| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | SECURITY DETONATOR | US13557889 | 2012-07-25 | US20140109787A1 | 2014-04-24 | Hervé LE BRETON; Nathalie RAFFIN-BARRIL; Didier CAZAJOUS |
| The subject-matter of the invention is a detonator comprising a flying plate propelled by a squib stage comprising at least one first pyrotechnic composition and/or one first explosive, said plate being propelled onto a relay stage comprising at least one secondary explosive, wherein said detonator is provided with thermal insulation means surrounding the squib stage for delaying the temperature rise thereof. | ||||||
| 162 | Detonator free laser initiated blasting system | US12450137 | 2008-03-14 | US08272325B2 | 2012-09-25 | Richard John Goodridge; Rodney Wayne Appleby; David Olaf Johnson; Thomas Miller |
| A detonator free blasting system, which comprises: a bulk explosive; a confined explosive; a fiber optic adapted to deliver laser light to the confined explosive, wherein the confined explosive is provided relative to the bulk explosive such that detonation of the confined explosive causes initiation of the bulk explosive. | ||||||
| 163 | INITIATION OF EXPLOSIVES MATERIALS | US12450137 | 2008-03-14 | US20100180786A1 | 2010-07-22 | Richard John Goodridge; Rodney Wayne Appleby; David Olaf Johnson; Thomas Miller |
| A detonator free blasting system, which comprises: a bulk explosive; a confined explosive; a fiber optic adapted to deliver laser light to the confined explosive, wherein the confined explosive is provided relative to the bulk explosive such that detonation of the confined explosive causes initiation of the bulk explosive. | ||||||
| 164 | METHODS AND SYSTEMS TO ACTIVATE DOWNHOLE TOOLS WITH LIGHT | US12430486 | 2009-04-27 | US20100025032A1 | 2010-02-04 | David R. Smith; Rogerio T. Ramos; Arthur H. Hartog; Vladimir Vaynshteyn |
| The present invention comprises a system and methods to actuate downhole tools by transmitting an optical signal through an optical fiber to the downhole tool. The optical signal can comprise a specific optical signal frequency, signal, wavelength or intensity. The downhole tool can comprise packers, perforating guns, flow control valves, such as sleeve valves and ball valves, samplers, sensors, pumps, screens (such as to expand), chemical cutters, plugs, detonators, or nipples. | ||||||
| 165 | Wireless Detonator Assemblies, Corresponding Blasting Apparatuses, and Methods of Blasting | US11718027 | 2005-11-02 | US20080307993A1 | 2008-12-18 | Sek Kwan Chan; Ronald F. Stewart; Howard A. Bampfield |
| A wireless or partially wireless detonator assembly (10) and corresponding blasting apparatus, that may be “powered Up” by a remote source of power (13) that is entirely distinct from the energy used for general command signal communications (16). In one embodiment, the detonator assembly (10) may include an active power source (25) with sufficient power for communications, but insufficient power to cause intentional or inadvertent actuation of the detonator (10). | ||||||
| 166 | Module for supplying hydrogen to a fuel mini-cell with sequential control of pyrotechnic elements | US10362917 | 2002-05-07 | US07235317B2 | 2007-06-26 | Gilles Delapierre |
| The module is designed for supplying hydrogen to a fuel mini-cell, wherein hydrogen is gradually released by combustion of elements made of pyrotechnic material, after ignition. A device for sequential control of ignition of the pyrotechnic elements comprises a circuit controlling an electrical or light energy source which supplies an ignition control signal causing energy to be applied to the input of a series of connecting means, respectively associated with each of the pyrotechnic elements. A single pyrotechnic element is connected to the energy source at any one time, the elements preceding it having already been used. The connecting means can be sensitive to temperature or to pressure. | ||||||
| 167 | Fuse for projected ordnance | US10766449 | 2004-01-27 | US07216589B2 | 2007-05-15 | David John Bishop; Herbert R. Shea; Donald P. Weiss |
| An ordnance fuse apparatus is described that uses electrical and mechanical, and optical devices. The ordnance fuse apparatus includes a controller to control an optical switch and a laser to detonate an explosive charge of the ordnance. Other embodiments include an accelerometer and/or spin detector for detecting that the ordnance has been fired and an optical detector for detecting the proper operation of the laser and a position sensor for detecting correct positioning of the optical switch. Another embodiment includes a microlens to focus the laser optical signal onto the ignitor. In yet other embodiments, the explosive charge is detonated either by ignition of an ignitor or by a shock wave from the ignitor. The resulting ordnance fuse apparatus has significantly reduced size and improved performance and safety. | ||||||
