Having Electromagnetic Field Effects Diminishing Or Elimination Means Patents (Class 102/202.2)
  • Patent number: 10900817
    Abstract: A sensor arrangement has a support component, a sensor element with at least two terminals, at least two plug contacts and at least two connection elements for electrically connecting the connection elements to the control contacts. The support component receives the sensor element with at least two terminals and the at least two plug contacts. Connection elements are positioned and spaced apart from one another in the support component by means of spacer elements and separator elements. The disclosure also relates to a corresponding production method.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: January 26, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Sven Fleischer, Joachim Domat, Robert Remus, Ralf Walcher, Martin Winkler, Stephan Knackert, Rainer Gumpinger, Bernd Lutz, Michael Rambow
  • Patent number: 10663268
    Abstract: The present invention provides an igniter assembly in which an igniter having an ignition portion and an electroconductive pin, and a metallic igniter retaining member are integrated with a resin molded article interposed therebetween, the igniter assembly, including: a connector insertion space formed by the resin molded article, the electroconductive pin being protruding from the resin molded article and located in the connector insertion space; a spark member including, a first end connected to the metallic igniter retaining member, and a second end, opposite to the first end, located inside the connector insertion space; and an electrically insulating partition wall having a thickness of 0.1 mm to 1 mm, provided with no through hole, and interposed between a root portion of the electroconductive pin, which is in contact with the resin molded article, and the second end of the spark member.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: May 26, 2020
    Assignee: DAICEL CORPORATION
    Inventor: Shingo Oda
  • Patent number: 9929503
    Abstract: The present invention provides an airbag connector system comprising an airbag squib connector adapted to be mated with a corresponding airbag squib socket, whereby the airbag squib connector comprises a connector housing with a connection tube. The connection tube is provided with at least one reversed locking arm adapted to lock the airbag squib connector to the airbag squib socket, whereby the reversed locking arm extends from a flexible torsion element provided at an insertion sided end of the connection tube in a direction essentially opposing the insertion direction of the airbag squib connector into the corresponding socket. Thereby, the flexible torsion element is adapted to deform and thereby enable a deflection of the reversed locking arm upon insertion of the airbag squib connector into the airbag squib socket.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: March 27, 2018
    Assignee: DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R.L.
    Inventors: Michael Gunreben, Vincent Regnier, Thomas Schmidt
  • Patent number: 9915509
    Abstract: Disclosed is a claymore mine on which a device for preventing a breakdown attributable to a power noise has been mounted. In order to prevent an electric primer from operating due to a power noise induced by a magnetic field or generated by the falling of a thunderbolt or other factors, such as a communication device, a shield layer formed by weaving or braiding a conductive fiber, such as a carbon fiber, or weaving or braiding a copper-plated tin wire, is formed in the wire and percussion unit of the claymore mine. In order to discharge a power noise introduced into the wire and the percussion unit to the earth, a power noise discharge adaptor including a plurality of diodes, a TVS, a GDT, and an SPD is formed. Accordingly, the introduction of a power noise can be fundamentally blocked, and a power noise can be safely discharged to the earth if the power noise is introduced.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: March 13, 2018
    Inventor: Young-Ki Chung
  • Patent number: 9879952
    Abstract: An igniter carrier (4) for an igniter unit (1), particularly for a gas generator, including a first receptacle section (8) for an igniter (2), a second receptacle section (9) and a connecting section (7) for attaching the igniter unit (1), wherein the igniter carrier (4) is prefabricated from a plurality of individual parts joined together and can be assembled in an assembly process as an individual part (4) of an assembly (1) together with an igniter (2) and a connector part (3) is provided. An igniter unit (1), particular for a gas generator, including such an igniter carrier (4), to an igniter (2) and to a method for producing such an igniter unit (1) is provided.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 30, 2018
    Inventor: Karsten Schwuchow
  • Patent number: 9766051
    Abstract: The present invention provides an ammunition disabler with a material capable of being selectively changed in response to an energy wave for preemptively disabling ammunition. In at least one embodiment, the ammunition disabler includes a material selectively structurally changeable from an operative state to a deactivated state upon exposure to an energy wave is provided, where the material is positioned at least partially between the firing pin and the priming compound when the ammunition is chambered within the firearm (with the priming compound positioned between the material and the propellant), and related systems, methods and uses. The material may be contained within the primer cup with the priming compound. The material may be positioned adjacent to the priming compound in direct or indirect contact or in close proximity. The material may be positioned externally from the primer cup.
