СОЕДИНИТЕЛЬНЫЙ БЛОК ДЛЯ ПОДРЫВНЫХ ИНИЦИИРУЮЩИХ УСТРОЙСТВ

Изобретение относится к взрывным работам и может быть использовано в линиях инициирования и передачи сигнала детонации. Соединительный блок содержит элемент зажима, который взаимодействует с концом элемента корпуса для передачи сигнала для того, чтобы создать между ними дугообразную канавку для удерживания линии, в которую принимаются одна или несколько линий для передачи сигнала с выходного конца детонатора. Элемент зажима имеет уменьшающуюся толщину в направлении от его ближнего конца к по крайней мере его средней точке и предпочтительно неуменьшающуюся ширину от его ближнего конца до открытого конца канавки для удерживания линии. Изобретение позволяет облегчить боковое вставление линий для передачи сигнала в канавку для удерживания линии и их удерживания при использовании в широком диапазоне температур и обеспечить возможности отличной защиты от шрапнели. 3 с. и 21 з.п. ф-лы, 1 табл., 8 ил.

Initialladung

Schnurartiger Zuender fuer Sicherheitszuendschnuere

Verbindungsblock zum Erzeugen einer Biegung in darin gehaltenen Stoßwellenrohren

Die vorliegende Erfindung schafft einen Verbindungsblock zum Rückhalten mindestens eines Stoßwellenrohrs in einem Signalübertragungsverhältnis zu dem Stoßbetätigungsende eines Detonators. Der Verbindungsblock gemäß der vorliegenden Erfindung weist einen Schlitz (7, 26, 46, 64, 87) zum Rückhalten von Stoßbetätigungsrohren darin auf, wobei der Schlitz zum Erzeugen einer Biegung (8a, 27a, 47a, 91a) in dem bzw. in den Stoßwellenrohren ausgebildet ist. Auf diese Weise wird die Position des bzw. der Stoßwellenrohre relativ zu dem Detonator beträchtlich verbessert. Luftspalten zwischen den Stoßwellenrohren und dem Detonator, die aus Fertigungstoleranzen resultieren, können im wesentlichen beseitigt werden. Ferner bieten die Verbindungsblöcke gemäß der vorliegenden Erfindung eine verbesserte Sicherheit hinsichtlich der Stoßwellenrohr-Rückhaltung, so dass das Risiko eines unbeabsichtigten Entfernens oder einer unbeabsichtigten Verlagerung des Stoßwellenrohrs reduziert wird.

Boron compound

The double salt Cs2B12H12.CsNO3 is prepared by bringing together a source of B12H12= ions, a source of Cs+ ions and a source of NO3 - ions in a solvent inert to the reactants, and isolating the resultant product. The source of B12H12= ions may be the dihydrogen, the diammonium, a di-(N-substituted ammonium) or a di-(alkali metal) salt and the source of NO3 - ions may be nitric acid or an alkali metal nitrate. In the reaction medium, the preferred molar ratio of NO3: B12H12 is at least 3. The cesium salts of B12H12= and NO3 - may be used in the reaction. The preferred solvent, or reaction medium, is water. The double salt product, which is usually separated by precipitation or crystallization and filtration, is used as an ignition composition in electric initiators and squibs. The initiators are constructed (see Figure) of a shell 11 having a closed end into which is loaded a base charge 12 of conventional explosive, e.g. cyclonite, PETN, picric acid, T.N.T. ethylene ...

Improvements in or relating to delay action detonators and fuzes and delay compositions for use therein

... 462,000. Fuzes and fuze compositions. SOSSON, C. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 29, 1935, No. 24193. [Classes 9 (i) and 9 (ii)] A substantially gasless delay composition for use in sealed casings comprises - a mixture of antimony, zinc, and potassium permanganate, to which may be added a small proportion of an inert inorganic material such as lead chromate or zinc oxide. The composition is filled into a lead tube and compressed by drawing the tube to a smaller diameter. A short length 3 of such a tube filled with the composition 4 is inserted in a detonator 1 between the main charge 2 and an electric fuze head 7 situated in a fire-proof paper sleeve 5, as described in Specification 428,872. This is covered by a rubber plug 8 followed by a bituminous composition 11. The casing is crimped at 10 around the rubber plug.

BLASTING SALVOS METHOD AND APPARATUS FOR FILLING AND SEALING PLASTICS

... 1420950 Blasting NITRO NOBEL AB 1 Dec 1972 [1 Dec 1971] 55679/72 Heading F3A [Also in Division E1] A method of connecting a blasting salvo using initiators each of which comprises a low energy fuse-cord 4, Fig. 15, having a primer P secured to one end and a connecting block 1 secured to the other, the connecting block enclosing a charge 10 against which the end of the fuse-cord is secured and means for holding a middle portion of another fuse-cord next to the charge, comprises: (a) placing the primer P of each initiator in each blasting charge; (b) connecting the connecting block of each initiator directly to the fuse-cord of the next, leaving the block of the last initiator free; and (c) connecting means for firing the salvo to the fusecord of the first initiator. Any initiator can be lengthened by means of a member comprising low energy fuse-cord extending into a connecting block at one end and having a moisture proof closure at the other. The means for initiating the salvo comprises ...

A PROPAGATING DEVICE FOR LOW ENERGY FUSES

A shock tube arrangement

A shock tube arrangement comprises a shock tube (2) and a termination (1) for the shock tube comprising a moulding (6) having a sleeve (7) surrounding a terminal part of the shock tube. The moulding also has a main part (8) defining a cavity to receive a squib or pyrotechnic repeater. The material of the moulding (6) has a melting point or moulding temperature which is approximately equal to or higher than the melting point of the material forming the outer layer (5) of the shock tube (2). The moulding is thus firmly bonded to the shock tube. The moulding (6) and outer layer (5) may comprise thermoplastic urethane having a melting point of about 200 DEG C. ...

Improvements in and relating to blasting

... 1,062,179. Deflagrating compositions. E. I. DU PONT DE NEMOURS & CO. Dec. 23, 1963 [Dec. 21, 1962], No. 50788/63. Addition to 999,286. Heading C1D. [Also in Division F3] A deflagrating composition for the core of a delay initiation cord (see Division F3) comprises (a) a mixture of lead azide with a non- explosive diluent or with nitromannite, PETN, tetrazene, or diazodinitrophenol; or (b) a mixture of the lead salt of dinitro-orthocresol and potassium chlorate with or without tetrazene, PETN, lead styphnate, or diazodinitrophenol. The non-explosive diluent may be graphite, calcium stearate, methyl cellulose, polychlorinated polyphenols, modified fatty esters, polyisobutylene, dextrin, paraffin or other wax, talc, neoprene, lead carbonate, red lead, ammonium phosphate, polyvinyl acetate, or ehlorosulphonated polyethylene.

LOW ENERGY FUSES

IN-LINE CONNECTOR

Delay compositions

... 795,271. Blasting fuzes and delay compositions therefor. CANADIAN INDUSTRIES, Ltd. April 3, 1956 [Aug. 3, 1955], No. 10116/56. Classes 9(1) and 9(2) A gas-less, slow-burning delay composition comprises silicon, solid mon-metallic material from the group consistirig of selenium and tellurium, and oxidizing material from the group consisting of lead oxides and water-insoluble metallic chromates. Preferably not more than 65 per cent by weight of the composition is silicon and when the oxidizing 'material consists only of chromates, the silicon fraction is not more than 40 per cent. A ventless delay electric blasting cap, in which the delay composition 5 is used has a solid drawn metal shell 1 containing a detonating charge 2, e.g. of tetryl or pentaerythritol tetranitrate into which is pressed a priming charge 3, e.g. lead azide mixed with lead styphnate. The delay composition is housed in a lead tube 4 above which is an ignition charge 10, such as a mixture by weight of 98 per cent red lead ...

Detonation of explosives

Detonation of explosives

Detonation of explosives

Detonation of explosives

Detonation of explosives

Production of pyrotechnic delay composition

Manufacture of pyrotechnic time delay compositions

DETONATION OF EXPLOSIVES

SHOCK TUBE BLASTING

Detonation of explosives

Signal tube connector

Signal tube connector

SHOCK TUBE BLASTING

SHOCK TUBE BLASTING

Detonation of explosives

Manufacture of pyrotechnic time delay compositions

Production of pyrotechnic delay composition

EXPLOSION OF EXPLOSIVE CHARGES

STRENGTHENING AND IGNITION SET FOR ZUENDSCHNUERE AND VERZOEGERUNGSSAETZE

STRENGTHENING AND IGNITION SET FOR ZUENDSCHNUERE AND VERZOEGERUNGSSAETZE

UNIT TO THE ZUNDUNG OF AN EXPLOSIVE

PYROTECHNIC DELAY ELEMENT, PROCEDURE FOR ITS PRODUCTION AS WELL AS ITS USE

Conductive shock tube

A shock tube for propagating and initiating a signal to an explosive charge which includes at least first and second elongate flexible conductors on a body of the detonator to enable two-way communication between the explosive charge and a blasting machine thereby to confirm the status of the detonator prior to sending a fire signal.

Detonation of explosives

DELAY TRAIN IGNITION BUFFER

Detonating cord clip

Apparatus for use with a perforating device (10) includes a section (140) having a window (142) and a detonating cord (20) disposed in a bore (144) of the section. The apparatus may include a detonator (102) configured to generate a high order detonation; and a clip (100) connecting the detonator to the detonating cord. The clip may be formed as a ribbon having a base (110) and a prong (114) extending from opposing sides of the base. The base has an opening (112) for receiving the detonator. The prongs have biased ends (116) to secure the detonating cord against a face of the detonator.

Detonation of explosives

An explosives detonator system for detonating an explosive charge with which it is, in use, arranged in a detonating relationship is provided. On acceptance of a detonation initiating signal having a detonation initiating property, the system initiates and thus detonates the explosive charge. The system includes an initiating device which accepts the detonation initiating signal and initiates and thus detonates the explosive charge. The initiating device is initially in a non-detonation initiating condition, in which it is not capable of accepting the detonation initiating signal. The system also includes a switching device that detects a chemical compositional component as a switching property of a switching signal that is transmitted to the detonator system, with the switching device being capable of switching the initiating device, on detection of the chemical compositional component, to a standby condition in which the initiating device accepts the detonation initiating signal when ...

LOW ENERGY FUSES

Secure connector for blast initiation signal transfer

Method and apparatus for transfer of initiation signals

A BLASTING CONNECTOR BLOCK

A block connector for holding both a detonator, having an explosive end, and signal lines. The connector has a body member and a cover. The body member has an elongated, open, base and a connector head at one end of the base. The connector head holds the signal lines. The base has a support for supporting the detonator in an operative position with its explosive end in at least close proximity to the signal lines held in the connector head. The cover is locked to the base over the detonator when the detonator is mounted on the support in the operative position and a retainer on the cover :retains the detonator in the operative position. The cover preferably is separate from the body member.

SHOCK TUBE INITIATOR

A shock tube initiator (STI) for allowing the remote and/or manual initiation of at least one shock tube, typically two shock tubes is disclosed. The STI consists of: a) at least one coupling 8, connected to a shock tube containing a shot shell primer that upon firing initiates burning of the shock tube,b) a cockable mechanical firing mechanism 7 adjacent to the coupling 8 wherein the mechanical firing mechanism 7 is adapted to strike respective firing pins 9 within the couplings,c) a safety mechanism 15 adapted to allow the mechanical firing mechanism 7 to ignite said explosive charge only when the safety mechanism 15 is moved from a safe mode position to an armed position,d) a rotary solenoid valve 24, electrically connected to and energised by a remote controlled operating system, ande) an actuator 10 positioned between and engageable with the rotary electro-mechanical energising means 24 and the firing mechanism 7 and wherein said actuator 10 is adapted to be actuated either by the ...

PYROTECHNIC VARIABLE DELAY CONNECTOR

... "Pyrotechnic Variable Delay Connector" A field adjustable delay connector for use in detonating cord hook-ups for multi-charge blasting particularly adapted to work effectively with low energy shock or detonating cord. The delay connector is so constructed that the donor cord initiates combustion in a variable length of burning composition,the length being mechanically adjustable by the blaster during hook-up.

CONDUCTOR CONTAINING EXPLOSIVE GAS MIXTURE FOR INITIATION OF IGNITION ELEMENT AND EXPLOSIVE CHARGE

ABSTRACT OF THE DISCLOSURE The invention relates to a conductor for transmission of an initiation to an ignition element. In accordance with the invention, the conductor consists of a plastic tube, filled with explosive gas and made in such a way that turbulence is achieved in the ignition zone for the solid ignition substance. The velocity with which the initiation is transmitted is regu-lated by a chosen component, by chosen components and their relation to each other, by gas pressure, by temperature, and by the inner diameter of the tube.