| 168 | Optically triggered fire set/detonator system | US10676704 | 2003-09-30 | US07191706B2 | 2007-03-20 | Jay B. Chase; Philip A. Pincosy; Donna M. Chato; Hugh Kirbie; Glen F. James |
| The present invention is directed to a system having a plurality of capacitor discharge units (CDUs) that includes electrical bridge type detonators operatively coupled to respective explosives. A pulse charging circuit is adapted to provide a voltage for each respective capacitor in each CDU. Such capacitors are discharged through the electrical bridge type detonators upon receiving an optical signal to detonate respective operatively coupled explosives at substantially the same time. | ||||||
| 169 | Low-energy optical detonator | US10277910 | 2002-10-21 | US07051655B1 | 2006-05-30 | Henry Moulard; Augustre Ritter; Jean-Marie Brodbeck |
| The invention relates to an optical detonator comprising a secondary explosive disposed in a cavity, an optical fiber having one end connected to a source of laser radiation, and a focusing optical interface situated between the other end of the optical fiber and the secondary explosive and adapted to transmit the laser radiation to the secondary explosive. According to the invention, a layer of an ignition powder is disposed in the cavity between the secondary explosive and the focusing optical interface. | ||||||
| 170 | LOW-ENERGY OPTICAL DETONATOR | US10277910 | 2002-10-21 | US20060096484A1 | 2006-05-11 | Henry Moulard; Augustre Ritter; Jean-Marie Brodbeck |
| The invention relates to an optical detonator comprising a secondary explosive disposed in a cavity, an optical fiber having one end connected to a source of laser radiation, and a focusing optical interface situated between the other end of the optical fiber and the secondary explosive and adapted to transmit the laser radiation to the secondary explosive. According to the invention, a layer of an ignition powder is disposed in the cavity between the secondary explosive and the focusing optical interface. | ||||||
| 171 | Fuse for projected ordnance | US10766449 | 2004-01-27 | US20050183605A1 | 2005-08-25 | David Bishop; Herbert Shea; Donald Weiss |
| An ordnance fuse apparatus is described that uses electrical and mechanical, and optical devices. The ordnance fuse apparatus includes a controller to control an optical switch and a laser to detonate an explosive charge of the ordnance. Other embodiments include an accelerometer and/or spin detector for detecting that the ordnance has been fired and an optical detector for detecting the proper operation of the laser and a position sensor for detecting correct positioning of the optical switch. Another embodiment includes a microlens to focus the laser optical signal onto the ignitor. In yet other embodiments, the explosive charge is detonated either by ignition of an ignitor or by a shock wave from the ignitor. The resulting ordnance fuse apparatus has significantly reduced size and improved performance and safety. | ||||||
| 172 | Signal transfer device | US10460743 | 2003-06-11 | US20040031411A1 | 2004-02-19 | David B. Novotney; John A. Graham |
| The present invention is a signal transmission system (10) that can receive a non-electric input signal such as a mechanical shock, detonation, or pyrotechnic signal at an input terminus (12), convert that signal to an electrical signal, and convey the electrical signal to at least one output terminus (16a, 16b) at a remote location where the signal is converted to a non-electric output. To convert the non-electric input signal to an electrical signal, the input terminus (12) comprises a receiving transducer e.g., a piezoelectric, electrochemical, or photovoltaic element. The input terminus (12) is connected by transfer wiring (14) (e.g., an electrical wire harness or a flex cable) to the remote location, where it is received by the at least one output terminus (16a, 16b) and there converted to a non-electric signal that is used for a desired function. The length of the transfer wiring (14), and therefore the distance from the input terminus (12) to the remote location, can be from less than one inch to greater than 100 feet. Optionally, the transfer wiring (14) can connect the input terminus (12) to a plurality of output termini (16a, 16b). Also optionally, an output terminus may comprise an explosive bridge element (SCB, hot bridge-wire, exploding foil) which can be initiated by the electrical signal, and the bridge element may initiate a brisant output charge (explosive or pyrotechnic). Alternatively, the output terminus may comprise an output transducer, e.g., a piezoelectric transducer, to convert the electrical signal into a physical pulse. | ||||||
