meter measures a primary slurry catalyst composition flow rate to the primary catalyst injection device; and a secondary slurry feed system comprising a secondary slurry flow meter, a secondary carrier liquid, a secondary carrier liquid control device, and a secondary catalyst injection device, wherein the secondary slurry flow meter measures a secondary slurry catalyst composition flow rate to the secondary catalyst injection device, wherein the secondary carrier liquid control device controls a process parameter of the secondary slurry feed system based a ratio of the primary slurry catalyst composition flow rate to the secondary slurry catalyst composition flow rate.

淤浆催化剂流量分流器及其使用方法

本发明提供了用于加料淤浆催化剂组合物的系统，该系统包括：第一淤浆进料系统和第二淤浆进料系统，所述第一於浆进料系统包括第一淤浆流量计和第一催化剂注射装置，其中所述第一淤浆流量计测定到所述第一催化剂注射装置中的第一於浆催化剂组合物的流速；所述第二於浆进料系统包括第二淤浆流量计、第二载液、第二载液控制装置和第二催化剂注射装置，其中所述第二淤浆流量计测定到所述第二催化剂注射装置中的第二淤浆催化剂组合物的流速，其中所述第二载液控制装置基于所述第一淤浆催化剂组合物流速与所述第二淤浆催化剂组合物流速的比率来控制所述第二淤浆进料系统的工艺参数。

SYSTEM FOR FEEDING A PASTE CATALYST COMPOSITION AND METHOD FOR CONTROLLING A PASTE CATALYST FLOW

sistema para alimentar uma composição de catalisador de pasta e método para controlar um fluxo de catalisador de pasta a presente invenção refere-se a um sistema para alimentar uma composição de catalisador de pasta que inclui: um sistema de alimentação de pasta primário que compreende um medidor de fluxo de pasta primário e um dispositivo de injeção de catalisador primário, em que o medidor de fluxo de pasta primário mede uma taxa de fluxo de composição de catalisador de pasta primária para o dispositivo de injeção de catalisador primário; e um sistema de alimentação de pasta secundário que compreende um medidor de fluxo de pasta secundário, um líquido condutor secundário, um dispositivo de controle de líquido condutor secundário, e um dispositivo de injeção de catalisador secundário, em que o medidor de fluxo de pasta secundário mede uma taxa de fluxo de composição de catalisador de pasta secundária para o dispositivo de injeção de catalisador secundário, em que o dispositivo de controle de líquido condutor secundário controla um parâmetro de processo do sistema de alimentação de pasta secundário com base em uma razão da taxa de fluxo de composição de catalisador de pasta primária para a taxa de fluxo de composição de catalisador de pasta secundária. System for Feeding a Pulp Catalyst Composition and Method for Controlling a Pulp Catalyst Flow The present invention relates to a system for feeding a pulp catalyst composition comprising: a primary pulp feed system comprising a meter primary pulp flow and a primary catalyst injection device, wherein the primary pulp flow meter measures a primary pulp catalyst composition flow rate to the primary catalyst injection device; and a secondary pulp feed system comprising a secondary pulp flow meter, a secondary conductive liquid, a secondary conductive liquid control device, and a secondary catalyst injection device, wherein the secondary pulp flow meter measures a secondary pulp catalyst composition flow rate for the ...

Flow dividers for suspended catalyst and their use procedures

1. Un sistema para alimentar una composición de catalizador en suspensión que comprende:(a) un sistema de alimentación de suspensión primaria que comprende un caudalímetro de suspensión primariay un dispositivo de inyección de catalizador primario, en el que el caudalímetro de suspensión primaria mide uncaudal de la composición de catalizador primario al dispositivo de inyección de catalizador primario; y(b) un sistema de alimentación de suspensión secundario que comprende un caudalímetro de suspensiónsecundario, un vehículo líquido secundario, un dispositivo de control de vehículo líquido secundario y undispositivo de inyección de catalizador secundario, en el que el caudalímetro de suspensión secundario mide uncaudal de la composición de catalizador en suspensión secundario al dispositivo de inyección de catalizadorsecundario,en el que el dispositivo de control de vehículo líquido secundario controla un parámetro de procedimiento del sistemade alimentación de suspensión secundario basado en una proporción del caudal de la composición de catalizador ensuspensión primario al caudal de la composición de catalizador en suspensión secundario, en el que el sistema dealimentación de suspensión secundario comprende adicionalmente un caudalímetro de vehículo líquido secundario,un controlador de vehículo líquido secundario, y un controlador de flujo de suspensión secundario, en el que elparámetro de procedimiento controlado por el dispositivo de control de vehículo líquido secundario es un caudal devehículo líquido secundario medido por el caudalímetro de vehículo líquido secundario, en el que el controlador devehículo líquido secundario controla el dispositivo de control de vehículo líquido secundario basándose en el caudalde vehículo líquido secundario y un punto de referencia de flujo de vehículo secundario desde el controlador de flujode suspensión secundario. 1. A system for feeding a suspension catalyst composition comprising: (a) a primary suspension feeding system ...

