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| Number | Title | Issue Date |
| 7331290 | Fuze explosive ordnance disposal (EOD) circuit The present invention comprises an electronic Explosive Ordnance Disposal (EOD) circuit which is desirably used with fuzed explosive weapons, such as projectiles having a nominal mission time. After expiration of the mission time, if the explosive has not detonated,... | 02/19/2008 |
| 7275485 | Squib A squib associated with a supplemental restraint system includes an igniting agent positioned above a first pin that is a connecting terminal providing a connection with a two-wire system bus wire, which is an external signal wire, and above a header that is provide... | 10/02/2007 |
| 7188674 | Downhole milling machine and method of use The present invention is directed to a method and apparatus for providing a pathway for fluid communication through a tubing-retrievable subsurface safety valve (TRSSV). The method and apparatus are designed to be deployed within a hydrocarbon wellbore after the TRS... | 03/13/2007 |
| 6966261 | Fuze explosive ordnance disposal circuit The present invention comprises an electronic Explosive Ordnance Disposal (EOD) circuit which is desirably used with fused explosive weapons, such as projectiles having a nominal mission time. After expiration of the mission time, if the explosive has not detonated,... | 11/22/2005 |
| 6848713 | Airbag gas producer A gas generator for an air bag comprises: a housing having a gas discharging port; an initiator assembly provided with a first igniter and a second igniter mounted to the housing via a holder, each of the first igniter and the second igniter including a priming acti... | 02/01/2005 |
| 6739264 | Low cost ignition device for gas generators An initiator has a circuit board with two spaced copper traces and a bridge resistor of Nichrome® or tantalum nitride at one end, and wire leads or pins joining the wire traces at the other end. A zener diode is placed between the wire leads and a bridge resistor. ... | 05/25/2004 |
| 6513436 | Ignition module for explosive content detonator, method and equipment for making a detonator equipped with same An electronic module for a detonator, the module comprising an electronic circuit (4, 5, 6) encapsulated in a mass of hardened resin (7) in which there terminates at least one inlet conductor (8) and from which there extend two outlet conductors forming a... | 02/04/2003 |
| 6467414 | Ignitor with printed electrostatic discharge spark gap An ignitor has an outer metal can containing a quantity of reactive material for initiating a pyrotechnic material. A circuit board has a first side that is in contact with the reactive material and a second side that is isolated from the reactive materia... | 10/22/2002 |
| 6133146 | Semiconductor bridge device and method of making the same A device, e.g., an explosive-initiation device (24) includes a semiconductor bridge device (10) comprising semiconductor pads (14a, 14b) separated by an initiator bridge (14c) and having metallized lands (16a, 16b) disposed over the pads (14a, 14b). The m... | 10/17/2000 |
| 5847309 | Radio frequency and electrostatic discharge insensitive electro-explosive devices having non-linear resistances An electro-explosive device has two serpentine resistors fabricated on a thermally conductive substrate with the resistors being interconnected by a central bridge element. The resistance of the bridge element is much lower than that of the serpentine res... | 12/08/1998 |
| 5401180 | Connector shorting spring A conductive spring device (46, FIG. 8 ) is described, which shorts a pair of connector terminals (14, 16) when the connector (12) is not mated to a second connector device (18). The spring device is of the type having a fixed anchor end (50) connected to... | 03/28/1995 |
| 5355800 | Combined EED igniter means and means for protecting the EED from inadvertent extraneous electricity induced firing The precision ignition device disclosed in U.S. Pat. No. 4,708,060 is combined with the device disclosed in U.S. Pat. No. 5,036,768, and U.S. Ser. No. 07/584,045 to provide accurate control over the ignition of an EED while also protecting that EED from i... | 10/18/1994 |
| 5307742 | EMI/RFI/ESD shield for electro-mechanical primer fuses A shielding device such as for a primer fuse is disclosed. The shielding device is multi-layered, and combines the shielding affectivity of metal foil with electrically conductive adhesive and a dielectric film. Upon application of the shielding device, t... | 05/03/1994 |
| 5243911 | Attenuator for protecting electronic equipment from undesired exposure to RF energy and/or lightning A device for preventing energy associated with nearby lightning strikes, electrostatic energy, and/or RF energy from damaging or inadvertently operating or actuating electronic equipment, such as an EED electrical initiation element, includes a bipartite ... | 09/14/1993 |