WATER RESISTANT HIGH EXPLOSIVE

CONNECTOR BLOCK WITH SHOCK TUBE RETENTION MEANS AND FLEXIBLE AND RESILIENT CLOSURE MEMBER

The present invention provides a connector block for retaining shock tubes in signal transmission relationship with the percussion-actuation end of a detonator. The connector block is configured for facile lateral insertion of shock tubes. In this regard, less insertion force is required to insert the shock tubes into the connector block, thereby reducing the possibility of shock tube damage upon insertion. In addition, the connector block of the present invention provides improved shock tube retention, and reduces the possibility of accidental removal of a shock tube from the connector block.

ENERGETIC LINEAR TIMING ELEMENT

A timing element for an initiator is made from a reactive polymeric material such as, e.g., a glycidyl azide polymer. The reactive polymeric material may include pulverulent oxi~dizer additives, such as ammonium, perchlorate and/or ferric oxide. The oxidizer additives are used to increase the rate of reaction and the output spark of the polymer material. The timing element serves to delay the travel of an initiation signal between an input, such as a signal transmission input line, and an explosive output charge, for a predetermined period of time, usually about 5 to about 10,000 milliseconds, e.g., about 9 to about 9600 milliseconds.

DETONATION OF EXPLOSIVES

This invention relates to a chemical detonator including a housing, having an open end and a closed end; and a detonation element located in the housing, into which a shock tube for initiating the detonation element intrudes, wherein the housing and the shock tube are of plastics construction and the housing is substantially cylindrical cup shape, and wherein the shock tube intrudes into, and is welded to, the open end to hold the shock tube at a desired spacing from the detonation element. The detonator includes a detonation element that comprises a series of charges. The invention relates, further, to a method of manufacturing such a chemical detonator.

CONNECTOR BLOCK FOR BLAST INITIATION SYSTEMS

A connector block (10) includes a clip member (30) which cooperates with the signal transmission end (12a) of body member (12) to define therebetween an arcuate line-retaining slot (32) within which one or more signal transmission lines (40) are received in explosive signal communication with the output end (16a) of a detonator (16). Clip member (30) is of decreasing thickness as sensed moving from the proximal end (30b) thereof towards at least its midpoint and is preferably of undiminished width from the proximal end (30b) thereof to the open end (32b) of the line-retaining slot (32). These features and the configuration of the entryway (34) cooperate to facilitate lateral insertion of signal transmission lines (40) into the line-retaining slot (32) and their retention therein over a broad temperature range of use, and provide excellent shrapnel shielding.

CONNECTOR FOR BLAST INITIATION SYSTEM

Verzögerungszündkomposition

Zündlochloser, kurzperiodischer, elektrischer Detonationszünder.

Schlagwettersicherer Verzögerungssatz

Détonateur

Dispositif de temporisation pour cordons détonants à faible puissance explosive

Dispositif de mise à feu à cordeau

Dispositif à cordon détonant

DEVICE FOR CONNECTING A DETONATION CORD WITH A ZUENDER.

PYROTECHNIC DELAY ELEMENT FOR DELAYED-ACTION FUZES AS WELL AS ITS USE.

Pyrotechnic blasting chain connecting insert for firework, has elongated body with front end whose outer dimensions are homologous to that of inner cylindrical surface of cavity that forms igniter receptacle of nozzle

La chaîne pyrotechnique comporte une mèche souple (12) reliée à l'artifice et solidarisée à une douille rigide (10) traversée par un orifice axial (14) recevant l'extrémité (16) de la mèche et comportant une cavité cylindrique (18) prévue pour recevoir un inflammateur électrique (20). L'élément de liaison de l'invention (40 ; 70) est destiné à coopérer avec cette douille (10). Il comprend un corps allongé (42 ; 72), traversé par un conduit axial (44 ; 74), dont l'extrémité avant (50 ; 80) est homologue de la cavité (18) formant réceptacle d'inflammateur, l'extrémité avant de l'élément formant ainsi la partie mâle d'une liaison pyrotechnique dont le réceptacle forme la partie femelle. Une portion de mèche (46 ; 76) est logée à l'intérieur du conduit et son extrémité libre atteint le débouché avant du conduit ou le voisinage de celui-ci. Du côté opposé la portion de mèche (46) émerge hors du conduit axial (44) au-delà de la partie arrière de l'élément de liaison (40) en terminaison de chaîne ...

DEVICE OF CONNECTION Of AT LEAST TWO CONDUCTING TUBES HAS SHOCK WAVE

PYROTECHNIC DEVICE OF DELAY

Pyrotechnic composition for the cords which delays

La présente invention concerne une composition pyrotechnique destinée à la réalisation de cordeaux retards, du type constituée d'un mélange de poudres de tungstène, de chromate de baryum et de perchlorate de potassium, caractérisée en ce qu'elle renferme une poudre de silice ultrafine dont les particules présentent un diamètre moyen compris entre 7 et 40 millimicrons, suivant un pourcentage en masse de l'ordre de 0,5 à 1,5 %, pour réaliser un enrobage des particules des poudres.

Ignition system for slow wick

PYROTECHNIC COMPOSITION FOR DETONATORS HAS COURT-RETARD “ANTIGRISOU”

DEVICE DETONATOR TEMPORIZES IMPROVES

Dispositifs détonateurs temporisés qui contiennent uniquement des matériaux pyrotechniques et des explosifs secondaires. Le dispositif comporte : un corps 10 possédant une chambre interne 22, un disque percuteur 32, une charge explosive secondaire donatrice 36, une charge de temporisation pyrotechnique 38 possédant une caractéristique de combustion lente adjacente à ladite charge donatrice à l'intérieur de ladite chambre, et des moyens d'inflammation 40 pour déclencher la combustion de ladite charge de temporisation. La déflagration de la charge donatrice provoque le cisaillement de la partie centrale du disque percuteur et sa propulsion vers une charge acceptrice 28. Applications pyrotechniques, notamment à températures élevées. Delayed detonator devices which contain only pyrotechnic materials and secondary explosives. The device comprises: a body 10 having an internal chamber 22, a striker disk 32, a donor secondary explosive charge 36, a pyrotechnic delay charge 38 having a slow combustion characteristic adjacent to said donor charge inside said chamber, and ignition means 40 for initiating combustion of said timing charge. The deflagration of the donor charge causes the central part of the striker disc to shear and propel it towards an acceptor charge 28. Pyrotechnic applications, in particular at high temperatures.

Improvements to tight capsules for wicks mine

PYROTECHNIC DELAY ELEMENT FOR DELAY FUZES AND ITS USE

DETONATION JUNCTION FOR BLASTING NETWORKS

A detonator junction for use in a blasting network is disclosed. A body of the detonator junction includes a chamber for receiving a detonator. A retaining member, attached to the body, creates a slot for retaining one or more transmission lines proximate an explosive output region of a detonator disposed in the chamber. A limiting member, attached to the retaining member, traverses an imaginary longitudinal extension of the slot and limits inadvertent removal of transmission lines from the slot. A clip may interlock with the detonator, which in turn may be locked into the chamber to ensure secure and proper placement of the detonator in the chamber. When the detonator is activated a transmission signal is initiated in transmission lines disposed within the slot.

SHOCK TUBE INITIATOR

A shock tube initiator (STI) for allowing the remote and/or manual initiation of at least one shock tube, typically two shock tubes is disclosed. The STI consists of: a) at least one coupling 8, connected to a shock tube containing a shot shell primer that upon firing initiates burning of the shock tube,b) a cockable mechanical firing mechanism 7 adjacent to the coupling 8 wherein the mechanical firing mechanism 7 is adapted to strike respective firing pins 9 within the couplings,c) a safety mechanism 15 adapted to allow the mechanical firing mechanism 7 to ignite said explosive charge only when the safety mechanism 15 is moved from a safe mode position to an armed position,d) a rotary solenoid valve 24, electrically connected to and energised by a remote controlled operating system, ande) an actuator 10 positioned between and engageable with the rotary electro-mechanical energising means 24 and the firing mechanism 7 and wherein said actuator 10 is adapted to be actuated either by the ...

Shock tube assembly

A signal transmission tube assembly includes a signal transmission tube, such as a coil of shock tube on a spool, having opposite terminal ends and containing a reactive material. The open terminal ends of the shock tube provide the sole exits for the signal generated therein and the sole entry points for contaminants. Sealing means seal both terminal ends of the signal transmission tube against escape from the assembly of the signal engendered by initiated reaction of the reactive material, and protects the interior of the signal transmission tube from contamination. The sealing means may be a releasable sealing means which can be actuated to release the transmission tube from it, thereby facilitating re-use of the sealing means. Further, the sealing means may comprise a surge chamber to relieve pressure engendered by reaction of the reactive material and thereby militate against rupture of the signal transmission tube and consequent release from the assembly of a signal. A signal-rupturable ...

Connector block having detonator-positioning locking means

A connector block (10) for connecting signal transmission lines in a blast initiation system includes a body member (12) having a channel (18) formed therein for receiving and retaining a detonator (20). A locking member (28) is mounted on the body member (12) in a first position aligned with, but displaced from, its locking position. The detonator (20) is inserted into the channel (18) of the connector block (10) and, if axially misaligned, is properly seated therein by moving the locking member (28) through a passageway (36) to both axially shift the detonator (20) to its seated position and engage the locking member (28) and the detonator with each other to secure both within the channel (18). A method of assembling a detonator (20) within the connector block (10) to provide a combination of detonator (20) and connector block (10) is also provided.

WATERPROOF EXPLOSIVE CAP FOR BLASTING PURPOSES.

MOLDED ARTICLE HAVING INTEGRAL DISPLACEABLE MEMBER OR MEMBERS AND METHOD OF USE

СОЕДИНИТЕЛЬНЫЙ БЛОК С БЛОКИРУЮЩИМИ СРЕДСТВАМИ ДЛЯ ПОЗИЦИОНИРОВАНИЯ ДЕТОНАТОРА

FIELD: blasting equipment, applicable for connection of lines for transmission of signal in blasting initiating devices. SUBSTANCE: the connecting unit has a body component, having a duct formed in it for reception and holding of the detonator. The locking element is installed in the body component in the first position combined with the locking position but shifted from it. The detonator is inserted in the duct of the connecting unit and, when aligned, is appropriately set in the duct by displacement of the locking element through the passage so as to displace the detonator in axis to the required position and engage the locking element and the detonator for their fastening in the duct. Provision is made for assembly of the detonator in the connecting unit for producing a combination of the detonator and connecting unit. EFFECT: enhanced reliability of connection of the detonator in the connecting unit and accuracy of its positioning. 38 cl, 17 dwg

НАДЕЖНОЕ СОЕДИНИТЕЛЬНОЕ УСТРОЙСТВО ДЛЯ ПЕРЕДАТЧИКА СИГНАЛА ИНИЦИИРОВАНИЯ ВЗРЫВА

FIELD: coupling devices for transmission of blast initiation signals, in particular, coupling device for confinement of detonator located at the end of the donor line for radiation of initiation signal into transmitting signal of coupling with the acceptor line for reception of this signal. SUBSTANCE: coupling device for setting the detonator to signal transmitting coupling to signal confinement line takes up the detonator in the sleeve line. The line catching element is coupled to the sleeve element and interacts with the sleeve element with formation of the contour of slot between them, where the signal receiving line is located. The slot dimensions and shape are made so as to impact a wavy shape to the signal receiving line. The coupling device may be used individually or in combination with a tail coupler so as to secure the donor line in the signal transmitting line to the detonator input wire. EFFECT: enhanced reliability of initiation signal transmission. 8 cl, 16 dwg СУСС ПЧ сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ "” 2 153 143. (51) МПК? 13) С2 Е 42 В 3/10, С 06 С 5/06 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98115296/02, 23.12.1996 (24) Дата начала действия патента: 23.12.1996 (30) Приоритет: 18.01.1996 Ш$ 08/576,004 (46) Дата публикации: 20.07.2000 (56) Ссылки: Ц$ 5171935 А, 15.12.92. 4$ 5398611 А, 21.03.95. 4$ 4495867 А, 29.01.85. СВ 2228185 А, 05.09.90. СВ 2177483 А, 21.01.87. 1$ 38781785 А, 22.04.15. СВ 2140137 А, 21.11.89. КЦ 2046285 СЛ, 20.10.35. КО 2005984 СЛ, 15.01.94. (85) Дата перевода заявки РСТ на национальную фазу: 18.08.1998 (86) Заявка РСТ: 1$ 96/20893 (23.12.1996) (87) Публикация РСТ: \М/О 97/26231 (24.07.1997) (98) Адрес для переписки: 103735, Москва, ул. Ильинка 5/2, ООО "Союзпатент", Ивановой О.Ф. (71) Заявитель: _ ДЗЕ ЭНСАИН-БИКФОРД КОМПАНИ (Ц5$) (72) Изобретатель: Сутула Дэниел П. (младший) (0$) (73) Патентообладатель: ДЗЕ ЭНСАИН-БИКФОРД КОМПАНИ (1$) (54) НАДЕЖНОЕ СОЕДИНИТЕЛЬНОЕ ...

