Device for evaporating a volatile material

Device for evaporating a volatile material

An assembly for evaporating a volatile material, the assembly comprising a device 1 and a refill 2 which are detachable from one another, wherein the device includes a perforating element (105, Fig 4b) which is configured to pierce the refill, and an induction coil 103; wherein the refill includes a susceptor 204 and a sealed pierceable reservoir 201 containing the volatile material; wherein, in use, the susceptor is arranged to heat the material when the refill is positioned in the device and when an alternating current is passed through the induction coil. The susceptor may be magnetic and the device may further comprise a control unit to control the operation of the induction coil and a feedback coil 104 configured to interact with a magnetic field generated by the induction coil and the control unit is configured to process an output from the feedback coil and from this output, vary a property of the alternating current passed through the induction coil. The invention further comprises ...

Device for evaporating a volatile material

Device for evaporating a volatile fluid

Device for evaporating a volatile fluid

Device for evaporating a volatile fluid using magnetic hysteresis

An assembly for evaporating a volatile fluid (202), the assembly comprising a device (1) and a refill (2) which are detachable from one another; wherein the device (1) comprises a magnetic induction coil (103) configured to operate with an alternating current passed therethrough at a frequency of between 20KHz and 500KHz. The refill (2) comprises a reservoir for the volatile fluid (202), a wick (203) to draw the fluid from the reservoir, and a magnetic susceptor (204) arranged to heat the wick (203) predominately by magnetic hysteresis when said alternating current is passed through the induction coil. The magnetic susceptor (204) has a coercivity of 50 ampere/metre (HC) to 1500 ampere/metre (HC) and may be in direct contact with the wick (203), preferably embedded within. The device may further comprise a control unit and a feedback coil, allowing for the variation of the properties of the induction coil to apply an appropriate heating regime to different refills.

Device for evaporating a volatile fluid using magnetic hysteresis

An assembly for evaporating a volatile fluid (202), the assembly comprising a device and a refill (2) which are detachable from one another; wherein the device comprises a perforating element (105) and a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between 20KHz and 500KHz. The refill (2) comprises a reservoir for the volatile fluid (202) with a sealable pierceable cover (206) and a magnetic susceptor (204) arranged to heat the material (202) predominately by magnetic hysteresis when said alternating current is passed through the induction coil. The magnetic susceptor (204) has a coercivity of 50 ampere/metre (HC) to 1500 ampere/metre (HC) and may be embedded within the reservoir. Optionally the refill may further comprise a wick (203) to draw the fluid from the reservoir. The device may further comprise a control unit and a feedback coil, allowing for the variation of the properties of the induction coil to apply an appropriate heating regime to different refills.

Device for evaporating a volatile fluid using magnetic hysteresis

An assembly for evaporating a volatile fluid (202), the assembly comprising a device (1) and a refill (2) which are detachable from one another; wherein the device (1) comprises a magnetic induction coil (103) configured to operate with an alternating current passed therethrough at a frequency of greater than 20KHz. The refill (2) comprises a reservoir for the volatile fluid (202), a wick (203) to draw the fluid from the reservoir, and a magnetic susceptor (204) arranged to heat the wick (203) predominately by magnetic hysteresis when said alternating current is passed through the induction coil. The magnetic susceptor (204) may be in direct contact with the wick (203), preferably embedded within. There may also be an additional susceptor configured to heat an area around the induction coil. The device may further comprise a control unit and a feedback coil, allowing for the variation of amplitude, frequency or duty cycles of the induction coil to apply an appropriate heating regime to ...