    Type: Grant
    Filed: March 11, 2017
    Date of Patent: September 19, 2017
    Assignee: JD Pharma, LLC
    Inventor: Joseph Dan Palo
  • Patent number: 9605937
    Abstract: According to an aspect, a perforating gun assembly and a detonator assembly is provided. The detonator assembly includes at least a shell, selective detonation, and more than one electrically contactable component that is configured for being electrically contactably received by the perforating gun assembly without using a wired electrical connection, but rather forms the electrical connection merely by contact with at least one of the more than one electrically contactable components. A method of assembling the perforating gun assembly including the detonator assembly is also provided.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: March 28, 2017
    Assignee: DynaEnergetics GmbH & Co. KG
    Inventors: Christian Eitschberger, Frank Haron Preiss, Thilo Scharf, Liam McNelis
  • Patent number: 9243877
    Abstract: An ignition circuit (200) includes: an igniter (210) having first (211) and second (212) terminals; a first diode (225) electrically connected in series with the igniter at the first terminal; a second diode (230) electrically connected in series with the igniter at the second terminal. The first and second diodes each have an anode terminal (226, 231) and a cathode terminal (227, 232), wherein like terminals of the first and second diodes are electrically connected to the igniter, thereby defining proximal terminals and distal terminals. A capacitor (235) is electrically connected across the distal terminals and connectable in parallel with a series-connected energy source (215) and switch (220). The energy source and a switch are electrically connectable across the distal terminals via test lead wires.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: January 26, 2016
    Assignee: DYNO NOBEL INC.
    Inventors: Michael J. Hayes, Laura B. Hayes, Mark I. Jurras
  • Patent number: 8960091
    Abstract: An initiator assembly can include an outer body can have a first end, a second end, and an internal passage between the first and second ends. An initiator canister can be joined to the outer body at the first end and can define a charge chamber that includes a pair of pins extending therefrom. An insulative material can be molded within the passage to form an insulative structural member that joins the canister and pins to the outer body and insulates the pins and a portion of the canister from electrical contact with the outer body. An electrostatic discharge dissipater can be formed from an electrically conductive material and can be molded to the outer body. The dissipater can provide a controlled dissipation path for electrostatic discharge energy carried by the initiator assembly.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: February 24, 2015
    Assignee: Autoliv ASP, Inc.
    Inventors: Scott C. Gordon, Jeffrey T. Kida, Benoit Sable
  • Patent number: 8601948
    Abstract: An radio frequency (RF) safe, high standoff voltage, ESD protected primary explosive detonator is described. The primary explosive detonator includes an isolated spark gap (SG) circuit and one or more shunt capacitors to insulate the electric match from ignition when exposure to high stray voltage or RF occurs in oilfield applications.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: December 10, 2013
    Assignee: Schlumberger Technology Corporation
    Inventor: Christian C. Spring
  • Patent number: 8397639
    Abstract: An initiator assembly can include an outer body can have a first end, a second end, and an internal passage between the first and second ends. An initiator canister can be joined to the outer body at the first end and can define a charge chamber that includes a pair of pins extending therefrom. An insulative material can be molded within the passage to form an insulative structural member that joins the canister and pins to the outer body and insulates the pins and a portion of the canister from electrical contact with the outer body. An electrostatic discharge dissipater can be formed from an electrically conductive material and can be molded to the canister and the outer body at the first end. The dissipater can electrically connect the canister to the outer body to provide a controlled dissipation path for electrostatic discharge energy carried by the initiator assembly.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: March 19, 2013
    Assignee: Autoliv ASP, Inc.