РАЗВЕТВИТЕЛЬ ОГНЕВОГО ИМПУЛЬСА

Изобретение относится к средствам инициирования и передачи огневого импульса, в частности, к устройствам коммутации с разветвлением и инициированием огнепроводными шнурами. Может быть использовано при отбое горных пород скважинными и шпуровыми зарядами в горнодобывающей промышленности, а также для взрывных работ в шахтах, карьерах, разрезах. Разветвитель огневого импульса состоит из корпуса 1 с n-количеством передающих импульсы элементов 4, расположенных в радиальном направлении с рабочим направлением от центра, фиксирующего элемента 2, энергопреобразующего устройства, в корпусе 6 которого расположен заряд взрывчатого вещества (ВВ) 5 инициатора 3. Корпус разветвителя 1 снабжен расположенным над энергопреообразующим устройством и соосно установленным внутренним корпусом 8, внутри которого размещены отсекающий элемент 7 и инициатор 3. Корпус энергопреобразующего устройства 6 выполнен в виде стакана с зарядом ВВ 5 и контактирует с основанием корпуса разветвителя 1, а заряд ВВ 5 выполнен по ...

КОРПУС ДЕТОНАЦИОННОГО РЕЛЕ НИЗКОЭНЕРГЕТИЧЕСКОЙ СИСТЕМЫ ИНИЦИИРОВАНИЯ ВЗРЫВА

FIELD: blasting operations. SUBSTANCE: case of detonation relay of low-energy system for initiation of blast and surface connector for it are open for low- noise, time-controlled transmission of signal of initiation from source of signal initiation to assemblage of distant elements of blasting operations. Connector for this system incorporates case with duct formed in it to accommodate low-energy detonator. Element hooking tubes is formed on end of case to hold transmission tubes near end of duct. Claws are formed in duct to retain detonator. Positioning wedges are formed in duct to place detonator in position providing for transfer of energy. Omnidirectional transmission of signals is initiated in transmission tubes as reaction to activation of detonator for time-controlled transmission of initiation signal to elements of system of blasting operations located at some distances. EFFECT: enhanced reliability of detonation relay. 6 cl, 5 dwg $5014 0Сс ПЧ ГЭ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ "” 2 070 313 ' (51) МПК 13) Сл Е 420 1/04 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5010080/08, 04.11.1991 (30) Приоритет: 05.11.1990 Ш$ 07/608993 (46) Дата публикации: 10.12.1996 (56) Ссылки: Патент США М 3987732, кл. С 06С 5/06, 1976. (71) Заявитель: Дзе Энсайн-Бикфорд Компани (1$) (72) Изобретатель: Ричард Джозеф Мична[Цц$]|, Дж.Дональдсон Томас Ц$], Энтони Сендек[Ц$] (73) Патентообладатель: Дзе Энсайн-Бикфорд Компани (ЦЗ) (54) КОРПУС ДЕТОНАЦИОННОГО РЕЛЕ НИЗКОЭНЕРГЕТИЧЕСКОЙ СИСТЕМЫ ИНИЦИИРОВАНИЯ ВЗРЫВА (57) Реферат: Корпус детонационного реле низкоэнергетической системы инициирования взрыва и поверхностное соединение для таковой раскрываются для малошумной, управляемой по времени передачи сигнала инициирования от источника инициирования сигналов к совокупности находящихся на расстоянии элементов взрывных работ. Соединительный блок для этой системы содержит корпус, имеющий канал, образованный в нем, для приема ...

Соединительный блок разветвленной взрывной магистрали из неразрезного преимущественно низкоэнергетического шнура

Improvements in or relating to a blasting assembly

... 982,364. Blasting-detonators. CANADIAN INDUSTRIES Ltd. Oct. 31, 1963 [Nov. 13, 1962], No. 43057/63. Heading F3A. A blasting-detonator, primarily intended for the detonation in bore holes of mixtures of ammonium nitrate and non-explosive fuels, comprises a metal casing 1, a compressed charge 2 of explosive such as P.E.T.N., a primer 3, a sealing element 6 consisting of a solid cylinder of deformable metal having a core of an essentially gasless combustible composition, and an explosive connecting cord 8 crimped in position to abut the sealing element 6 and having a core containing from 0À1 to 18 grains of high explosive per foot of length. The casing may be of aluminium or copper, the primer 3 of lead azide and the core of sealing element 6 of compositions which fuse on burning, such as mixtures of lead dioxide and silicon or red lead and silicon. The element 6, held in casing 1 by crimping or be adhesive, is conveniently made by charging and compacting the combustible composition into a ...

A collar for attaching a connector to igniter cord

A collar for attaching a connector (the connector being attached by fuse cord to a detonator) to igniter cord used in mining operations comprises channelling means to lead water or ammonium nitrate solution away from the connector and igniter cord. A tubular moulded synthetic plastics collar has a securing portion 14 into which a hexagonal connector is sealed by a ring 22, and a fastening portion 16 with slots 24 or legs 25 for engaging the igniter cord. The said water or solution is channelled via seal 22, guiding notches 18 and shoulder 28 to flow directing ridges 26 or grooves (27). ...

Improvements in or relating to a shock tube arrangement

Improvements in or relating to explosive devices

... 833,974. Blasting and assemblies therefor. DU FONT DE NEMOURS & CO., E. I. Aug. 27, 1958 [Sept. 10, 1957], No. 27539/58. Classes 9(1) and 68(1) An explosive relay assembly comprises alength of sheathed detonating fuze cord on which is helically wound a similar fuze cord. Preferably the core 5 contains from 0.0021 to 0.021 grams per cm. of a crystalline, cap-sensitive, high-velocity detonating explosive such as PETN, RDX, TNT, lead azide and tetryl. The sheath 4 is preferably a ductile metal such as lead, tin, copper or aluminium. Rubber or fabric covered cord may also be used. The combined mass of the sheathing per unit length of the assembly is 11 to 120 times. the mass per unit length of either explosive core. It is stated that when the helical cord is detonated, the inner cord 3 will not detonate in the direction opposed to that in which the detonation wave travels in the helix. When there are no gaps between the turns of the helix, detonation of cord 3 does not initiate the helix, which ...

Booster

CONNECTION DEVICE FOR BLASTING SIGNAL TRANSMISSION TUBING

PROPAGATING DEVICE FOR LOW ENERGY FUSES

Improvements in or relating to non-detonating deflagrating explosive compositions and delay combustion train devices obtained therefrom

... 576,107. Explosives. PAYN, R. C., JONES, E., FLANDERS, J. S., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 23, 1942, No. 18250. [Class 9 (ii)] A non-detonating, deflagrating, black-powder type of explosive, especially suitable for fuze powder and gas-pressure cartridges and adapted to burn at unusually low temperatures without reduction of vigour, comprises a mixture of alkaline nitrate and charred carbonaceous ingredient, with or without sulphur, with an aldehyde-amine condensation product such, for example as is obtained by condensation of a primary aromatic amine with acetaldehyde in the presence of an acid. For a fuze, the mixture may be filled into a lead sheath which burns with the fuze at ordinary barometric pressure. Three examples are given.

SAFETY FUSE CORDS

... 1321526 Explosive compositions DYNAMIT NOBEL AG 19 Nov 1971 [20 Nov 1970] 53951/71 Heading C1D [Also in Division F3] An explosive charge constituting the core of a safety fuse cord comprises Nitropenta and a phlegmatizing agent selected from cryolite, alkali metal, alkaline earth metal and ammonium halides, sulphates, bicarbonates, carbonates and phosphates and alkaline earth metal oxides. At least 60% of the Nitropenta passes through a mesh screen of 0À074 mm. mesh. A preferred composition comprises Nitropenta and 5-15%, particularly 10%, of cryolite.

PYROTECHNIC COMPOSITION FOR DELAY CORDS

Transmission primer cap

Safety device against unintentional igniting of so-called Niederleistungsschnurzündvorrichtungen

VORRICHTUNG ZUM VERBINDEN VON SPRENGSCHNUR UND ZUENDER

VORRICHTUNG ZUM VERBINDEN VON SPRENGSCHNUR UND ZÜNDER

LOW ENERGY FINAL CORD.

PROCEDURE FOR THE PRODUCTION OF A PYROTECHNIC PRIMING CHARGE.

SIMULTANEOUS NONELECTRIC PRIMING ASSEMBLY AND METHOD

A priming assembly and a method are provided for coupling a plurality of detonators to at least one explosive through a plurality of transmission lines. The priming assembly may include a housing that receives the plurality of detonators and the plurality of transmission lines. In use, the plurality of transmission lines may communicate with the plurality of detonators within the housing to transmit explosive charges from the plurality of detonators to the at least one explosive. 118-. (canceled)19. A method for coupling a first detonator and a second detonator to at least one explosive , the method comprising the steps of:providing a housing that includes a first detonator receptacle, a second detonator receptacle, and a plurality of transmission line receptacles, the plurality of transmission line receptacles receiving a plurality of transmission lines;inserting the first detonator into the first detonator receptacle of the housing to communicate with the plurality of transmission lines;inserting the second detonator into the second detonator receptacle of the housing to communicate with the plurality of transmission lines; andcoupling the plurality of transmission lines to the at least one explosive.20. The method of claim 19 , further comprising the step of triggering the first and second detonators to generate an explosive charge from at least one of the first and second detonators claim 19 , the plurality of transmission lines simultaneously receiving the explosive charge.21. The method of claim 19 , further comprising the step of triggering the first and second detonators to generate an explosive charge from at least one of the first and second detonators claim 19 , the plurality of transmission lines conveying the explosive charge to the at least one explosive to detonate the at least one explosive.22. The method of claim 19 , wherein the inserting steps comprise inserting the first and second detonators into the housing radially inwardly of the plurality of ...

ENERGY TRANSFER DEVICE

An energy transfer device () is provided that is capable of transferring the energy output from one pyrotechnic device () to another device () for initiating firing thereof. Device () comprises a device housing () in which a deformable device insert () is received. Device insert () comprises a central passageway () for transmitting the output from a pyrotechnic device (), including energy, gasses, and/or solids, to another pyrotechnic device (). The passageway () conducts the pyrotechnic device output to a precise location on the second pyrotechnic device () where firing is most effectively initiated. The energy transfer device () may be employed as a part of a tool () used in well completion operations. 1. An energy transfer device configured to transfer the energy output from a first pyrotechnic device to a second pyrotechnic device for initiating firing of the second pyrotechnic device , said energy transfer device comprising:a metallic body comprising a forward section configured to be placed adjacent the first pyrotechnic device and an aft section configured to be placed adjacent the second pyrotechnic device,said metallic body further including an axial passageway extending therethrough, said passageway including a first segment extending through said body forward section and a second segment extending through said body aft section,said body forward section being deformable by the energy output from the first pyrotechnic device such that the diameter of said passageway first segment is narrowed thereby forming a constriction in said passageway.2. The energy transfer device according to claim 1 , wherein said body forward and aft sections are generally cylindrical claim 1 , said forward section having a larger outside diameter than said second section.3. The energy transfer device according to claim 1 , wherein said passageway first segment has a diameter claim 1 , prior to deformation claim 1 , that is less than the diameter of said passageway second segment.4 ...

Pyrotechnic delay composition

A pyrotechnic delay composition comprising at least one oxidant and at least one reducing agent. This composition comprises tungsten as the first reducing agent, a first oxidant consisting of triiron tetraoxide, and a second oxidant having an oxygen content greater than that of the first oxidant.

EXPLOSIVE ASSEMBLY SYSTEMS INCLUDING A LINEAR SHAPED CHARGE END PRIME CAP APPARATUS AND RELATED METHODS

Generally, embodiments of the invention can include a linear shaped charge (LSC) end cap coupling structure adapted for holding an initiator structure adapted to initiate a booster explosive material, the booster explosive material, and the LSC in abutting contact with each other. One embodiment includes a rubber body formed with cavities adapted to receive the LSC, booster, and initiator structure (e.g., detonation cord). One internal cavity can be formed with a plurality of flexible protrusions or fins which are oriented towards a center axis of the preferred embodiment of three cavities configured to impart an interference fit with the initiator structure. Methods related to the invention are also provided. 1. A coupling structure comprising:a body formed from an elastomeric material comprising a shaft end section and an opposing neck protrusion section, wherein said shaft end section and neck protrusion section are formed respectively with a first and second aperture that open into a first and second cavity section within said body, said first and second cavity sections open into each other, wherein said first cavity section is formed with a first interior cavity wall having a first distance between opposing sides of said first cavity section, wherein said second cavity section is formed with a second interior cavity wall having a second distance between opposing sides of said second cavity section, wherein the first distance is larger than the second distance;wherein said shaft end section is formed with a flexible interference fit adapted to receive and retain a linear shaped charge (LSC) up to a first force;wherein said second cavity section within said neck protrusion section is formed comprising a plurality of spaced apart protrusions or fins that extend a first distance away from said second cavity section's wall towards said common center axis, wherein said plurality of spaced apart protrusions or fins are adapted or formed to displace, securely grip, and ...