| 5241910 | Universal squib connector for a gas generator A universal squib connector for automobile driver and passenger air bag collision protection systems includes a ferrite bead having two holes in spaced relation with an electric terminal positioned in each hole for making electrical contact with an associ... | 09/07/1993 |
| 5200574 | Universal squib connector A universal squib connector for automobile driver and passenger air bag collision protection systems includes a ferrite bead having two holes in spaced relation with an electric terminal positioned in each hole for making electrical contact with an associ... | 04/06/1993 |
| 5129322 | Explosive tubing cutter and method of assembly A tubing cutter apparatus includes a housing or casing member formed of a zirconia ceramic material. The zirconia ceramic material is located at least proximate an explosive charge section, such the detonation of the explosive charge will cause shattering... | 07/14/1992 |
| 5054395 | Plug connection for an electric ignitor The innovation relates to an electric ignitor for a pyrotechnic element hng a rotationally symmetrical electrical plugging arrangement comprising two plug elements connected together and with a short-circuiting spring being open in the progress.... | 10/08/1991 |
| 5048420 | Low energy fuse In the field of blasting, an improvement in means for transmitting an initiating signal (non-electrically) to an explosive device to remotely detonate same in accordance with a predetermined delay period of the type which comprises tubing in which there i... | 09/17/1991 |
| 5036768 | Attenuator for dissipating electromagnetic and electrostatic energy An attenuator for dissipating electromagnetic energy and equalizing electrostatic energy is formed of a lossy ferrite material having an electrical resistance in a range of about 3,000 to 50,000 ohms. A conductor passes through the material and thence to ... | 08/06/1991 |
| 4776275 | Pyrotechnical delay composition In order to achieve a delay time as constant as possible, an interspace is provided between a pyrotechnic delay composition and the delay tubule.... | 10/11/1988 |
| 4756250 | Non-electric and non-explosive time delay fuse Non-electric and non-explosive fuse-like initiating device which makes use of a process of propagation of a gaseous plasma generated by deflagration of a pyrotechnic material deposited as a layer on the inner surface of a supporting duct, employing transf... | 07/12/1988 |
| 4644863 | Electric detonator An electric detonator has a casing and a pole piece electrically insulated with respect to the casing by means of an insulating cup, as well as with an ignition resistor electrically conductively connected to the casing and to the pole piece. In order to ... | 02/24/1987 |
| 4628818 | Short circuit spring for an electrical connector A short circuit spring for an electrical connector, such as a plug-in connector, has a flat leaf spring section and a curved leaf spring section. A first hole in the flat section fits snugly in a contact making manner around an electrical terminal while a... | 12/16/1986 |
| 4299167 | Nonelectric delay initiator A surface delay device which exhibits good precision in delay timing when it is ignited from the side output of a low-energy detonating cord (LEDC) trunkline and end-initiates an LEDC trunkline or downline has a percussion-sensitive ignition charge wedged... | 11/10/1981 |
| 4290366 | Energy transmission device A low brisance energy transmission device comprising an elongated tube containing self-oxidizing material loosely contained therein is provided. The energy transmission device is able to transmit and propagate energy across bends, kinks, knots, crimps or ... | 09/22/1981 |
| 4271453 | Igniter with coupling structure An igniter is disclosed having a heat generator responsive to an ignition signal for igniting powder. comprises a first connector insulatingly supporting a first pair of electrical conductions having their one ends connected across the heat generator, fil... | 06/02/1981 |
| 4170939 | Ignition device for a passive retention system An ignition device for a passive retention system, especially in motor vehicles, in which an ignition unit arranged in a housing includes two plug pins which freely project on one side with their free end out of a casing and which are intended for sliding... | 10/16/1979 |
| 4050382 | Electrically detonated explosive device A safety circuit for a marine signal device adapted to be fired after being dropped into sea water. The device has a casing which will allow the water to enter when ready for firing. A salt water battery, a water pressure operated switch and an electric b... | 09/27/1977 |