Toilet Flush Detection System Utilizing Transducer with Piezoelectric Sounder Element

An arrangement for detecting toilet flushing by utilizing an acoustically-based motion detector in a simple amplifier circuit. The detector is in contact with the toilet bowl, which acts as a resonant system. Upon detection of such flushing, a subsequent event, such as a cleaning or disinfecting a toilet, ventilating the surrounding area or releasing deodorant into the area, may be triggered. The mechanically resonant system with the provided circuit is capable of separating frequencies from the frequency of the flushing water in a specific bowl design and provides a high degree of immunity to unwanted ambient frequencies. In addition, the system consumes low power and is suitable for battery power operation. 1. An arrangement for detecting toilet flushing in a toilet bowl comprising a mechanically resonant frequency selective technique capable of adapting to variations in a noise-producing spectrum.2. The arrangement of claim 1 , wherein the technique includes a piezo-electric transducer in an electric amplifier circuit capable of selecting a specific frequency in a spectral distribution of frequencies claim 1 , wherein the selected frequency is passed to the amplifier for subsequent processing.3. The arrangement of claim 2 , wherein the piezo-electric transducer is arranged on a shell which is in contact with the part of the toilet bowl.4. The arrangement of claim 3 , wherein the shell is a hemispherical plastic shell.5. The arrangement of claim 3 , wherein the piezo-electric transducer comprises a metal disc as a seismic mass and a metal disc as a stiffener. The present invention relates to an arrangement for detecting toilet flushing by utilizing an acoustically-based motion detector in a simple amplifier circuit in the vicinity of the toilet bowl. Upon detection of such flushing, a subsequent event, such as a cleaning or disinfecting a toilet, ventilating the surrounding area or releasing deodorant into the area, may be triggered.The need for electronically ...

Device for Evaporating a Volatile Fluid

An assembly for evaporating a volatile fluid is described, the assembly comprising a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough; and wherein the refill comprises a reservoir for the volatile fluid, a volatile fluid transport means to draw the fluid from the reservoir, and at least one susceptor arranged to heat the volatile fluid transport means when said alternating current is passed through the induction coil. Refills, devices and methods of operation are also described. 1. An assembly for evaporating a volatile fluid , the assembly comprising a device and a refill which are detachable from one another;wherein the device comprises a magnetic induction coil;and wherein the refill comprises a reservoir for the volatile fluid, a volatile fluid transport means to draw the fluid from the reservoir, and at least one susceptor arranged to heat the volatile fluid transport means when said alternating current is passed through the induction coil.2. An assembly according to claim 1 , wherein the susceptor is provided in direct contact with the volatile fluid transport means.3. An assembly according to or claim 1 , wherein susceptor is at least partially embedded within the volatile fluid transport means.4. An assembly according to any preceding claim claim 1 , wherein the susceptor surrounds a portion of the volatile fluid transport means.53. An assembly according to any of - claims 1 , wherein the susceptor is entirely embedded within the volatile fluid transport means.6. An assembly according to any preceding claim claims 1 , wherein the susceptor is at least partially located inside the induction coil during the operation of the assembly.7. An assembly according to any preceding claim claims 1 , wherein the refill is provided with a single susceptor.86. An assembly according to any of - claims 1 , wherein the refill is provided with ...

Device for Evaporating a Volatile Material

An assembly for evaporating a volatile material is described, the assembly comprising a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough; and wherein the refill comprises at least one susceptor and a substantially liquid-tight sealed reservoir containing the volatile material; wherein, in use, the susceptor(s) is arranged to heat the material when the susceptor(s) is at least partially positioned in the induced magnetic field generated, in use, when said alternating current is passed through the induction coil. Refills, devices and methods of use are also described. 1. An assembly for evaporating a volatile material , the assembly comprising a device and a refill which are detachable from one another:wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough;and wherein the refill comprises at least one susceptor and a substantially liquid-tight sealed reservoir containing the volatile material; wherein, in use, the susceptor(s) is arranged to heat the material when the magnetic susceptor(s) is at least partially positioned in the induced magnetic field generated, in use, when said alternating current is passed through the induction coil.2. An assembly according to claim 1 , wherein the refill is provided with a membrane to substantially liquid-tight seal the reservoir.3. An assembly according to claim 2 , wherein the membrane is a gas-permeable membrane.4. An assembly according to claim 2 , wherein the membrane includes one or more gas-permeable portions.5. An assembly according to any preceding claim claim 2 , wherein the refill is provided with a pierceable film to substantially liquid-tight seal the reservoir.6. An assembly according to any preceding claim claim 2 , wherein the device is provided with a perforating element which is configured to pierce the film ...