    Inventors: Scott C. Gordon, Jeffrey T. Kida
  • Patent number: 8336457
    Abstract: Applicants have discovered that electrostatic discharge (ESD) may, in some circumstances, result in current densities sufficient to ignite unprotected reactive composite materials. They have further discovered that a reactive composite material (RCM) can be protected from ESD ignition without adversely affecting the desirable properties of the RCM by the application of conducting and/or insulating materials at appropriate locations on the RCM. Thus ESD-protected RCM structures can be designed for such sensitive applications as ignition of propellants, generation of light bursts, and structural materials for equipment that may require controlled self-destruction.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: December 25, 2012
    Assignee: Nanofoil Corporation
    Inventors: Timothy P. Weihs, Etienne Besnoin, Ramzi Vincent, Somasundaram Valliappan, Ellen Heian, David Van Heerden, Timothy Ryan Rude, Omar Knio, Ronald Spraker, Yuping Lin
  • Publication number: 20120186476
    Abstract: An radio frequency (RF) safe, high standoff voltage, ESD protected primary explosive detonator is described. The primary explosive detonator includes an isolated spark gap (SG) circuit and one or more shunt capacitors to insulate the electric match from ignition when exposure to high stray voltage or RF occurs in oilfield applications.
    Type: Application
    Filed: April 25, 2011
    Publication date: July 26, 2012
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Christian C. Spring
  • Patent number: 7810429
    Abstract: A consumable flash tube for encapsulating igniter material in the propellant beds of propelling charges or rocket motors. The flash tube is constructed of a combustible, plastic material such as cellulose nitrate plastic or ethyl cellulose plastic. The combustible material is furnished with a filler of electrical charge dissipating material which renders the flash tube conductive. The conductive flash tube functions as an environmental housing and additionally as a grounded electrical conductor or Faraday shield so as to bleed off any inadvertent electrical charge presented to the flash tube and thus limit the charge transferred to the igniter material. Formation of the flash tube is by continuous extrusion of a mixture of the plastic material and electrical charge dissipating material into the shape of a hollow tube. After curing of the extruded tube, one end of the tube is flared to allow joining of the tube to a primer after the igniter material is positioned in the flash tube.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: October 12, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael E. Buckley, Donald R. McClure, Jesse L. East, Jr.
  • Patent number: 7748323
    Abstract: There is provided a semiconductor bridge device wherein a reaction time for generating sparks is short and a spark generating amount is large. This semiconductor bridge device comprises a substrate, a pair of land portions, a bridge portion electrically connecting between the pair of the land portions, and an electrode pad arranged on each upper surface in the pair of the land portions and emitting sparks at the bridge portion through an electric current passed between the electrode pads, in which the pair of the land portions and the bridge portion consist of a laminate formed by alternately laminating a metal layer and a metal oxide layer plural times, and an outermost layer in the laminate is a metal layer, and a metal oxide having a decomposition temperature of higher than 1500° C. is used in the metal oxide layer.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: July 6, 2010
    Assignee: Nipponkayaku Kabushikikaisha
    Inventors: Shigeru Maeda, Hirotaka Mukunoki
  • Patent number: 7617777
    Abstract: A system and method are disclosed for controlling the launch and burst of pyrotechnic projectiles in a pyrotechnic, or “fireworks”, display.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: November 17, 2009
    Assignee: MagicFire, Inc.
    Inventors: George Bossarte, Glenn W. Dillon, Paul R. McKinley, Wayne C. Haase, Larry G. Nelson
  • Patent number: 7268445
    Abstract: An airbag device includes a squib, an ignition circuit, and a noise protection circuit. The noise protection circuit includes two zener diodes whose cathodes are facing each other and connected with each other. Further, the noise protection circuit is connected in parallel with the ignition element to thereby protect the ignition circuit from noise. This decreases the number of components in the noise protection circuit to thereby achieve the compact and low-cost airbag device.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: September 11, 2007
    Assignee: DENSO CORPORATION
    Inventors: Yutaka Uono, Makoto Aso
  • Patent number: 7194959
    Abstract: A system and method are disclosed for controlling the launch and burst of pyrotechnic projectiles in a pyrotechnic, or “fireworks”, display.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: March 27, 2007
    Assignee: MagicFire, Inc.