APPARATUS AND METHOD FOR BLASTING

The present invention provides an explosive method that improves on methods currently employed. The present invention provides for a safer, less expensive, and more portable explosive device. The elements of the present invention replace dynamite or similar explosives currently used in avalanche control and bore hole blasting of rock or other solids. The present invention comprises an apparatus and a method providing a much safer alternative employing a highly confined combustion reaction of a flammable vapor, whereas dynamite is a category 1.1 high explosive imbued with all the attendant safety and security concerns. The method of the present invention provides for an improved and safer method of blasting employing a highly confined combustion reaction of a flammable vapor instead of conventional explosives currently used. 1. An avalanche-controlling apparatus comprising:a container comprising an outer casing;a valve disposed in a portal that completely pierces said outer casing for admitting fuel and oxygen;ignitor wires that are disposed within said container; anda resistive element that is connected to said ignitor wires.2. The avalanche-controlling apparatus of further comprising an injector that is inserted in said valve.3. The injector of wherein said injector comprises:a plunger; anda hollow needle.4. The avalanche-controlling apparatus of wherein said ignitor wires are disposed in channels that completely pierce said casing5. The avalanche-controlling apparatus of wherein said ignitor wires are connected to a resistive element claim 1 , wherein said resistive element is disposed within said container.6. The avalanche-controlling apparatus of further comprising a detonator attached to said ignitor wires claim 1 , said detonator disposed exterior to said container.7. A method for controlling avalanches comprising:providing a container with an outer casing;disposing a valve in a portal that pierces the casing;admitting fuel and oxygen through the valve to ...

DETONATING CORD CLIP

A perforating gun that has a detonator section in which a window is formed is assembled by: disposing a detonating cord in an inner bore of the perforating gun; fixing a clip to a detonator; gripping the clip with an installation tool; inserting the clip laterally through the window of the detonator section using the installation tool; and attaching the clip to the detonator cord by pressing the clip against the detonator cord using the installation tool. The clip has a planar base, an opening formed in the base for receiving the detonator, and a pair of prongs extending from the base, wherein each prong of the pair of prongs extends from an edge of the base and has a gripping end. 1. A method for assembling a perforating gun that has a detonator section in which a window is formed , comprising:disposing a detonating cord in an inner bore of the perforating gun;fixing a clip to a detonator, wherein the clip has a planar base, an opening formed in the base for receiving the detonator, and a pair of prongs extending from the base, wherein each prong of the pair of prongs extends from an edge of the base and has a gripping end;gripping the clip with an installation tool;inserting the clip laterally through the window of the detonator section using the installation tool; andattaching the clip to the detonator cord by pressing the clip against the detonator cord using the installation tool.2. The method of claim 1 , wherein the planar base and prongs form a triangular shape.3. The method of claim 1 , wherein the prongs are resilient and expandable to form a gap claim 1 , and further comprising passing the detonating cord through the gap.4. The method of claim 1 , further comprising fixing the detonator to the detonator clip with a fastening element.5. The method of claim 1 , wherein a contact between the detonator and the detonating cord is between the base and the gripping ends.6. The method of claim 1 , wherein the clip orients the detonator cord substantially parallel ...

TRUNKLINE DELAY DETONATOR AND BLAST-TRIGGERING DEVICE USING SAME

The present disclosure relates to a trunkline delay detonator and a blast-triggering device using the same. In the blast-triggering device, a trunkline delay detonator is inserted into a connector in such a manner that a plurality of shock tubes connected to a detonator for initiating an explosive are interposed between the connector and the trunkline delay detonator, so that an explosion signal is applied to the shock tubes by detonation of the trunkline delay detonator. In the blasting detonator, close contact between the outer surface of the trunkline delay detonator and the shock tubes is improved, whereby energy lost in an explosion is reduced and an explosion signal is stably and uniformly applied to the shock tubes by using powder which has a weak explosive power and is relatively insensitive compared to conventional powders. 1. A trunkline delay detonator , configured such that a plurality of shock tubes is in contact with a surface thereof , the plurality of shock tubes being connected to a detonator for initiating an explosive so that an explosion signal is applied to the plurality of shock tubes by detonation of the trunkline delay detonator , the trunkline delay detonator comprising:a detonator casing member having an insertion space therein in a longitudinal direction thereof, the insertion space having an open lower end;a base charge member inserted into an upper end side of the insertion space in the detonator casing member;a delay line member inserted into the insertion space in the detonator casing member and positioned under the base charge member, and in which an ignition retardant is provided;a plug line member inserted into the insertion space in the detonator casing member and positioned under the delay line member; anda detonation tube inserted into an inside of the plug line member so that one end of the detonation tube is positioned up to an upper end of the plug line member, and in which an explosive is inserted.2. The trunkline delay ...

Energy transfer device

An energy transfer device ( 10 ) is provided that is capable of transferring the energy output from one pyrotechnic device ( 52 ) to another device ( 78 ) for initiating firing thereof. Device ( 10 ) comprises a device housing ( 12 ) in which a deformable device insert ( 14 ) is received. Device insert ( 14 ) comprises a central passageway ( 34 ) for transmitting the output from a pyrotechnic device ( 52 ), including energy, gasses, and/or solids, to another pyrotechnic device ( 78 ). The passageway ( 34 ) conducts the pyrotechnic device output to a precise location on the second pyrotechnic device ( 78 ) where firing is most effectively initiated. The energy transfer device ( 10 ) may be employed as a part of a tool ( 44 ) used in well completion operations.

METHOD AND DEVICE

A method of generating electricity which comprises forming a galvanic cell comprising two electrodes in contact with an ionic conductor, wherein the ionic conductor comprises an explosive composition or is derived from an explosive composition. 1. A method of generating electricity which comprises forming a galvanic cell comprising two electrodes in contact with an ionic conductor , wherein the ionic conductor comprises an explosive composition or is derived from an explosive composition.2. A method of conducting a blasting operation in which electricity required for operation of a device employed in the operation is generated by forming a galvanic cell comprising two electrodes in contact with an ionic conductor , wherein the ionic conductor is an explosive composition or derived from an explosive composition.3. The method of claim 1 , wherein the ionic conductor is an explosive composition having a conductivity of at least 0.1 Sm.4. The method of claim 1 , wherein the explosive composition is doped with an additive in order to increase the electrical conductivity of the explosive composition.5. The method of claim 1 , wherein the explosive composition is caused to undergo a physical or chemical transformation in order to increase its electrical conductivity and provide the ionic conductor.6. The method of claim 1 , wherein the explosive composition is an emulsion explosive comprising droplets comprising an electrolyte in a matrix of a fuel phase claim 1 , and wherein a demulsifier is contacted with emulsion explosive between the electrodes in order to produce an ionic conductor between the electrodes.7. The method of claim 1 , wherein the explosive composition comprises ammonium nitrate and the ionic conductor is formed by dissolution of ammonium nitrate in a solvent.8. The method of claim 1 , wherein electricity is generated at a current of from 0.1 mA to 10 mA and at a voltage of from 1V to 5V.9. The method of claim 2 , wherein the electricity that is generated ...

USE OF LIQUID AND GEL MONOPROPELLANTS FOR WELL STIMULATION

An apparatus and process for fracturing wells is provided. In one example, an apparatus includes an electric liquid monopropellant device including a volume of electric liquid monopropellant and a detonation cord in proximity to the electric liquid monopropellant device to ignite the volume of electric liquid monopropellant upon activation of the detonation cord. The detonation cord is adapted to ignite the electric liquid monopropellant at pressures exceeding 200 psi, and in some examples, exceeding 500 or 1,000 psi. The detonation cord can be wrapped around the electric liquid monopropellant device in a variety of configurations to increase combustion rates and/or shape the event pulse of the combustion. 1. An apparatus for fracturing wells , comprising:an electric liquid monopropellant device including a volume of electric liquid monopropellant, anda detonation cord in proximity to the electric liquid monopropellant device to ignite the volume of electric liquid monopropellant upon activation of the detonation cord.2. The apparatus of claim 1 , wherein the detonation cord is adapted to ignite the electric liquid monopropellant at pressures exceeding 200 psi.3. The apparatus of claim 1 , wherein the electric liquid monopropellant operable to combust at temperatures less than 300 degrees Celsius.4. The apparatus of claim 1 , wherein the detonation cord is wrapped around the electric liquid monopropellant device.5. The apparatus of claim 1 , further comprising a plurality of electric liquid monopropellant devices disposed within a well tool claim 1 , and the plurality of electric liquid monopropellant devices in proximity to the detonation cord.6. The apparatus of claim 1 , further comprising at least one shaped charge device claim 1 , the at least one shaped charge device in proximity to the detonation cord to combust upon activation of the detonation cord.7. The apparatus of claim 6 , wherein the at least one shaped charge device and the electric liquid ...

CONDUCTIVE SHOCK TUBE

A shock tube for propagating and initiating a signal to an explosive charge which includes at least first and second elongate flexible conductors on a body of the detonator to enable two-way communication between the explosive charge and a blasting machine thereby to confirm the status of the detonator prior to sending a fire signal. 1101012262812. A shock tube () for propagating an initiating signal to an explosive charge , the shock tube () including a body () that is connectable to a blasting machine and at least first and second elongate flexible conductors ( , ) on or in the body () which enable two-way communication between the explosive charge and the blasting machine.2102628. A shock tube () according to wherein each conductor ( claim 1 , ) is made from a stretchable electrically conducting material.310. A shock tube () according to wherein the material is selected from an organic/polymeric conductive material claim 2 , a metal oxide-based material or a mixture of an organic/polymeric conductive material and a metal oxide-based material.4102628222420. A shock tube () according to wherein each conductor ( claim 1 , ) is printed on respective first and second layers ( claim 1 , ) of material that surround an energy propagating core ().510262220282422. A shock tube () according to wherein the first conductor () is printed on the first layer () of material that surrounds the energy propagating core () and the second conductor () is printed on the second layer () of material which surrounds the first layer () of material.61034381246482628363650522628. A shock tube () according to which is coupled to a connecting member () which includes a cap () attached to an end of the body () and two contacts ( claim 1 , ) which are respectively electrically connected to the first and second conductors ( claim 1 ,) claim 1 , and a connector () on the explosive charge claim 1 , wherein the connector () has first and second conductive surfaces ( claim 1 , ) respectively in ...

Self-Igniting Assembly

Embodiments are described for a self-igniting assembly having a main portion with a match-like component affixed thereto. A flammable member such as a wick or match-like member is in communication with the match-like component. A handle permits the user to grip the main portion and tug the main portion to impart friction and a chemical reaction between the match-like component to ignite the flammable member. This assembly may be provided with a number of ignitable device such as logs, fire starters, fireworks, or candles. 1. A self-igniting assembly comprising:a. a main portion;b. at least one flammable member at least partially disposed in the main portion; andc. an ignition assembly in ignitable communication with the flammable member, wherein the ignition assembly ignites the flammable member to produce a flame thereon.2. The assembly of claim 1 , wherein the ignition assembly further comprises:a. a cavity within the main portion, wherein the cavity is configured to at least partially receive the flammable member and a handle portion;b. an ignition surface separated from the flammable member by a safety point disposed on the flammable member; andc. at least one match-like component disposed between the flammable member and the ignition surface.3. The assembly of claim 1 , wherein the flammable member is a wick.4. The assembly of claim 1 , wherein the flammable member is a match-like member.5. The assembly of claim 1 , wherein the main portion is foldable to define the cavity.6. The assembly of claim 1 , wherein the ignition surface is provided as red phosphorus and potassium chlorate claim 1 , wherein the red phosphorous and potassium chlorate are separated by the safety point.7. The assembly of claim 1 , wherein the flammable member has an end provided with an adhesive or fastener claim 1 , wherein the adhesive or fastener permits the engagement between the assembly and an ignitable device.8. The assembly of claim 7 , wherein the ignitable device is a fire log.9 ...

REACTIVE MATERIALS FOR MANIPULATING PROPAGATION RATES AND A RESULTING CHEMICAL TIME DELAY

The present invention is directed to embodiments of reactive material (RM) and an associated chemical time delay that includes an RM, according to an embodiment of the present invention. One embodiment includes a delay material that is an RM patterned on a substrate using lithographic techniques. Another embodiment includes a delay material that is an RM deposited on a patterned substrate such as a mesh. The present invention also includes a chemical time delay that includes either embodiment of the delay material, or any variation on the delay material that would be known to or conceivable to one of skill in the art. 1. A material for manipulating propagation rates of an exothermic reaction comprising:a reactive material, wherein the reactive material is configured for discontinuous propagation.2. The material of wherein patterned breaks are connected by an inert material.3. The material of further comprising a tube that is sealed at both ends claim 1 , wherein the reactive material is reacted within the tube.4. The material of wherein a thickness of the reactive material is varied to manipulate the propagation rate.5. A material for manipulating propagation rates of an exothermic reaction comprising:a reactive material, wherein the reactive material comprises discontinuities; andwherein the discontinuities comprise patterned breaks between a first segment of the reactive material and a subsequent segment of the reactive material, and wherein the patterned breaks are patterned lithographically.6. The material of wherein patterned breaks are connected by an inert material.7. The material of further comprising a tube that is sealed at both ends claim 5 , wherein the reactive material is reacted within the tube.8. The material of wherein a thickness of the reactive material is varied to manipulate the propagation rate.9. A material for manipulating propagation rates of an exothermic reaction comprising:a reactive material, wherein the reactive material comprises ...