Device for Evaporating a Volatile Material

An assembly for evaporating a volatile material is described, the assembly comprising a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz; and wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/metre (H) to substantially 1500 ampere/metre (H) and a substantially liquid-tight sealed reservoir containing the volatile material; wherein, in use, the magnetic susceptor(s) is arranged to heat the material predominately by magnetic hysteresis when the magnetic susceptor(s) is at least partially positioned in the induced magnetic field generated, in use, when said alternating current is passed through the induction coil. Refills, devices and methods of use are also described. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. (canceled)21. (canceled)22. (canceled)23. (canceled)24. (canceled)25. (canceled)26. (canceled)27. (canceled)28. (canceled)29. (canceled)30. (canceled)31. (canceled)32. (canceled)33. (canceled)34. (canceled)35. (canceled)36. (canceled)37. (canceled)38. (canceled)39. (canceled)40. (canceled)41. (canceled)42. (canceled)43. A refill adapted for attachment to a device which evaporates a volatile material , wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/metre (Hc) to substantially 1500 ampere/metre (Hc) and a substantially liquid-tight sealed reservoir containing the volatile material.44. The refill according to claim 43 , wherein the refill is provided with a membrane to substantially liquid-tight seal the reservoir.45. The refill ...

Device for Evaporating a Volatile Material

An assembly for evaporating a volatile material is described, the assembly comprising a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz; and wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/metre (H) to substantially 1500 ampere/metre (H) and a substantially liquid-tight sealed reservoir containing the volatile material; wherein, in use, the magnetic susceptor(s) is arranged to heat the material predominately by magnetic hysteresis when the magnetic susceptor(s) is at least partially positioned in the induced magnetic field generated, in use, when said alternating current is passed through the induction coil. Refills, devices and methods of use are also described. 190-. (canceled)91. An assembly for evaporating a volatile material , the assembly comprising a device and a refill which are detachable from one another:wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz; and,wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/metre (HO to substantially 1500 ampere/metre (HO and a substantially liquid-tight sealed reservoir containing the volatile material; wherein, in use, the magnetic susceptor(s) is arranged to heat the material predominately by magnetic hysteresis when the magnetic susceptor(s) is at least partially positioned in the induced magnetic field generated, in use, when said alternating current is passed through the induction coil.92. An assembly according to claim 91 , wherein the refill is provided with a pierceable film to substantially liquid-tight seal the reservoir and wherein the device is ...

Device for Evaporating a Volatile Fluid

An assembly for evaporating a volatile fluid is described, the assembly comprising a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz; and wherein the refill comprises a reservoir for the volatile fluid, a volatile fluid transport means to draw the fluid from the reservoir, and at least one magnetic susceptor arranged to heat the wick predominately by magnetic hysteresis when said alternating current is passed through the induction coil, wherein the magnetic susceptor has a coercivity of substantially 50 ampere/metre (H) to substantially 1500 ampere/metre (H). Refills, devices and methods of operation are also described. 165.-. (canceled)67. An assembly as claimed in claim 66 , wherein any secondary eddy current heating is <50% of the heat generated in the magnetic susceptor claim 66 , and preferably <40% of the heat generated claim 66 , and more preferably <35% of the heat generated claim 66 , and most preferably less than <30% of the heat generated.68. An assembly according to claim 66 , wherein the magnetic susceptor(s) is made from at least one of the following materials: cast iron (annealed); nickel; nickel-coated steel; cobalt; carbon steel (annealed) 1% C; constructional steel particularly (0.3% C claim 66 , 1% Ni) and/or (0.4% C claim 66 , 3% Ni claim 66 , 1.5% Cr); cobalt-iron alloy (preferably Permendur 24 (24% Co) and/or Permendur 49 (49% Co)); Heusler alloy (61% Cu claim 66 , 26% Mn claim 66 , 13% Al);tool steel; powdered iron (preferably set in a resin base or the like); iron filings (preferably set in a resin base or the like).69. An assembly according to claim 66 , wherein the susceptor is made from a material with a stable Curie temperature claim 66 , preferably less than 150° C.70. An assembly according to claim 66 , wherein the susceptor is ...