| 173 | Optical igniter with graded index glass rod | US09611015 | 2000-07-06 | US06539868B1 | 2003-04-01 | Henry Moulard |
| An optical igniter includes a pyrotechnic substance and an optical fiber, one end of which is connected to a source of laser radiation and the other end of which is inserted in a connector. A removable mechanical connection is provided between the optical fiber connector and the pyrotechnic substance. A glass rod between the optical fiber connector and the pyrotechnic substance has its axis aligned with the axis of the optical fiber and is made of graded index glass in one part or two coaxial parts. It is in contact with the pyrotechnic substance and with the end of the optical fiber. Laser radiation from the end of the optical fiber passes through the glass rod and is focused onto the face of the glass rod in contact with the pyrotechnic substance. | ||||||
| 174 | Photoluminescence built-in-test for optical systems | US39591 | 1998-03-16 | US5965877A | 1999-10-12 | Lance A. Wood; Paul J. Caldwell; Terrance L. Worchesky |
| A built-in-test capability is provided for determining the integrity of an optical fiber connecting: (a) an optical firing unit having a primary light source emitting a first wavelength, a test light source emitting a second wavelength different from the first wavelength, a mechanism both for coupling light from the light sources to the optical fiber and also for coupling the return light to a detector; and (b) an optically-initiated device which is coupled to a second end of the optical fiber. The apparatus includes a photoluminescent material disposed at a junction of the optically-initiated device and the second end of the optical fiber. In test mode, this photoluminescent material is exposed to the test light source, which results in photoluminescence at a third wavelength. The photoluminescent light travels through the optical fiber to the detector, and when detected indicates optical fiber continuity. The present system can also measure the temperature at the distal end of the optical fiber by detecting changes in the peak wavelength or amplitude associated with the third wavelength as a function of temperature. When the system is used to initiate ordnance, the detector can also detect the initial flash of light produced by the ordnance to provide confirmation that the ordnance has ignited. | ||||||
| 175 | Photoluminescence built-in-test for optical systems | US739641 | 1996-10-30 | US5729012A | 1998-03-17 | Lance A. Wood; Paul J. Caldwell; Terrance L. Worchesky |
| A built-in-test capability is provided for determining the integrity of an optical fiber connecting: (a) an optical firing unit having a primary light source emitting a first wavelength, a test light source emitting a second wavelength different from the first wavelength, a mechanism both for coupling light from the light sources to the optical fiber and also for coupling the return light to a detector; and (b) an optically-initiated device which is coupled to a second end of the optical fiber. The apparatus includes a photoluminescent material disposed at a junction of the optically-initiated device and the second end of the optical fiber. In test mode, this photoluminescent material is exposed to the test light source, which results in photoluminescence at a third wavelength. The photoluminescent light travels through the optical fiber to the detector, and when detected indicates optical fiber continuity. When the system is used to initiate ordnance, the detector can also detect the initial flash of light produced by the ordnance to provide confirmation that the ordnance has ignited. | ||||||
| 176 | Modular laser apparatus | US303860 | 1994-09-09 | US5584137A | 1996-12-17 | James W. Teetzel |
| A laser sight that can be fits conventional handguns and rifles without requiring major modification of the weapons and yet fits within the profile of the weapons framework. The invention features a chassis containing an infrared and visible red laser than can be mounted in various position, depending on the weapon selected. For a 9 mm handgun, the chassis mounts on the front face of the muzzle. For a M-16, the chassis mounts on the weapon handle. The weapons factory installed hand grips are replaced by modified hand grips that contain the laser electronic controls, water proof activation switches, and power source. The hand grips are wired to the chassis via a flexible internal circuit tape in the case of the 9mm and waterproof quick disconnect cable for the M-16. The apparatus is designed to be used with commercially available batteries providing about 12 hours of operating time. | ||||||