    Inventors: George Bossarte, Glenn W. Dillon, Paul R. McKinley, Wayne C. Haase, Larry G. Nelson
  • Patent number: 7168737
    Abstract: An integrated circuit for an air bag system is used in an air bag system having an ECU and a module case connected to the ECU and accommodating a gas generator and an air bag. In the air bag system, two bus lines passing through the ECU are provided to supply currents and the like, and individual gas generators accommodated in the module cases are connected operationally by conductors branched from the bus lines. Each of the igniters incorporated in the gas generator is an electric igniter which is provided with a heat generating portion and a priming coming in contact with the heat generating portion, and the igniter and the bus line are connected to each other through the conductors, and the integrated circuit provided in the igniter is recorded with information to exhibit required functions, and a current for igniting the priming is supplied to the igniters through a capacitor.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: January 30, 2007
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Mitsuyasu Okamoto, Shingo Oda
  • Patent number: 6966261
    Abstract: 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, the inventive circuit controls the energy supplied to the fuse detonation circuit to a level that is less than a threshold level required by the fuse for detonation, thereby preventing subsequent detonation of the explosive.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: November 22, 2005
    Assignee: Alliant Techsystems Inc.
    Inventor: Robert E. Keil
  • Patent number: 6904846
    Abstract: The invention relates to a safety system for an ignition device (7), particularly a safety system for an ignition device (7) to activate an airbag, a belt tightener or a similar type safety device for use in vehicles. The ignition device can be activated by input signals which are fed via supply lines (3,4). At least one electronic component (10) is connected to the supply lines (3,4) using conductors (1), that can be stampings, and a nonconductive carrier (2) retaining the conductors 1.
    Type: Grant
    Filed: January 12, 2002
    Date of Patent: June 14, 2005
    Assignee: Hirschmann Austria GmbH
    Inventors: Martin Schmid, Manfred Mähr
  • Patent number: 6857369
    Abstract: A system and method are disclosed for controlling the launch and burst of pyrotechnic projectiles in a pyrotechnic, or “fireworks”, display.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: February 22, 2005
    Assignee: Magic Fire, Inc.
    Inventors: George Bossarto, Glenn W. Dillon, Paul R. McKinley, Wayne C. Haase, Larry G. Nelson
  • Patent number: 6739264
    Abstract: 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. Immediately before the wire leads reach the circuit board they pass through a ferrite core. The wire leads, the ferrite core, and the circuit board except for the end of the board to which the bridge resistor is mounted, is insert molded into a body of glass filled nylon 6,6. The nylon body mounts an aluminum can that covers the bridge resistor and is bonded to a circumferential groove in the nylon body. The bridge resistor is covered with primary explosives such as zirconium potassium perchlorate and the can is filled with gas generating granules such as 5-aminotetrazole.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: May 25, 2004
    Assignee: Key Safety Systems, Inc.