Device for evaporating a volatile material

An assembly for evaporating a volatile material is described, the assembly comprising a device (1) and a refill (2) which are detachable from one another: wherein the device comprises a magnetic induction coil (103) configured to operate with an alternating current passed therethrough at a frequency of between substantially 20KHz to substantially 500KHz; and wherein the refill comprises at least one magnetic susceptor (204) having a coercivity of substantially 50 ampere/metre (He) to substantially 1500 ampere/metre (He) and a substantially liquid-tight sealed reservoir (201) containing the volatile material; wherein, in use, the magnetic susceptor(s) is arranged to heat the material predominately by magnetic hysteresis when the magnetic susceptor(s) is at least partially positioned in the induced magnetic field generated, in use, when said alternating current is passed through the induction coil. Refills, devices and methods of use are also described.

Device for evaporating a volatile fluid

Device for evaporating a volatile material

An assembly for evaporating a volatile material is described, the assembly comprising a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz; and wherein the refill comprises at least one magnetic susceptor having a coercivity of substantially 50 ampere/meter (H C ) to substantially 1500 ampere/meter (H C ) and a substantially liquid-tight sealed reservoir containing the volatile material; wherein, in use, the magnetic susceptor(s) is arranged to heat the material predominately by magnetic hysteresis when the magnetic susceptor(s) is at least partially positioned in the induced magnetic field generated, in use, when said alternating current is passed through the induction coil. Refills, devices and methods of use are also described.

device for evaporating a volatile fluid.

Device for evaporating a volatile fluid

An assembly for evaporating a volatile fluid is described, the assembly comprising a device (1) and a refill (2) which are detachable from one another: wherein the device comprises a magnetic induction coil (103) configured to operate with an alternating current passed therethrough at a frequency of between substantially 20KHz to substantially 500KHz; and wherein the refill comprises a reservoir (201) for the volatile fluid, a volatile fluid transport means (203) to draw the fluid from the reservoir, and at least one magnetic susceptor (204) arranged to heat the wick predominately by magnetic hysteresis when said alternating current is passed through the induction coil, wherein the magnetic susceptor has a coercivity of substantially 50 ampere/metre (He) to substantially 1500 ampere/metre (He). Refills, devices and methods of operation are also described.

Device for evaporating a volatile fluid

Device for evaporating a volatile fluid

Device for evaporating a volatile fluid

An assembly for evaporating a volatile fluid includes a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough at a frequency of between substantially 20 KHz to substantially 500 KHz; the refill comprises a fluid reservoir containing the volatile fluid, a wick and at least one magnetic susceptor arranged to heat the wick predominately by magnetic hysteresis when said alternating current is passed through the induction coil, wherein the magnetic susceptor has a coercivity of substantially 50 ampere/meter (H C ) to substantially 1500 ampere/meter (H C ). Refills, devices and methods of operation are also described.

Toilet flush detection system utilizing transducer with piezoelectric sounder element

An arrangement for detecting toilet flushing by utilizing an acoustically-based motion detector in a simple amplifier circuit. The detector is in contact with the toilet bowl, which acts as a resonant system. Upon detection of such flushing, a subsequent event, such as a cleaning or disinfecting a toilet, ventilating the surrounding area or releasing deodorant into the area, may be triggered. The mechanically resonant system with the provided circuit is capable of separating frequencies from the frequency of the flushing water in a specific bowl design and provides a high degree of immunity to unwanted ambient frequencies. In addition, the system consumes low power and is suitable for battery power operation.