Detonator sensor assembly

A sensor assembly for use in actuating an electronic detonator in response to a shock tube event propagated through a shock tube, the sensor assembly including support, and at least one sensor on a surface of the support, the support being configured to position the at least one sensor displaced laterally from a line of action of the shock tube event.

Heat transfer initiator

A non-detonating heat transfer initiator. A representative heat transfer initiator is in the form of a heat transfer control medium, having a heat input portion and a heat output portion, and a non-detonating autoignition material, having an autoignition temperature, in thermal contact with the heat output portion. When heat is applied to the heat input portion, a transfer of heat through the heat transfer control medium to the heat output portion results, heating the heat output portion, such that, upon application of a sufficient amount of heat to the heat input portion, the heat output portion is heated to the autoignition temperature of the non-detonating autoignition material, igniting the non-detonating autoignition material ignites, thus producing a non-detonating thermal output.

Pyrotechnic delay device for mild detonating cord

Destruct system improvement

A pyrotechnic cord assembly is provided with voids for safety in handling and storage. The voids are filled with bridging pyrotechnic material at the time of final assembly.

Shock initiator device for initiating a percussion primer

A shock wave initiator device for initiating a percussion primer includes a primary explosive, an attenuation body, and a deflagrating member. The primary explosive is of a type which upon ignition is capable of detonation for producing a shock wave. The attenuation body is a block or core of material which at its exterior engages a cup of a primer enclosing primer mix and at its interior has a cavity housing the primary explosive. The body is capable of transmitting the shock wave produced by the detonation to the primer cup. The deflagrating member is preferably a rapid burn cord with one end communicating with the primary explosive and an opposite end communicating with a source of input energy for igniting the cord to cause burning thereof which, in turn, ignites and detonates the primary explosive.

Initiator

Device for transferring energy output from one pyrotechnic device to another

An energy transfer device ( 10 ) is provided that is capable of transferring the energy output from one pyrotechnic device ( 52 ) to another device ( 78 ) for initiating firing thereof. Device ( 10 ) comprises a device housing ( 12 ) in which a deformable device insert ( 14 ) is received. Device insert ( 14 ) comprises a central passageway ( 34 ) for transmitting the output from a pyrotechnic device ( 52 ), including energy, gasses, and/or solids, to another pyrotechnic device ( 78 ). The passageway ( 34 ) conducts the pyrotechnic device output to a precise location on the second pyrotechnic device ( 78 ) where firing is most effectively initiated. The energy transfer device ( 10 ) may be employed as a part of a tool ( 44 ) used in well completion operations.

Energy transfer device

An energy transfer device ( 10 ) is provided that is capable of transferring the energy output from one pyrotechnic device ( 52 ) to another device ( 78 ) for initiating firing thereof. Device ( 10 ) comprises a device housing ( 12 ) in which a deformable device insert ( 14 ) is received. Device insert ( 14 ) comprises a central passageway ( 34 ) for transmitting the output from a pyrotechnic device ( 52 ), including energy, gasses, and/or solids, to another pyrotechnic device ( 78 ). The passageway ( 34 ) conducts the pyrotechnic device output to a precise location on the second pyrotechnic device ( 78 ) where firing is most effectively initiated. The energy transfer device ( 10 ) may be employed as a part of a tool ( 44 ) used in well completion operations.

Delay detonator device

A reliable delay detonator device is disclosed which is thermally and chemically stable and which is also insensitive to mechanical shock and electrostatic charge. The device can be made with differing time delays and can be interconnected with other detonator devices for achieving multiple delay characteristics. A modification of the device is particularly suited to high temperature use. None of the devices contain any primary explosives, the device relying upon pyrotechnic delay materials and secondary explosives.

Delay detonator device

A reliable delay detonator device is disclosed which is thermally and chemically stable and which is also insensitive to mechanical shock and electrostatic charge. The device can be made with differing time delays and can be interconnected with other detonator devices for achieving multiple delay characteristics. A modification of the device is particularly suited to high temperature use. None of the devices contain any primary explosives, the device relying upon pyrotechnic delay materials and secondary explosives.

Energy transmitting device

FIELD: blasting works. SUBSTANCE: energy transmitting device is capable of the released energy transmission from the first pyrotechnic device to the second pyrotechnic device for the blast initiation of the second pyrotechnic device. The device comprises the metal case, which has the front section, capable of the adjacent to the first pyrotechnic device installation, and the rear section capable of the adjacent to the second pyrotechnic device installation. The end-to-end channel passes through the metal case. This channel comprises the first zone, which goes through the case front section, and the second zone, which goes through the case rear section. The case front section has the exposed face, which is capable of the adjacent to the first pyrotechnic device installation and of the intake of the released energy from the first pyrotechnic device and of the deformation by the released energy from the first pyrotechnic device for the narrowing formation in the end-to-end channel in its first zone. EFFECT: invention allows for the output energy reliable transmission from one retarded-action fuse to another. 32 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 634 960 C2 (51) МПК F42C 15/31 (2006.01) E21B 43/11 (2006.01) C06C 5/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2014142999, 15.03.2013 (24) Дата начала отсчета срока действия патента: 15.03.2013 Дата регистрации: (72) Автор(ы): ГРИЛИ Уилльям (US), КУЛЛ Раиво (US), СУХУ Эд (US) Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: RU 2215127 C2, 27.10.2003. RU 24.04.2012 US 61/637,541 (45) Опубликовано: 08.11.2017 Бюл. № 31 2233428 C1, 27.07.2004. RU 2186951 C1, 10.08.2002. RU 97107987 A, 20.05.1999. US 4135454 A1, 23.01.1979. UA 53636 C2, 15.02.2003. US 2010000789 A1, 07.01.2010. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.11.2014 (86) Заявка PCT: US 2013/032243 (15.03. ...

Pyrotechnical retarding composition

FIELD: pyrotechnics.SUBSTANCE: pyrotechnical retarding composition contains powder of silicon Si as fuel, lead dioxide PbO2or lead oxide beads Pb3O4as oxidising agent. Ingredients in the composition are taken in the following ratio, wt%: silicon Si 45-60 and lead dioxide PbO240-55 or silicon Si 30-50 and lead reddish Pb3O450-70, at that specific surface of fuel is (0.6-1.8) m2/g, specific surface area of powder of lead dioxide PbO2- (0.2-1.0) m2/g and specific surface of powder of lead minnow Pb3O4- (0.2-0.6) m2/g.EFFECT: obtaining a predetermined burning time of a pyrotechnic retarding composition in retarders for different types of devices and high stability of burning rate when changing batches of initial components.1 cl, 6 ex, 4 tbl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 739 405 C1 (51) МПК C06B 33/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C06B 33/00 (2020.08); C06C 5/06 (2020.08); C06C 15/00 (2020.08) (21)(22) Заявка: 2020121840, 26.06.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: 23.12.2020 (45) Опубликовано: 23.12.2020 Бюл. № 36 2 7 3 9 4 0 5 R U (56) Список документов, цитированных в отчете о поиске: GB 981863 A, 27.01.1965. "Measuring and modelling of pyrotechnic time delay element burn rates" by Yolandi Cecile Montgomery. Department of Chemical Engineering Faculty of Engineering, Built Environment and Information Technology University of Pretoria, Pretoria. February 2018, с.7, 25-27, 32-34, 83-84, фиг.3-4, 314, 5-8, табл. 3-1. "Современная (см. прод.) (54) ПИРОТЕХНИЧЕСКИЙ ЗАМЕДЛИТЕЛЬНЫЙ СОСТАВ (57) Реферат: Изобретение относится к области удельная поверхность горючего составляет (0,6пиротехники. Пиротехнический замедлительный 1,8) м2/г, удельная поверхность порошка диоксида состав содержит порошок кремния Si в качестве свинца PbO2 - (0,2-1,0) м2/г и удельная горючего, диоксид свинца PbO2 или свинцовый поверхность порошка свинцового сурика Pb3O4 сурик Pb ...

Extensible member for explosive charge with detonator igniter

FIELD: initiating devices, in particular, extensible devices for explosive charges having a detonator igniter with lowering detonating cords at blasting. SUBSTANCE: the extensible member has a basic gripping device and a protective tube. The basic gripping device has a means for holding the supply wire, designed for placement of the detonator supply wire in it so that the signal from the detonating cord would be transmitted to it. If desired, the extensible member is provided with a detonator to the extensible member. The detonator holder has dimensions and configuration providing for holding of detonators of various length in the proper position, providing for initiation of the explosive charge device. Placing the protective tube on the extensible member, explosive charge devices with the detonator igniter of various types may be used with detonating cords of various types, and the extensible member, having a protective tube suitable for the selected detonating cord, may be inserted in the explosive charge device with a detonator igniter. EFFECT: enhanced reliability of detonator connection to the detonating cord, and enhanced serviceability of it. 8 cl, 13 dwg ССУОЭ)ЕсС ПЧ сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ “” 2 160 423 ' 57 МК’ | 42 В 3/10, С 06 С 5/06 13) С2 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98115310102, 03.01.1997 (24) Дата начала действия патента: 03.01.1997 (30) Приоритет: 16.01.1996 Ш$ 08/575,244 (46) Дата публикации: 10.12.2000 (56) Ссылки: Ц$ 4796533 А, 10.01.1989. 4$ 4383484 А, 17.05.1983. 4$ 4799428 А, 24.10.1989. 5Ц 468904, 22.10.1975. 4$ 4495867 А, 29.01.1985. ($ 4637312 А, 20.01.1987. 4$ 4334416 А, 15.06.1982. (85) Дата перевода заявки РСТ на национальную фазу: 17.08.1998 (86) Заявка РСТ: 1$ 97100697 (03.01.1997) (87) Публикация РСТ: \М/О 97/26232 (24.07.1997) (98) Адрес для переписки: 103735, Москва, ул. Ильинка 5/2, ООО "Союзпатент", Захаровой И.М. (71) Заявитель: _ ДЗЕ ЭНСАИН- ...

Pyrotechnical retarding composition

FIELD: pyrotechnics. SUBSTANCE: pyrotechnical retarding composition contains powder of silicon Si as fuel, lead dioxide PbO 2 or lead oxide beads Pb 3 O 4 as oxidising agent. Ingredients in the composition are taken in the following ratio, wt%: silicon Si 45-60 and lead dioxide PbO 2 40-55 or silicon Si 30-50 and lead reddish Pb 3 O 4 50-70, at that specific surface of fuel is (0.6-1.8) m 2 /g, specific surface area of powder of lead dioxide PbO 2 - (0.2-1.0) m 2 /g and specific surface of powder of lead minnow Pb 3 O 4 - (0.2-0.6) m 2 /g. EFFECT: obtaining a predetermined burning time of a pyrotechnic retarding composition in retarders for different types of devices and high stability of burning rate when changing batches of initial components. 1 cl, 6 ex, 4 tbl, 6 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 739 405 C9 (51) МПК C06B 33/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) СКОРРЕКТИРОВАННОЕ ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ Примечание: библиография отражает состояние при переиздании (52) СПК C06B 33/00 (2020.08); C06C 5/06 (2020.08); C06C 15/00 (2020.08) (21)(22) Заявка: 2020121840, 26.06.2020 26.06.2020 Приоритет(ы): (22) Дата подачи заявки: 26.06.2020 (15) Информация о коррекции: Версия коррекции №1 (W1 C1) (48) Коррекция опубликована: Адрес для переписки: 607188, Нижегородская обл., г. Саров, пр. Мира, 37, ФГУП "РФЯЦ-ВНИИЭФ", начальнику управления интеллектуальной собственности и научно-технической информации Миронову В.Е. R U 2 7 3 9 4 0 5 (56) Список документов, цитированных в отчете о поиске: GB 981863 A, 27.01.1965. "Measuring and modelling of pyrotechnic time delay element burn rates" by Yolandi Cecile Montgomery. Department of Chemical Engineering Faculty of Engineering, Built Environment and Information Technology University of Pretoria, Pretoria. February 2018, с.7, 25-27, 32-34, 83-84, фиг.3-4, 314, 5-8, табл. 3-1. "Современная (см. прод.) (54) ПИРОТЕХНИЧЕСКИЙ ЗАМЕДЛИТЕЛЬНЫЙ СОСТАВ (57) Реферат: Изобретение относится к ...