    Inventors: Edward O. Hosey, Keith Lam
  • Patent number: 6732655
    Abstract: A firing device, in which electrostatic chargings do not lead to an unintentional triggering of the firing element, is composed of a module housing in which a firing element and a circuit means arrangement are arranged, and which has terminal posts that, on the one side, are contacted to the circuit arrangement, and on the other side, are brought out from the module housing for the connection to a plug connector. The firing device includes at least one conductive member that is contacted to the firing capsule and that has a defined distance to the individual terminal posts, such that, in response to an electrical charging, a voltage sparkover occurs between the terminal posts and the conductive member.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: May 11, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Gert Jakob, Werner Nitschke, Ralf Hauser, Martin Zywietz
  • Patent number: 6732656
    Abstract: A fiber-optically-and-pneumatically-controlled firing set for explosive-bridgewire detonators. The firing set consists of a detonation-controlling module and a battery-operated firing module that are interconnected by fiber-optic signal conductors and a pneumatic conduit. The firing set provides high voltage isolation between the control module and the firing module while employing redundant safety features including fail-safe pneumatic crowbar shunting of the firing module output, frequency-selective fiber-optic signal communication, controlled battery life and explosive material detonation enablement and multiple, fail-safe serial switching to control the energy transfer sequence in the firing module. Both high voltage and low potential uses of the invention are included.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: May 11, 2004
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Mark W. Heyse, Ronald E. Stearns, Marcus A. Cash
  • Patent number: 6659011
    Abstract: A device for triggering an airbag having a controller, a trigger, electric lines between the controlled device and the trigger and a coil for attenuating high-frequency interference currents connected to the electric lines which in turn induces interference current into the lines as a result of an external magnetic alternating field. The attenuation of the induced interference current results from an external magnetic alternating field of the coil and a compensating coil is connected in the electric lines and arranged in the surrounding area of the coil so that the amount of current induced in the compensating coil is equal to that of the interference current induced in the coil by the external field and because they are in anti-phase, the resultant current is zero from any interference.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: December 9, 2003
    Assignee: DaimlerChrysler AG
    Inventors: Michael Daiss, Klaus-Dieter Löwen, Matthias Reinhardt
  • Publication number: 20030213395
    Abstract: An airbag igniter (10) comprises a cup-shaped metal can (12) with a ceramic disc (14) having a conductive metal plating pattern (16) thereon positioned within the metal can (12). An RF filtering unit (18) is fixed to the disc (14). Two gold-plated, electrically conductive pins (20, 22) pass through the disc (14) and make appropriate electrical connection to the RF filtering unit (18). A sealing material (24) encloses the unit, filling the remaining volume of the cup-shaped can (12).
    Type: Application
    Filed: September 30, 2002
    Publication date: November 20, 2003
    Inventor: Douglas T. Baldensperger
  • Patent number: 6622627
    Abstract: Actuator apparatus comprising an actuator including an at least partially hollow housing, a cap element removably mountable on the actuator, and a coil of electrical wire disposed inside the housing, a first portion of the coil being arranged for electrical connection with an electrical connector separate from the actuator and a second portion of the coil being arranged for electrical connection with the cap element, the coil being unwindable outwards from the housing.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: September 23, 2003
    Inventor: Arie Sansolo
  • Patent number: 6588342
    Abstract: A frequency addressable ignitor control device utilizes electronic bandpass filters tuned to a unique center frequency and bandwidth for each ignitor. Energy generated by the system's controller comprises one or more narrow pulses whose center frequency corresponds to one or more bandpass filter/ignitor assemblies and sufficient energy for activation. A plurality of bandpass filter/ignitor assemblies are connected in parallel in the system. The controller generates electrical pulses of different frequencies transferred to the plurality of bandpass filter/ignitor assemblies via a two wire ignitor bus. Bandpass filter/ignitor assemblies whose filter allows sufficient energy to pass to an ignitor bridge element initiates the ignitor's explosive charge.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: July 8, 2003
    Assignee: Breed Automotive Technology, Inc.
    Inventors: James W. Griggs, III, Scott D. Gagnon, Clinton Boyd, J B Canterberry
  • Patent number: 6564715
    Abstract: A frequency addressable ignitor control device utilizes electronic bandpass filters tuned to a unique center frequency and bandwidth for each ignitor. Energy generated by the system's controller comprises one or more narrow pulses whose center frequency corresponds to one or more bandpass filter/ignitor assemblies and sufficient energy for activation. A plurality of bandpass filter/ignitor assemblies are connected in parallel in the system. The controller generates electrical pulses of different frequencies transferred to the plurality of bandpass filter/ignitor assemblies via a two wire ignitor bus. Bandpass filter/ignitor assemblies whose filter allows sufficient energy to pass to an ignitor bridge element initiates the ignitor's explosive charge.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: May 20, 2003
    Assignee: Breed Automotive Technology, Inc.
    Inventors: James W. Griggs, III, Scott D. Gagnon, Clinton Boyd, J B Canterberry
  • Patent number: 6553910
    Abstract: An electromagnetically lossy liquid- or gas-tight fusion seal for use as a low pass radio frequency signal filter constructed as a matrix of glass binder and ferrimagnetic and/or ferroelectric filler. Metal cased electrical filters are made by reflowing the material to form fused glass-to-metal seals and incorporating electrical thru-conductors therein which may be formed as inductive windings.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: April 29, 2003
    Inventor: Homer William Fogle, Jr.
