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Class Information
Number: 361/247
Name: Electricity: electrical systems and devices > Igniting systems
Description: Subject matter relating to electrical systems which cause the rapid combustion of a fuel or the detonation of an explosive charge.










Sub-classes under this class:

Class Number Class Name Patents
361/253 For electric spark ignition 100
361/248 For explosive devices 72
361/264 For incandescent ignition 68


Patents under this class:
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Patent Number Title Of Patent Date Issued
8653693 Integrated exciter-igniter Feb. 18, 2014
8654501 Low-, medium-, or high-voltage switching device with chemical charge means Feb. 18, 2014
8638540 Corona igniter including ignition coil with improved isolation Jan. 28, 2014
8547680 Ignition system, gas generating device for airbag, and gas generating device for seatbelt pretensioner Oct. 1, 2013
8456794 Clock-pulsed safety switch Jun. 4, 2013
8395878 Methods of controlling components of blasting apparatuses, blasting apparatuses, and components thereof Mar. 12, 2013
8387598 Ignition system open secondary detection Mar. 5, 2013
8385042 Selective control of wireless initiation devices at a blast site Feb. 26, 2013
8243415 Ignition plug and ignition system Aug. 14, 2012
8203822 Digital squib driver circuit Jun. 19, 2012
8179657 Emission analyzer May. 15, 2012
8074864 Ignition source system for an exothermic reaction mold device Dec. 13, 2011
8045317 Current limited voltage source with wide input current range Oct. 25, 2011
8027142 Current-protected driver circuit for ignition exciter unit Sep. 27, 2011
7975900 Ignition source system for an exothermic reaction mold device Jul. 12, 2011
7940513 Switch arrangement, integrated circuit, activation system May. 10, 2011
7923662 Stable initiator compositions and igniters Apr. 12, 2011
7913623 MEMS fuze assembly Mar. 29, 2011
7848078 Method of communication at a blast site, and corresponding blasting apparatus Dec. 7, 2010
7791858 Data communication in electronic blasting systems Sep. 7, 2010
7748323 Semiconductor bridge device and igniter including semiconductor bridge circuit device Jul. 6, 2010
7688566 Electric firing device for fireworks Mar. 30, 2010
7643267 Optical emission spectrometry device Jan. 5, 2010
7552680 Full function initiator with integrated planar switch Jun. 30, 2009
7543532 Full function initiator with integrated planar switch Jun. 9, 2009
7505244 Micro-switches for downhole use Mar. 17, 2009
7352556 Charging method for squib Apr. 1, 2008
7286333 Switch card apparatus and methods Oct. 23, 2007
7281478 Assembled cathode and plasma igniter with such cathode Oct. 16, 2007
7245224 Methods and systems for diagnosing projection device failure Jul. 17, 2007
7236345 Compact monolithic capacitive discharge unit Jun. 26, 2007
7215528 Turn-on coil driver for eliminating secondary diode in coil-per-plug ignition coils May. 8, 2007
7142407 Squib driver for airbag application Nov. 28, 2006
7116542 Micro-switches for downhole use Oct. 3, 2006
7095601 High energy primary spark ignition system for a gas turbine engine Aug. 22, 2006
7054131 Pre-fire countdown in an electronic detonator and electronic blasting system May. 30, 2006
6992877 Electronic switching system for a detonation device Jan. 31, 2006
6972529 Switch mode power supply for a gas discharge lamp Dec. 6, 2005
6785116 Triggering unit controlled by a microprocessor for initiating pyrotechnical elements Aug. 31, 2004
6781813 Release element for initiating pyrotechnics Aug. 24, 2004
6754063 Electric gas lighter Jun. 22, 2004
6618237 System for the initiation of rounds of individually delayed detonators Sep. 9, 2003
6557474 Initiator header subassembly for inflation devices May. 6, 2003
6418005 Power circuit breaker Jul. 9, 2002
6343000 Ignition device and method for manufacturing thereof Jan. 29, 2002
6324046 Actuator circuit for dual-solenoid gas valve Nov. 27, 2001
6280054 Image generator having an improved illumination system Aug. 28, 2001
6262875 Ignition/firing element with an ignition bridge arranged on a chip Jul. 17, 2001
6222719 Ignition boost and rectification flame detection circuit Apr. 24, 2001
6195247 Exciter controlled by FADEC system Feb. 27, 2001

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