Device and method for explosion

本发明提供了一种改进目前采用的方法的爆炸方法。本发明提供了一种更安全、更便宜和更便携的爆炸装置。本发明的元件代替目前用于雪崩控制和岩石或其他固体的钻孔爆破的炸药或类似爆炸物(32)。本发明包括装置(10)和提供更安全的替代方案的方法，该替代方案采用可燃蒸汽的高度限制的燃烧反应，而炸药是1.1类高爆炸物，其充满了所有伴随的安全和安全保证问题。本发明的方法提供了一种改进的和更安全的爆破方法，采用可燃蒸汽的高度限制的燃烧反应代替目前使用的常规爆炸物。

PYROTECHNIC DELAY DEVICE

L'invention concerne un dispositif (10) pyrotechnique de retard à l'allumage entre une mèche ou un allumeur et un dispositif à allumer comprenant une chambre (18) muni d'un premier orifice (26) recevant au moins une mèche ou un allumeur; un élément (12) communiquant par un second orifice (22, 53, 64) avec un espace (20) recevant le dispositif à allumer; et une piste contenant un matériau inflammable brûlant régulièrement communiquant avec la chambre par le premier orifice et avec l'espace par le second orifice, la chambre pouvant coulisser par rapport à l'élément et/ ou inversement de façon à modifier la longueur de la piste entre les premier et second orifices pour modifier la durée du retard à l'allumage. The invention relates to a device (10) for pyrotechnic ignition delay between a wick or an igniter and a device to ignite comprising a chamber (18) provided with a first orifice (26) receiving at least one wick or an igniter ; an element (12) communicating through a second orifice (22, 53, 64) with a space (20) receiving the device to be ignited; and a track containing a regularly burning flammable material communicating with the chamber through the first orifice and with the space through the second orifice, the chamber being able to slide relative to the element and / or vice versa so as to modify the length of the track between the first and second ports to modify the duration of the ignition delay.

IGNITION SYSTEM FOR A PYROTECHNIC COMPOSITION.

Le secteur technique de l'invention est celui des systèmes d'allumage pour les compositions pyrotechniques. Le système d'allumage selon l'invention comprend un relais d'allumage (4), disposé dans un boîtier (3), et qui est en contact avec la composition pyrotechnique (2), il est caractérisé en ce que le boîtier (3) est fermé par un treillis (5) en contact avec une composition sensible à la flamme (6) elle même en contact avec le relais d'allumage (4). Application à l'allumage des compositions pyrotechniques à retard. The technical sector of the invention is that of ignition systems for pyrotechnic compositions. The ignition system according to the invention comprises an ignition relay (4), arranged in a casing (3), and which is in contact with the pyrotechnic composition (2), it is characterized in that the casing (3 ) is closed by a mesh (5) in contact with a flame-sensitive composition (6) itself in contact with the ignition relay (4). Application to the ignition of delayed pyrotechnic compositions.

CARTRIDGE INCLUDING IGNITION CORDS

L’invention a pour objet une cartouche (1) comprenant un projectile (2) solidaire d’un étui (3) renfermant une charge propulsive (4) et fermé par un culot (5). Un dispositif d’allumage de la charge propulsive (4) comprend au moins deux cordeaux d’allumage énergétiques (10) s’étendant entre un moyen d’initiation (8) solidaire d’une partie arrière de l’étui (3) et le projectile (2). Dans cette cartouche (1) les cordeaux (10) sont réunis au niveau de leur partie arrière de façon à former un toron (11), et ils sont fixés par au moins un moyen d’attache (13) solidaire de la cartouche, le toron (11) étant lié au moyen d’initiation (8) par un presse étoupe (14) permettant tout à la fois d’immobiliser radialement et axialement les cordeaux (10) par rapport au moyen d’initiation (8) tout en maintenant les cordeaux (10) tendus entre leur moyen d’attache (13) et le moyen d’initiation (8). Figure à publier avec l’abrégé : Fig. 1 The subject of the invention is a cartridge (1) comprising a projectile (2) secured to a case (3) containing a propellant charge (4) and closed by a base (5). A device for igniting the propellant charge (4) comprises at least two energetic ignition cords (10) extending between an initiation means (8) integral with a rear part of the case (3) and the projectile (2). In this cartridge (1) the cords (10) are joined together at their rear part so as to form a strand (11), and they are fixed by at least one attachment means (13) integral with the cartridge, the strand (11) being linked to the initiation means (8) by a stuffing box (14) making it possible both to immobilize the cords (10) radially and axially with respect to the initiation means (8) while maintaining the cords (10) stretched between their attachment means (13) and the initiation means (8). Figure to be published with abstract: Fig. 1

SLOW COMBUSTION PYROTECHNIC COMPOSITION

The invention concerns a slow combustion composition for long pyrotechnic delays. It comprises an oxidant of the perchlorate type in a mass percentage ranging between 75 and 91 %, a reducer selected among aromatic hydrocarbons in a mass percentage ranging between 5 and 20 %, 0 to 6 % by volume of a binder and 0 to 5 % by volume of a nanometric silica powder. The invention is useful for making cords or wicks for combustion rate delays of the order of mm/s.

Initiator for a transmission tube

A transmission tube initiator comprises a body having a passageway formed therein for receiving and retaining an initiator charge. A holder holds a side of a transmission tube in close proximity to the charge. The charge provides an initiation signal which penetrates the transmission tube and initiates a reactive substance contained in the transmission tube.

Low-power primer and method of its manufacture

FIELD: blasting. SUBSTANCE: low-power primer has a plastic tube with a channel made up at least of two layers of plastic material. The first layer is positioned closer to the channel, and the other one-outside the first layer. The tube channel accommodates an active material maintaining the shock wave in the channel after ignition. At least the second layer of the tube has the main part of polymer resin axially oriented by expansion to a degree of orientation of more than 20% and less than 90%. The degree of axial orientation of polymer of the first layer does not exceed the degree of orientation of the second layer by more than 10%. The first layer is formed as a tube by extrusion of plastic material of this layer. Active material is introduced into the tube channel. Then restricted expansion of the first layer of the tube is effected for imparting a degree of orientation of not more than 10% to it. The second layer of the tube is formed around the first layer by extrusion of plastic material of the second layer at a low degree of orientation of the first layer. Then cold expansion of the first and second layers together is accomplished. EFFECT: enhanced axial and radial strength characteristics of primer tube, whose inner layer serves to provide radial strength, and the outer layer provides axial strength. 71 cl, 7 dwg, 3 ex СбУТСЬсС ПЧ ГЭ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2 124 492” Сл (51) МПК С 06 С 5/04, В 29 С 47/06 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 95112529/02, 10.11.1993 (30) Приоритет: 17.11.1992 ЗЕ 9203459-4 (46) Дата публикации: 10.01.1999 (56) Ссылки: 4$ 4607573, 1986. 4$ 373967, 1973. Ц$ 3590739, 1971. 4$ 4328153, 1982. 0$ 4817613, 1989. 4$ 466474, 1987. 4$ 4838165, 1990. ЕР 327219, 1990. ЕР 384630, 1989. РСТ 81/06954, 1987. (85) Дата перевода заявки РСТ на национальную фазу: 17.06.95 (86) Заявка РСТ: ЗЕ 9300954 (10.11.93) (87) Публикация РСТ: \/О 94/11324 (26.05.94) (98) Адрес для ...

Pyrotechnic composition for delay cords.

HIGHLY EXPLOSIVE PARTICULAR COMPOSITION AND DETONATING CORD WITH APPLICATION

La présente invention concerne le domaine des explosifs et plus spécialement celui des cordons détonants. Le cordon détonant selon l'invention comprend une gaine 2, 4, 5, 6 et un coeur central 1 constitué par une substance particulaire hautement explosive qui a été traitée par un ester d'alkyle d'un acide aromatique ou aliphatique possédant un point de fusion au plus égal à - 10 degrés C. Le cordon détonant de l'invention permet notamment la transmission d'une détonation alors que ledit cordon a été immergé dans l'eau pendant plusieurs jours. The present invention relates to the field of explosives and more especially that of detonating cords. The detonating cord according to the invention comprises a sheath 2, 4, 5, 6 and a central core 1 constituted by a highly explosive particulate substance which has been treated with an alkyl ester of an aromatic or aliphatic acid having a point of fusion at most equal to - 10 degrees C. The detonating cord of the invention allows in particular the transmission of a detonation while said cord has been immersed in water for several days.

IGNITION SYSTEM FOR A PYROTECHNIC COMPOSITION

Le secteur technique de l'invention est celui des systèmes d'allumage pour les compositions pyrotechniques. Le système d'allumage selon l'invention comprend un relais d'allumage (4), disposé dans un boîtier (3), et qui est en contact avec la composition pyrotechnique (2), il est caractérisé en ce que le boîtier (3) est fermé par un treillis (5) en contact avec une composition sensible à la flamme (6) elle même en contact avec le relais d'allumage (4). Application à l'allumage des compositions pyrotechniques à retard. The technical sector of the invention is that of ignition systems for pyrotechnic compositions. The ignition system according to the invention comprises an ignition relay (4), arranged in a housing (3), and which is in contact with the pyrotechnic composition (2), it is characterized in that the housing (3 ) is closed by a mesh (5) in contact with a flame-sensitive composition (6) itself in contact with the ignition relay (4). Application to the ignition of delayed pyrotechnic compositions.

PYROTECHNIC DELAY COMPOSITION

L'invention a pour objet une composition retard pyrotechnique comprenant au moins un oxydant et au moins un réducteur. Cette composition est caractérisée en ce qu'elle comporte du tungstène comme premier réducteur, un premier oxydant constitué par le tetraoxyde de trifer et un deuxième oxydant ayant une teneur en oxygène supérieure à celle du premier oxydant. The subject of the invention is a pyrotechnic delay composition comprising at least one oxidant and at least one reducing agent. This composition is characterized in that it comprises tungsten as first reducing agent, a first oxidant constituted by trifer tetraoxide and a second oxidant having an oxygen content higher than that of the first oxidant.

PYROTECHNIC DELAY COMPOSITION

L'invention a pour objet une composition retard pyrotechnique comprenant au moins un oxydant et au moins un réducteur. Cette composition est caractérisée en ce qu'elle comporte du tungstène comme premier réducteur, un premier oxydant constitué par le tetraoxyde de trifer et un deuxième oxydant ayant une teneur en oxygène supérieure à celle du premier oxydant. The subject of the invention is a pyrotechnic delay composition comprising at least one oxidant and at least one reducing agent. This composition is characterized in that it comprises tungsten as the first reducing agent, a first oxidant consisting of trifer tetraoxide and a second oxidant having an oxygen content greater than that of the first oxidant.

Reach-compliant pyrotechnic delayed-action composition and primer charge having variably settable performance parameters

The invention relates to a pyrotechnic delayed-action composition and primer charge made of REACh (Registration, Evaluation, Authorization and Restriction of Chemicals)-compliant components that are safe for humans and the environment. The delayed-action composition comprises at least one oxidant, at least one reducing agent, at least one filler and at least one mineral binder. The performance parameters thereof, in particular the burning time, can be set variably within a wide range. The composition clinkers on its own, thus preventing extinction at the front of the burning material even in dynamic conditions. The primer charge comprises at least one oxidant, at least one reducing agent, at least one filler and at least one mineral binder. It is easy to ignite and, due to its clinker structure, transfers its energy well to the compositions to be ignited. Since the delayed-action composition and the primer charge have the same structure, they can easily be combined and adapted to each other in delayed-action units. However, the composition and the charge can also be used separately. The use of the primer charge is not limited to delayed-action units.

METHOD, ASSEMBLY AND CONNECTOR BLOCK, FOR THE RETENTION OF AT LEAST A SHOCK WAVE TUBE, IN THE EXTREME OF DETONATOR OPERATION, UNDERSTANDS A BOX WITH A PLASTIC MATERIAL BODY THAT FLOWS AND IS ENDURED WITHIN THE HOLE,

Slow combustion pyrotechnic composition

The invention concerns a slow combustion composition for long pyrotechnic delays. It comprises an oxidant of the perchlorate type in a mass percentage ranging between 75 and 91 %, a reducer selected among aromatic hydrocarbons in a mass percentage ranging between 5 and 20 %, 0 to 6 % by volume of a binder and 0 to 5 % by volume of a nanometric silica powder. The invention is useful for making cords or wicks for combustion rate delays of the order of mm/s.

PYROTECHNICAL DEVICE WITH IGNITION DELAY

Initiating unit (modifications), sliding device (modifications), method for arrangement of detonator inlet and method for location of detonator inlet (modifications)

FIELD: blasting operations. SUBSTANCE: for transmission of non-electric initiating signals from the detonating cord of the master signal lines to the fuzes of the receiving line transmitting the signal the transmitting line is positioned in configuration of improved signal communication with the master line. The receiving line may form the detonator lead-in. The configuration of improved transmission of signals between the lead-in and detonating cord may be formed by arrangement of the input line with at least partially enveloping contact with the detonating cord or with a multiple adjoining contact with the detonating cord. Configuration of improved transmission of signals may be also attained for a detonator having at least two input lines with an adjoining contact with the detonating cord. The sliding device is designed for improvement of contact between the detonator lead-in and the acting cord. The sliding device has a holder for keeping the detonator and a supporting clamp with a through hole for the detonating cord. The means for holding the lead-in in the supporting clamp arranges the lead-in in the position of improved signal communication with the detonating cord, which may run through the through hole. EFFECT: enhanced safety. 28 cl, 18 dwg Геср9с ПЧ сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2161 291‘ (51) МПК? 13) С2 С 5/00 Е 42 В 3/10, Е 42 0 1/04, С 06 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98114848/02, 03.12.1996 (24) Дата начала действия патента: 03.12.1996 (30) Приоритет: 11.01.1996 Ш$ 08/548,813 (46) Дата публикации: 21.12.2000 (56) Ссылки: Ц$ Ве 30621, 26.05.1981. 4$ 4771694, 20.09.1988. СВ 22281685, 05.09.1990. КУ 2031899 СЛ, 27.03.1995. (85) Дата перевода заявки РСТ на национальную фазу: 11.08.1998 (86) Заявка РСТ: 1$ 96/19547 (03.12.1996) (87) Публикация РСТ: М/О 97/25297 (17.07.1997) (98) Адрес для переписки: 103735, Москва, ул. Ильинка 5/2, "Союзпатент", Захаровой И.М. (71) Заявитель: _ ...