  • Patent number: 6539875
    Abstract: An electro-pyrotechnic initiator suitable for use in igniting a pyrotechnic generator of gas for inflating an air bag, said initiator being connected to an electric cable comprising two conductive wires, said initiator comprising: (i) a thermosensitive charge which is carried by a heating resistive element consisting of a resistive strip and which is initiatable by said heating resistive element, ((ii) an electric circuit connecting said resistive element to said conductive wires, and (iii) means of electromagnetically protecting said electric circuit, said heating resistive element, said electric circuit and said means of electromagnetically protecting being integrated into a circuit of conductive strips which are joined to said conductive wires and which are printed on a support, said support being in the form of a thin parallelepedial card with two opposite flat faces, said conductive strips being printed on the same face of said support to provide a complete circuit comprising said conductive strips, t
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: April 1, 2003
    Assignee: Livbag S.N.C.
    Inventors: Daniel Duvacquier, Christian Perotto
  • Patent number: 6490977
    Abstract: A system and method are disclosed for controlling the launch and burst of pyrotechnic projectiles in a pyrotechnic, or “fireworks”, display.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: December 10, 2002
    Assignee: MagicFire, Inc.
    Inventors: George Bossarte, Glenn W. Dillon, Paul R. McKinley, Wayne C. Haase, Larry G. Nelson
  • Patent number: 6477957
    Abstract: An ignition device for a safety system such as an air bag or seat belt tightener for a motor vehicle having an ignition element and associated EMC protection means. The EMC protection means may comprise an EMC suppression comprising a ferrite core, which is encapsulated resistant to pressure. Encapsulation in a pot-like housing or between two half shells, with or without an intermediate coating, aids pressure resistance. Terminal means, such as terminal contacts or lugs, extends through the encapsulation to operatively connect the ignition element and the system's controls.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: November 12, 2002
    Assignee: Hirschmann Austria GmbH
    Inventors: Günther Schmid, Martin Schmid
  • Patent number: 6476464
    Abstract: The invention provides a lead structure having a lead of low resistance material disposed within a surrounding sleeve or collar of low expansion material which is bonded at one end to the lead. The sleeve or collar is bonded on its outer surface to an insulating wall through which the lead structure extends. The lead is preferably copper and the sleeve or collar is preferably a nickel-alloy. The lead is hermetically sealed to the surrounding sleeve, and the sleeve is hermetically sealed to the insulating wall to provide a hermetic structure which does not detract from the use of high conductivity electrical lead materials which are often not employable in conventional hermetic sealed leads or packages. A plurality of lead structures can be employed in one or more walls of a circuit package.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: November 5, 2002
    Assignee: Ixion, LLC
    Inventor: Jay Greenspan
  • Publication number: 20020108523
    Abstract: The present invention comprises a capacitor, of sufficient area to cover the glass seal of a cartridge actuated ordnance device, comprising a low pass filter. This capacitor connects to the leads of the cartridge actuated ordnance device in a fashion that covers the glass seal of the cartridge. Although the capacitor is not directly contacting the glass seal, it is located proximately so that very few frequencies of EMR can enter the seal, wherein a safe level of EMR is achieved. The capacitor also filters both EMR and ESD that come through the leads of the cartridge.
    Type: Application
    Filed: February 9, 2001
    Publication date: August 15, 2002
    Inventors: John A. Nial, J. David DeLeon, Nickolas Kaloterakis, Thomas K. Kang
  • Patent number: 6422145
    Abstract: The controlled electromagnetic induction detonation system for initiation of a detonatable material system includes an automated radio charge (ARCH) module connectable to an electric detonator, a transducer module for providing operational power by electromagnetic induction to the ARCH module, and a remote controller for sending instructions to the transducer module from a location remote from the detonator. Upon completion of an arming sequence, the transducer module generates an electromagnetic field which is picked up by a coil in the ARCH module and used to power the ARCH module and provide a detonation current for the detonator. The transducer module or at least a coil thereof which produces the electromagnetic field is supported on or in a stemming bar which in turn acts as a core of an electromagnet confining the magnetic flux for pick up by the ARCH module.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: July 23, 2002
    Assignee: RockTek Ltd.