| 177 | Method of making an integral window hermetic fiber optic component | US262125 | 1994-06-17 | US5573565A | 1996-11-12 | Rick D. Dalton; Daniel P. Kramer; Richard T. Massey; Damon A. Waker |
| In the fabrication of igniters, actuators, detonators, and other pyrotechnic devices to be activated by a laser beam, an integral optical glass window is formed by placing a preform in the structural member of the device and then melting the glass and sealing it in place by heating at a temperature between the ceramming temperature of the glass and the melting point of the metal, followed by rapid furnace cooling to avoid devitrification. No other sealing material is needed to achieve hermeticity. A preferred embodiment of this type of device is fabricated by allowing the molten glass to flow further and form a plano-convex lens integral with and at the bottom of the window. The lens functions to decrease the beam divergence caused by refraction of the laser light passing through the window when the device is fired by means of a laser beam. | ||||||
| 178 | Direct laser ignition of ignition products | US116929 | 1993-09-03 | US5406889A | 1995-04-18 | Guy R. Letendre; Virginia E. Chandler; David B. Monk |
| A device is provided for ignition of a pyrotechnic or hybrid inflator for use in motor vehicles by the input of energy provided by a laser source. The laser energy is conducted through an optical fibre and an optical window in the inflator housing where the ignition of a propellant initiator is triggered. This apparatus eliminates the potential for ignition of the inflator by radio frequency energy or static electricity acting on the electrical squib which is standardly used to ignite an inflator. This design further simplifies the igniter assembly for use in an inflator. | ||||||
| 179 | No moving parts safe & arm apparatus and method with monitoring and built-in-test for optical firing of explosive systems | US257316 | 1994-06-09 | US5404820A | 1995-04-11 | James L. Hendrix |
| A laser initiated ordnance controller apparatus which provides a safe and m scheme with no moving parts. The safe & arm apparatus provides isolation of firing energy to explosive devices using a combination of polarization isolation and control through acousto-optical deviation of laser energy pulses. The apparatus provides constant monitoring of the systems status and performs 100% built-in-test at any time prior to ordnance ignition without the risk of premature ignition or detonation. The apparatus has a computer controller, a solid state laser, an acousto-optic deflector and RF drive circuitry, built-in-test optics and electronics, and system monitoring capabilities. The optical system is completed from the laser beam power source to the pyrotechnic ordnance through fiber optic cabling, optical splitters and optical connectors. During operation of the apparatus, a command is provided by the computer controller and, simultaneous with laser flashlamp fire, the safe & arm device is opened for approximately 200 microseconds which allows the laser pulse to transmit through the device. The arm signal also energizes the laser power supply and activates the acousto-optical deflector. When the correct fire format command is received, the acousto-optic deflector moves to the selected event channel, and the channel is verified to ensure the system is pointing to the correct position. Laser energy is transmitted through the fiber where an ignitor or detonator designed to be sensitive to optical pulses is fired at the end of the fiber channel. Simultaneous event channels may also be utilized by optically splitting a single event channel. The built-in-test may be performed anytime prior to ordnance ignition. | ||||||
| 180 | Detonating device for a secondary explosive charge | US957775 | 1992-10-08 | US5317973A | 1994-06-07 | Andre Winaver, deceased; Dominique Broussoux |
| The detonating device for a secondary explosive charge includes energy reservoir means and exploding foil igniter means coupled to the energy reservoir means by an optical commutator functioning in photo-conduction mode. The device may be extended to any number of separate detonation channels, and each detonation channel may be supplied with optical pulse beams generated by a single laser source or by separate, dedicated laser sources. The optical pulse beams are guided via optical fibers that may vary in length in accordance with preprogrammed detonation timing sequences. The invention finds particular application in the field of high safety detonation systems. | ||||||
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