Delay Charge and Element, and Detonator Containing Such a Charge

A pyrotechnic delay charge for providing delays in the millisecond and second ranges, comprising the components bismuth oxide as an oxidation agent and silicon as a fuel. The invention also relates to a pyrotechnic delay element having an enclosure containing the pyrotechnical delay charge, and to a detonator having a housing, ignition means disposed at one end of the housing, a base charge of a secondary explosive disposed at the other end of the housing and the pyrotechnic delay charge disposed therebetween.

Firing device for explosions

Pyrotechnic delay composition

A pyrotechnic delay composition for use in ignition delay devices, such as a tubular zinc element, or detonators comprises from about 20% to 40% (by mass) particulate silicon and from about 60% to 80% (by mass) ferric oxide, e.g. as a substantially 50:50 mixture by volume.

Fireworks fuse connector

A device for safely connecting the fuse (12, 14) of two firework devices (20 , 22) is provided. The device has a tubular member, or connector (10), having a first and second end. The ends of the connector are each adaptable to receiv e a fuse. When the device is in operation, two fuses (12, 14), each from a separate firework, are inserted into the connector (10). This ensures that t he flame from one fuse will be effectively transferred to the next. The device may also contain a primer (16) such as gunpowder within the interior of the connector to further ensure transmission of a flame from one fuse to the nex t.

Slider member for booster explosive charges

Initiator for a transmission tube

A transmission tube initiator comprises a body having a passageway formed therein for receiving and retaining an initiator charge. A holder holds a side of a transmission tube in close proximity to the charge. The charge provides an initiation signal which penetrates the transmission tube and initiates a reactive substance contained in the transmission tube.

Low energy bundles and methods for making them

Non-electric double delay borehole downline unit for blasting operations

A non-electric double delay borehole downline unit is provided for delaying transmission of an explosive signal down a borehole and also delaying initiation of the charge within the borehole after the signal has been received therein. The double delay unit comprises a length of flexible impulse propagating tubing having first and second ends and an impulse propagating hollow channel extending along the length thereof, a non-electric high strength blasting cap containing a first delay element connected to the first end for initiating a borehole explosive charge, an impulse amplifying and transmitting cap containing a second delay element connected to the second end and a protective block having a plurality of elongated apertures with one of said apertures fully and snugly receiving the amplifying cap therein.

Delay fuse compositions

Pyrotechnic delay element

Elemento de retardo pirotécnico caracterizado porque contiene una mezcla de composición iniciadora, una mezcla de composición retardadora y una mezcla de composición de encendido, donde las mezclas de composición iniciadora y de composición de encendido contienen al menos un 35 % en peso de boro, al menos un 15 % en peso de óxido de hierro (III) y al menos un 5 % en peso de perclorato de potasio, que se complementan entre sí hasta sumar el 100 % en peso, y la mezcla de composición retardadora contiene al menos un 5 % en peso de perclorato de potasio, al menos un 10 % en peso de óxido de titanio (IV), al menos un 25 % en peso de tungsteno y al menos un 1 % en peso de aluminio. Pyrotechnic retarding element characterized in that it contains a mixture of initiator composition, a mixture of retarder composition and a mixture of ignition composition, where the mixtures of initiator composition and ignition composition contain at least 35% by weight of boron, at least 15% by weight of iron (III) oxide and at least 5% by weight of potassium perchlorate, which complement each other to add 100% by weight, and the retardant composition mixture contains at least 5% by weight of potassium perchlorate, at least 10% by weight of titanium (IV) oxide, at least 25% by weight of tungsten and at least 1% by weight of aluminum.

Transmission tube connector

The present invention is directed to a connector for transmission tubes wherein a first initiated transmission tube transfers a signal to a second transmission tube within said connector.

Delay rate as well as element and detonator containing such rate

Shock tube initiating system for display fireworks

A system for initiating shock tube which has a low cost of manufacture, is relatively impervious to moisture, and initiates the shock tube reliably is described. The initiating system comprises a thermal input initiator device, a thermal enhancing output device, and a length of shock tube. The thermal input initiator device converts the thermal flame energy to percussive energy that travels as a signal wave along the shock tube at a speed of 6500 ft/sec. The signal wave hits the thermal enhancing output device and is converted back into thermal energy that is capable of reliably initiating display fireworks.

Method for interrupting explosive fuse in event of undesired detonation - has detonation running through fuse interrupted by movable dividing component.

Timed pyric chain apparatus for the ignition of pyrotechnical fireworks

Pyrotechnic charge composition and the use thereof in delay elements

ABSTRACT OF THE DISCLOSURE: The present invention relates to a pyrotechnic charge composition, which can be used to provided time fuses with delay intervals of the order of 150 ms and no overlaps between time steps, and which comprises antimony and potassium permanganate in a weight ratio of 33-45:55-65 and from 0.1 to 2.0% by weight of powdered light metal and/or silicon.

EXPLOSIVE COMPOSITION OF PARTICLE MATERIAL DESINSIBILIZED BY THE ACTION OF WATER

Firing device

A shock-tube firing device has an enclosure and at least two primer-ignition devices translatably carried within the enclosure. A threaded bore for each primer-ignition device is adjacent a forward end of the associated primer-ignition device and configured to receive a threaded shock-tube adapter. A trigger assembly is carried by the enclosure and comprises an actuation portion and a carrier portion, the actuation portion causing rearward motion of the carrier portion. A biasing element for each primer-ignition device causes forward motion of the associated primer-ignition device. A sear for each primer-ignition device causes compression of the associated biasing element during movement of the actuation portion, thereby compressing the biasing elements for causing forward motion of the primer-ignition devices.

Conductive shock tube

Explosive detonation system and method for the detonation of an explosive charge comprising an initiating device and a switching device that can detect a chemical compound as a switching property.

BONDING ELEMENT FOR A PYROTECHNIC FIRE-SETTING CHAIN OF A ENTERTAINMENT ARTIFICE

Slow combustion pyrotechnic composition.

A non-powder electric ignition head for quick fired lead

A non-powder electric ignition head for quick fired lead is disclosed. A resistance wire (11) and a lead pair (12) are welded on a circuit board (13). The front lower piece of a mounting clip (1) is a tongue-type plug (4) convenient for being inserted in a quick fired lead (17), and a positioning pin (16) corresponding to the quick fired lead (17) is disposed on the front upper piece of the mounting clip (1). The circuit board (13) is fixed on the tongue-type plug (4), the resistance wire (11) faced upwards is perpendicular to the inserting quick fired lead (17). The lead pair (12) is led out along the back end of the mounting clip (1) and fixed. Closure clasps (7,9,14,15) are disposed on both sides of the front upper and lower pieces of the mounting clip (1), the front ends of the mounting clip (1) are able to be closed under external force, then seized and fastened each other along the closure clasps. A hole (20) is drilled in the circuit board (13) corresponding to a calorifacient place of the resistance wire (11).

Slider member for booster explosive charges

滑动件(36)有一基夹具(40)和一屏蔽管(42)。滑动件(36)被用来可操作地将雷管(44)与延伸通过传爆装置(10)的导爆索(62)偶合，即用来防止导爆索(62)直接引爆或分裂传爆药(10)。基夹具(40)包括输入引线保持装置用来设置雷管(44)的输入引线(47)使与导爆索(62)保持信号转移关系。滑动件(36)可选择地设有雷管保持器(38)以便用来将雷管(44)保持在滑动件(36)上。最好，雷管保持器(38)能够将各种长度的雷管保持在适当的位置上以便引爆传爆装置(10)。将屏蔽管(42)设置在滑动件(36)上，传爆装置(10)能与各种不同的导爆索(62)一起使用，具有合适所选导爆索(62)的屏蔽管(42)的滑动件(36)能被插入到传爆装置(110)内。

Accessory charges for booster explosive devices

An accessory charge (20) for mounting on a booster explosive device (10) is preferably of toroidal configuration including a hub opening (29) dimensioned and configured to engage the accessory charge (20) with the booster device (10). The booster device (10) may have exterior threads (32) which are engaged by the interior threads (34) of the accessory charge (20). The outer peripheral surface (26) of the accessory charge (20) may be concave in cross section so that the accessory charge (20) comprises a shaped charge facing radially outwardly thereof. The accessory charge (20) may be combined with the booster device (10) to provide a charge assembly (30).

DEVICE AND METHOD FOR CONDUCTING EXPLOSIVE WORKS

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 102 369 A (51) МПК F42B 3/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019102369, 06.08.2017 (71) Заявитель(и): АРЕНС, Брэндон (US), ГЕЙНЕ, Томас (US) Приоритет(ы): (30) Конвенционный приоритет: 07.08.2016 US 62/371,832; 04.08.2017 US 15/669,802 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.01.2019 US 2017/045652 (06.08.2017) (87) Публикация заявки PCT: A WO 2018/031430 (15.02.2018) Адрес для переписки: 123060, Москва, ул. Маршала Рыбалко, д. 2, к. 8, офис 300, ООО "Патентно-правовая фирма "А. Залесов и партнеры" R U (57) Формула изобретения 1. Устройство управления сходом снежных лавин, содержащее контейнер, содержащий наружную оболочку; клапан, расположенный в отверстии, который полностью проходит через указанную наружную оболочку для обеспечения подачи топлива и кислорода; провода воспламенителя, которые расположены внутри указанного контейнера; и резистивный элемент, который соединен с указанными проводами воспламенителя. 2. Устройство по п. 1, содержащее шприц, который вставляют в указанный клапан. 3. Устройство по п. 2 содержащее: шток; и полую иглу. 4. Устройство по п. 1, в котором указанные провода воспламенителя расположены в каналах, которые полностью проходят через указанный кожух. 5. Устройство по п. 1, в котором указанные провода воспламенителя соединены с резистивным элементом, причем указанный резистивный элемент расположен внутри указанного контейнера. 6. Устройство по п. 1, содержащее детонатор, прикрепленный к указанным проводам воспламенителя, причем указанный детонатор расположен снаружи указанного контейнера. 7. Способ управления сходом снежных лавин, включающий: обеспечение наличия контейнера с наружной оболочкой; Стр.: 1 A 2 0 1 9 1 0 2 3 6 9 (54) УСТРОЙСТВО И СПОСОБ ДЛЯ ПРОВЕДЕНИЯ ВЗРЫВНЫХ РАБОТ 2 0 1 9 1 0 2 3 6 9 (86) Заявка PCT: R U (43) Дата публикации заявки: 29.07.2020 Бюл. № 22 (72) Автор(ы): АРЕНС, Брэндон ...

PRE-DEATH KIT AND ELEMENT AND EXPLOSION CAPS CONTAINING SUCH KIT

A pyrotechnic delay charge for providing delays in the millisecond and second ranges, comprising the components bismuth oxide as an oxidation agent and silicon as a fuel. The invention also relates to a pyrotechnic delay element having an enclosure containing the pyrotechnical delay charge, and to a detonator having a housing, ignition means disposed at one end of the housing, a base charge of a secondary explosive disposed at the other end of the housing and the pyrotechnic delay charge disposed therebetween.

DEVICE FOR CONNECTING AT LEAST TWO SHOCKWAVE CONDUCTIVE TUBES

Un dispositif de connexion d'au moins deux tubes conducteurs à onde de choc (11, 12) comprend un boitier (14) comportant un logement sensiblement cylindrique adapté à loger un détonateur s'étendant suivant une direction longitudinale du logement, le boitier (14) comprenant à une extrémité un bloc de montage (20) des tubes conducteurs à onde de choc (11, 12) dans une direction parallèle à la direction longitudinale du logement. Le bloc de montage (20) comprend deux fentes sensiblement semi-annulaires (21, 22), disposées symétriquement par rapport à un axe central longitudinal (X) du logement, et deux ouvertures de passage (25, 26) des tubes conducteurs à onde de choc (11, 12) s'étendant parallèlement à la direction longitudinale et débouchant respectivement dans les fentes sensiblement semi-annulaires (21, 22). A device for connecting at least two shock wave conducting tubes (11, 12) comprises a housing (14) comprising a substantially cylindrical housing adapted to house a detonator extending in a longitudinal direction of the housing, the housing (14) ) comprising at one end a mounting block (20) of shock wave conductive tubes (11, 12) in a direction parallel to the longitudinal direction of the housing. The mounting block (20) comprises two substantially semi-annular slots (21, 22), arranged symmetrically with respect to a longitudinal central axis (X) of the housing, and two passage openings (25, 26) of the wave conducting tubes. shock absorber (11, 12) extending parallel to the longitudinal direction and opening respectively into the substantially semi-annular slots (21, 22).