    Inventors: Mihailo Gavrilovic, Keith Wright
  • Patent number: 6418853
    Abstract: The electropyrotechnic igniter (1) comprises a body divided into a downstream chamber and an upstream chamber by a discoid metal piece (8), the downstream chamber containing a resistive heating element (11), a pyrotechnic initiating composition (12) and a pyrotechnic ignition composition (7), and the upstream chamber containing a rectangular electronic card (17) extended by three external metal pins (29 to 31), on which electronic card conducting tracks are provided. Two metal connection pins (13, 14) pass through the discoid metal piece (8) and connect the said conducting tracks to the resistive heating element (11). A means of intercommunicating and of triggering a train of specific electric pulses as well as a means of storing electrical energy are connected to the conducting tracks. This igniter is more especially intended to be used in motor-vehicle safety, especially for constituting the device for igniting a gas generator associated with an airbag.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: July 16, 2002
    Assignee: Livbag SNC
    Inventors: Jean-Rene Duguet, Jean-Pierre Vedel
  • Publication number: 20020078848
    Abstract: The invention relates to an initiator for a pyrotechnic gas generator intended for motor vehicle safety.
    Type: Application
    Filed: January 7, 2002
    Publication date: June 27, 2002
    Inventors: Daniel Duvacquier, Christian Perotto
  • Patent number: 6408758
    Abstract: The present invention relates to the field of electropyrotechnic initiators comprising a thick-film multifoil circuit. The electrical circuit is photoetched on an insulating support (16). It consists of a resistive first foil having a central part (17) of constant width. This first foil is covered, except on the central part (17), by two conducting areas (28, 29) made of copper. The circuit (18) has an outline consisting of curved lines whose radius is greater than 7×10−4 m and whose shortest distance from the edge of the support (16) is at least 35×10−5 m. Such an initiator has an enhanced electrostatic discharge resistance.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: June 25, 2002
    Assignee: Livbag SNC
    Inventor: Jean-René Duguet
  • Patent number: 6389972
    Abstract: The invention relates to an initiator for a pyrotechnic gas generator intended for motor vehicle safety. The initiator (2) is built from a circuit support (10) on which conductive strips are printed which include electromagnetic protection and the ends of which are joined together by a resistive element covered with a thermosensitive charge (6). The conductive strips are connected to an electric cable (3). The support (10) is coated in a cylindrical overmoulded insulation (4, 5). A fragmentable cylindrical cap (8) containing an igniter composition (9) forms, together with the initiator (2), an igniter (1) for pyrotechnic generators intended for motor vehicle safety.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: May 21, 2002
    Assignee: Livbag S.N.C.
    Inventors: Daniel Duvacquier, Christian Perotto
  • Publication number: 20020053298
    Abstract: An electromagnetically lossy liquid- or gas-tight fusion seal for use as a low pass radio frequency signal filter constructed as a matrix of glass binder and ferrimagnetic and/or ferroelectric filler. Metal cased electrical filters are made by reflowing the material to form fused glass-to-metal seals and incorporating electrical thru-conductors therein which may be formed as inductive windings.
    Type: Application
    Filed: November 24, 1997
    Publication date: May 9, 2002
    Inventor: HOMER WILLIAM FOGLE
  • Patent number: 6357355
    Abstract: A pyrotechnic device comprises a body of ignitable material (66). A pair of electrodes (44) and (52) provide electrical energy to heat and ignite the body of pyrotechnic material (66). The electrodes (44) and (52) extend through an electrical insulation housing (78). The electrical insulation housing (78) has surfaces defining a chamber (92) through which the electrodes (44) and (52) pass. A body (94) of a solid electromagnetically lossy, substantially gas impermeable material is positioned within the chamber (92). The lossy material comprises a vitreous ceramic matrix consisting essentially of about 5% to about 50% by weight of a multi-component glass binder and about 50% to about 95% by weight of an electromagnetically lossy ferromagnetic and/or ferroelectric filler. The body (94) of lossy material is fused to the surfaces defining the chamber (92) in the electrical insulation housing (78) and to the electrodes (44) and (52).