Catalyst suspension flow splitter and methods for use thereof

FIELD: chemistry.SUBSTANCE: catalyst composition suspension feeding system includes a) a primary suspension feeding system which includes a primary suspension flow metre and a primary catalyst injecting device; b) a secondary suspension feeding system which includes a secondary suspension flow metre, a secondary carrier liquid, a secondary carrier liquid flow control device, a secondary catalyst injecting device and further includes a secondary carrier liquid flow metre, a secondary carrier liquid controller and a secondary suspension flow controller. The primary suspension flow metre measures the flow rate of the primary suspension of the catalyst composition arriving at the primary catalyst injecting device. The secondary suspension flow metre measures the flow rate of the secondary suspension of the catalyst composition arriving at the secondary catalyst injecting device. The secondary carrier liquid flow control device controls a method parameter of the secondary suspension feeding system based on the ratio of the flow rate of the primary suspension of the catalyst composition to the flow rate of the secondary suspension of the catalyst composition. The method parameter, which is controlled by the secondary carrier liquid control device, is the flow rate of the secondary carrier liquid measured by the secondary carrier liquid flow metre. The secondary carrier frequency controller controls the secondary carrier liquid control device based on the flow rate of the secondary carrier liquid and the flow rate set by the secondary carrier liquid flow controller. The invention also discloses a catalyst composition suspension feeding system in which a carrier gas is used instead of a carrier liquid as well as corresponding devices, and a method of controlling flow of a catalyst suspension.EFFECT: uniform delivery of a catalyst composition suspension to multiple feeding points of a polymerisation reactor, not susceptible to clogging when trying to control flow rates of ...

Slurry catalyst flow splitters and methods of using the same

A system for feeding a slurry catalyst composition including: a primary slurry feed system comprising a primary slurry flow meter and a primary catalyst injection device, wherein the primary slurry flow meter measures a primary slurry catalyst composition flow rate to the primary catalyst injection device; and a secondary slurry feed system comprising a secondary slurry flow meter, a secondary carrier liquid, a secondary carrier liquid control device, and a secondary catalyst injection device, wherein the secondary slurry flow meter measures a secondary slurry catalyst composition flow rate to the secondary catalyst injection device, wherein the secondary carrier liquid control device controls a process parameter of the secondary slurry feed system based a ratio of the primary slurry catalyst composition flow rate to the secondary slurry catalyst composition flow rate.

Vapor delivery device, methods of manufacture and methods of use thereof

A method comprises transporting a first stream of a carrier gas to a delivery device that contains a solid precursor compound. The first stream of carrier gas is at a temperature greater than or equal to 20° C. The method further comprises transporting a second stream of the carrier gas to a point downstream of the delivery device. The first stream and the second stream are combined to form a third stream, such that the dewpoint of the vapor of the solid precursor compound in the third stream is lower than the ambient temperature. The flow direction of the first stream, the flow direction of the second stream and the flow direction of the third stream are unidirectional and are not opposed to each other.

Vapor delivery device, methods of manufacture and methods of use thereof

A method comprises transporting a first stream of a carrier gas to a delivery device that contains a solid precursor compound. The first stream of carrier gas is at a temperature greater than or equal to 20° C. The method further comprises transporting a second stream of the carrier gas to a point downstream of the delivery device. The first stream and the second stream are combined to form a third stream, such that the dewpoint of the vapor of the solid precursor compound in the third stream is lower than the ambient temperature. The flow direction of the first stream, the flow direction of the second stream and the flow direction of the third stream are unidirectional and are not opposed to each other.

Proportioner for chemical feed

Volumetric gas mixing system

A system for mixing gases volumetrically by comparing relative flows between the constituent gases and the combined total gas flow. A signal is supplied to a regulator valve in line with the constituent gas flow conduit to vary the amount of flow therein until the correct proportion is established. The total gas flow is not maintained constant.

Automatic liquid flow control device

An automatic liquid flow control device for use in the application of building insulation foam is disclosed comprising flow meters to measure the flow of resin and foaming agent through conduits to the application gun, a needle valve connected to the resin conduit and operated by a servo motor, a controller to control the servo motor and having a selector to allow selection of the desired ratio of resin to foaming agent, a comparator to compare the actual ratio of resin flow/foaming agent flow to the selected ratio with the controller automatically controlling the servo motor and needle valve to "slave" the resin flow to the foaming agent flow in order to adjust the resin flow/foaming agent flow to the selected ratio. The comparator also compares the actual flow through the resin and foaming agent conduits to predetermine flow values in order to determine abnormal operating conditions. Visual indicators provide visual indication of these abnormal operating conditions and provide visual indication of deviation from the selected ratio. The controller deactivates the servo motor in response to these abnormal operating conditions or to excessive deviation from the selected ratio. The driving pump for the resin and foaming agent liquids is electrically connectable to the controller so that the controller can also deactivate the pump due to the presence of abnormal operating conditions or excessive deviation of ratio mixture for a predetermined time interval.