Flameproof delay composition with a delayed-action time in the millisecond range

Safety booster for explosive systems

A safety booster 30 for a perforation gun assembly which includes a cup having at least one opening 34, 36 and a secondary explosive 40 disposed within the cup. The booster also includes a cover 42 for the opening to contain the secondary explosive inside the cup. The cover may be made of a material having a low melting point so that it would melt in the event of a fire and allow pressure to be relieved from within the cup. <IMAGE>

Pyrotechnic delay cord

A pyrotechnic delay cord consists of a column of a pyrotechnic composition, which may be conventional, contained within a flexible tube of ductile metal, preferably lead or a lead alloy, or alternatively of aluminium, copper or silver copper, antimony or tellurium may be used as the alloying elements. The tube is in turn sheathed by a sleeve of a deformable, gas impervious plastics material, which may be a plastic or elastomeric, flexible or semi-rigid polyolefin, fluoroplastic, silicone or fluoro elastomer and may be heat shrunk on. The cord is preferably surrounded by an elastomeric support matrix. Cords according to the invention may be used over a wide range of environmental temperatures and pressures and may be made with metal tube diameters as low as 0.4 mm. The cords may be coiled into small volumes to enable them to be contained in an annular container 24, the plastics sheathing preventing crossover of the burning reaction. The cords may be used with a wide variety of conventional ignition means 22, and may be used for any sort of detonative, explosive or explosive/mechanical output 23. Two typical delay systems using the cord are described. <IMAGE>

Low energy fuse and method for its manufacture

A low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at least two layers of plastic materials, a first plastic layer closer to the channel and a second plastic layer outside the first layer, at least the second layer containing a major amount of draw orientable polymer resin. The polymer in the second layer is axially oriented to an orientation degree (as defined) of more than 25 % and less than 90 % and that the polymer of the first layer has an axial orientation degree not exceeding 10 % orientation degree units more than that of the second layer. The tube can be manufactured by a) forming, by extrusion of the first layer plastic, the first layer in the form of a tube, b) introducing the reactive material in the tube channel, c) limiting stretching of the first layer to give a low degree of orientation, not exceeding 10 % (as defined), d) forming, by extrusion of the second layer plastic, the second layer around the first tube, while the first layer have said low degree of orientation, and e) cold-stretching the first and second layers together.

Method and device for conducting commercial blasting operations

A method and an electrical device for use in conducting a commercial blasting operation is described, in which electricity required for operation of the device in the operation is generated by forming a galvanic cell. The galvanic cell comprises two electrodes in contact with an ionic conductor, wherein (i) the ionic conductor is an explosive composition being used in the commercial blasting operation or derived from an explosive composition being used in the commercial blasting operation, (ii) the explosive composition is an emulsion explosive comprising droplets comprising an electrolyte in a matrix of a fuel phase, and (iii) a demulsifier is contacted with emulsion explosive between the electrodes in order to produce the ionic conductor between the electrodes. The method and device provide a safety advantage of an explosive-containing initiation device with a built-in power supply distinct from the explosive material.

Smoke candle having advanced ignition apparatus

본 발명은 개선된 점화장치를 가져 점화의 효율성과 편의성을 향상시킨 불꽃 또는 연막 발생기에 관한 것으로, 본 발명은, 본체부 내부에 연막재가 충진되고, 상기 본체부 내의 일 측 공간에 배치되어 상기 연막재를 점화시키는 점화부로 이루어지는 연막 발생기에 있어서, 상기 점화부는, 통 형상의 제 1 하우징, 일단이 상기 제 1 하우징 내부에 위치하고, 타단이 상기 제 1 하우징과 상기 본체부의 케이스를 관통하면서 상기 본체부 외부로 노출되는 점화선, 상기 제 1 하우징 내부에 충진되는 점화약, 및, 일단이 상기 제 1 하우징 내부에 위치하고, 타단이 상기 본체부 내부의 상기 연막재에 연결되는 도화선을 포함하고, 상기 점화선의 강제 인출에 따라 상기 점화선이 상기 제 1 하우징 또는 상기 점화약에 충돌되어 불꽃을 발생시켜 점화가 이루어지도록 구성된다.

Connector for igniting a low-energy fuse

The ignition of explosive

提供一种用于引爆爆炸性药剂的爆炸物引信系统，引信系统在使用时被布置为与爆炸性药剂成引爆关系。在接受具有引爆启动特性的引爆启动信号时，系统启动、从而引爆爆炸性药剂。系统包括：启动装置，其接受引爆启动信号且启动、从而引爆所述爆炸性药剂。启动装置初始处于其不能操作性地接受引爆启动信号的非引爆启动状态。系统还包括切换装置，切换装置检测化学组成成分，作为发送给引信系统的切换信号的切换特性，在检测到化学组成成分时，切换装置能够将启动装置切换为待命状态，在待命状态中，启动装置在引爆启动信号发送给它时接受引爆启动信号。

Booster for relaying detonation train from detonating cord to another booster comprises explosive and shell housing

L'invention concerne un relais explosif, destiné à propager une onde de détonation depuis un cordeau détonant vers un second relais et comprenant une charge explosive et une enveloppe, ladite enveloppe ayant une première extrémité recevant une extrémité dudit cordeau détonant et une seconde extrémité fermée. Selon l'invention, ladite seconde extrémité possède une forme bosselée destinée former un projectile pour percuter ledit second relais, lors de l'explosion de ladite charge explosive.Selon l'invention, l'invention concerne également un relais explosif, destiné à propager une onde de détonation depuis un cordeau détonant vers un second relais et comprenant une enveloppe destinée à recevoir une extrémité dudit cordeau détonant et une charge explosive destinée à exploser sous une onde de détonation. Selon l'invention, ladite charge explosive comprend au moins sensiblement 50% en masse de 2, 2', 2 ", 4, 4', 4 ", 6, 6', 6 " -nonanitroterphényl (NONA) de telle sorte que l'enveloppe est éclatée en au moins un projectile destiné à percuter ledit second relais.

Secure connector for blast initiation signal transfer

A connector device (10) for disposing a detonator (12) in signal transfer relation with a signal-receiving line (30) receives the detonator (12) in a sleeve member (14). A line-engaging member (24) is connected to the sleeve member (14) and cooperates with sleeve member (14) to define a slot (26) therebetween within which the signal-receiving line (30) is disposed. The slot (26) is dimensioned and configured to dispose the signal-receiving line (30) therein in an undulate configuration. The device (10) may be used alone or in conjunction with a tail connector (56) to secure a donor line (74) in signal transfer relation with the input lead (13) of the detonator (12).

Slow combustion pyrotechnic composition

Low-energy tube and means for its production

Non-electric detonator

A detonator (10) has a constant-diameter shell (12) which has a significantly higher shell length-to-diameter (outside diameter) ratio than prior art detonators. The shell (12) is configured to hold an explosive output charge (18) which is cylindrical in configuration and has a charge L:D ratio which is greater than that of prior art constant diameter detonators. As a result, a significant portion of the output signal of the detonator is directed laterally and it is feasible to transfer signals to a plurality of receptor lines disposed along that portion of the length of the detonator which is co-extensive with the length of the explosive output charge (18). A connector block (26) is configured to hold at least one array of receptor lines in side-by-side arrangement along the side of the detonator (10), and transversely to the longitudinal axis of the detonator (10).

Timed pyric chain apparatus for the ignition of pyrotechnical fireworks

A timed pyric chain apparatus, particularly for the ignition of pyrotechnica l fireworks comprising a main conduit (2) for a retard fuse (16) said main conduit (2) having lateral branch conduits (5). The apparatus consists of coupled modular means, each modular means consisting of a fuse holder (1) comprising a main conduit (2) in which a retard fuse (16) is to be placed, said main conduit being divided into a first portion (3) and a second portio n (4), the cross section of the first portion (3) being smaller than the cross section of the second portion (4), the fuse holder further comprising a lateral branch conduit (5) for receiving a wick (17) retainer (11) for a par t of its length, said wick being provided with a fire passing sheath (18), the coupling of a first fuse holder (1) to a second fuse holder (1~) resulting from the introduction of the first portion (3) of the first fuse holder (1) in a second portion (4~) of the second fuse holder (1~).

SHAPED OBJECT WITH INTEGRAL SHIFTABLE ELEMENT OR ELEMENTS AND METHOD FOR THE USE THEREOF / ITS USE

Energetic linear timing element

A timing element for an initiator is made from a reactive polymeric material such as, e.g., a glycidyl azide polymer. The reactive polymeric material may include pulverulent oxi­dizer additives, such as ammonium, perchlorate and/or ferric oxide. The oxidizer additives are used to increase the rate of reaction and the output spark of the polymer material. The timing element serves to delay the travel of an initiation signal between an input, such as a signal transmission input line, and an explosive output charge, for a predetermined period of time, usually about 5 to about 10,000 milliseconds, e.g., about 9 to about 9600 milliseconds.

A perforating charge carrier and method of assembly for same

A tubular charge holder assembly for a perforating gun made of a tube having a plurality of pairs of diametrically opposed openings. The pairs of openings are formed over a length of the tube, wherein the each pair has a larger and a smaller opening. A shaped charge is located within the pairs of openings in the tubular charge holder so that at least a portion of the rim of a front face of the shaped charge extends out of the larger opening and at least a portion of a rear face of the shaped charge extends out from the smaller opening of the tube. A detonating cord is helically wrapped around the outside surface of the tube such that the detonating cord is positioned so that the cord is proximate to the rear surface of each of the shaped charges installed within the tube. A substantially semi-circular clip is positioned on the outside surface of the tube proximate each of the shaped charges. Each clip includes first hook on a first end and a second hook on a second end on the front of the clip for engaging at least two portions of the rim surrounding the front face of the shaped charges. On a back of the clip, the clip has a retainer, such as a U-shaped portion or snap device to secure the detonating cord proximate to the rear surface of the shaped charge. The retainer may be perpendicular to a longitudinal axis of the clip or may be angled or offset with respect to the longitudinal axis of the clip to accommodate the helically wrapped detonating cord. The clip may be a wire, a pair of wires, a band, a perforated band having a adjuster or other suitable configurations.

Slider member for booster explosive charges

A slider (36) has a base fixture (40) and a shielding tube (42). The slider (36) is used to operably couple a detonator (44) to a detonating cord (62) that passes through a booster device (10), i.e., to prevent the detonating cord (62) from directly initiating or fracturing the booster (10). The base fixture (40) includes input lead-retaining means for disposing the input lead (47) of a detonator (44) in signal transfer relation to the detonating cord (62). Optionally, the slider (36) has a detonator retainer (38) for carrying the detonator (44) on the slider (36). Preferably, the detonator retainer (38) is able to hold detonators of various lengths in proper position to initiate the booster device (10). By disposing the shielding tube (42) on the slider (36), a booster device (10) can be used with various detonating cords (62), and a slider (36) having a shielding tube (42) suitable for the chosen detonating cord (62) can be inserted into the booster device (10).

Pyrotechnic charge composition and the use thereof in delay elements

Delay starters

A delay starter device includes an elongated cylindrical member; a slow combustible material provided in the cylindrical member; and a highly combustible material provided at at least one position in or on the cylindrical member. The highly combustible material is adapted to be placed in contact with a fuse cord, and is further adapted to be ignited by the slow combustible material and in turn is adapted to ignite a fuse cord when in contact with it.

Combined setting off method for micro single fireworks

一种微型单体烟花的组合燃放方法，其特征在于所述的微型单体烟花的每一个个体上设有1－2个与微型单体烟花点火引线相连的导火筒；该导火筒的两端各为一外接口；该外接口通过一根根带导火索的柔性连接管组成一个互相关联的微型单体烟花燃放群。导火筒与该烟花单体中的首发点火盛药纸筒可以呈串状连接，也可以呈并联状连接；而该导火筒的两端则成为与另两组微型单体烟花的连接口。

Low-energy fuse and method of making same

A low energy fuse, comprising a plastic tube with a channel, the channel containing a reactive material able upon ignition to sustain a shock wave within the channel, the tube comprising at least two layers of plastic materials, a first plastic layer closer to the channel and a second plastic layer outside the first layer, at least the second layer containing a major amount of draw orientable polymer resin. The polymer in the second layer is axially oriented to an orientation degree (as defined) of more than 25 % and less than 90 % and that the polymer of the first layer has an axial orientation degree not exceeding 10 % orientation degree units more than that of the second layer. The tube can be manufactured by a) forming, by extrusion of the first layer plastic, the first layer in the form of a tube, b) introducing the reactive material in the tube channel, c) limiting stretching of the first layer to give a low degree of orientation, not exceeding 10 % (as defined), d) forming, by extrusion of the second layer plastic, the second layer around the first tube, while the first layer have said low degree of orientation, and e) cold-stretching the first and second layers together.