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: March 19, 2002
    Assignee: TRW Inc.
    Inventor: Homer W. Fogle, Jr.
  • Patent number: 6302023
    Abstract: The invention relates to a detonator for a pyrotechnical gas generator (3), comprising a squib (9) arranged therein, contact lines (13) for said squib and a high-frequency choke to prevent spurious release, characterized in that the contact lines (13) are extrusion-coated with an electrically non-conducting material (17) or are encapsulated in said material to form a base body, and in that at least one ferromagnetic body (21, 23) and the base body are assembled to form a unit which acts as a high-frequency choke.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: October 16, 2001
    Assignee: TRW Occupant Restraint Systems GmbH & Co. KG
    Inventor: Franz Wier
  • Publication number: 20010022146
    Abstract: The invention relates to an initiator for a pyrotechnic gas generator intended for motor vehicle safety.
    Type: Application
    Filed: March 9, 1998
    Publication date: September 20, 2001
    Inventors: DANIEL DUVACQUIER, CHRISTIAN PEROTTO
  • Patent number: 6274951
    Abstract: An EMI energy absorber for use with an electrical circuit, such as a hot wire air flow sensor, which has at least one electrical element which exhibits antenna characteristics at a predetermined frequency range for the EMI. The energy absorber includes a component, such as a ferrite bead, which is electrically connected in series with the element of the electrical circuit. This component exhibits a resistance which varies as a function of frequency and has a maximum resistance within the predetermined frequency range. Thus, the component functions to absorb the EMI and dissipate the EMI as heat.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: August 14, 2001
    Assignee: Hitachi America, Ltd.
    Inventors: George Saikalis, Shigeru Oho
  • Patent number: 6220163
    Abstract: The electro-pyrotechnic initiation system preferably comprises an electro-pyrotechnic initiator (1) consisting especially of an insulating support (14) over which a flat resistive heating element (3) and two separate conductive metal areas (15, 16) are extended, the said resistive heating element and the said conductive metal areas being electrically connected to a current source (2) by means of two electrodes (9, 10). A conductive filter device (5), connected in parallel with the said resistive heating element (3), is divided into a varistor (6) and into a capacitor (7) which are connected to the electrodes (9, 10). This conductive filter device (5) has an equivalent resistance which varies depending on the measured electric potential difference between the two electrodes (9, 10) and ensures that the initiator (1) is not operated when the latter is subjected to a high-voltage electrostatic discharge.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: April 24, 2001
    Assignee: Livbag SNC
    Inventors: Jean-René Duguet, Jean-Pierre Vedel
  • Patent number: 6192802
    Abstract: An electro-explosive device (“EED”) having resistors fabricated on a thermally conductive substrate and interconnected by a central bridge element. The resistance of the bridge element is lower than that of the resistors, which have a larger surface area to volume ratio. The conductive bridge of the EED is overcoated with a composite overcoat comprising a metal and an oxidizer, which produce a chemical explosion upon plasma vaporization of the conductive bridge.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: February 27, 2001
    Assignee: Auburn University
    Inventor: Thomas A. Baginski
  • Patent number: H2038
    Abstract: The present invention comprises a capacitor, of sufficient area to cover the glass seal of a cartridge actuated ordnance device, comprising a low pass filter. This capacitor connects to the leads of the cartridge actuated ordnance device in a fashion that covers the glass seal of the cartridge. Although the capacitor is not directly contacting the glass seal, it is located proximately so that very few frequencies of EMR can enter the seal, wherein a safe level of EMR is achieved. The capacitor also filters both EMR and ESD that come through the leads of the cartridge.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: August 6, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John A. Nial, J. David DeLeon, Nickolas Kaloterakis, Thomas K. Kang