| Patents for A62C 4 - Flame traps allowing passage of gas but not of flame or explosion wave (753) |
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| 01/11/2012 | CN202105350U Fire arrestor cleaning device |
| 01/04/2012 | CN202096628U Gas backfire-preventing device |
| 12/29/2011 | WO2011005891A8 Flashback shut-off |
| 12/28/2011 | CN102294087A 抽屉式阻火器 Drawer flame arrester |
| 12/21/2011 | CN202079064U 防爆阻隔器 Explosion blocker |
| 12/14/2011 | CN202070049U 生物质烟气火星熄灭装置 Biomass smoke Mars blanker |
| 12/14/2011 | CN102274597A 一种管道阻火器 One kind of Pipeline Fire |
| 12/08/2011 | WO2011151377A1 Improved device for limiting the consequences of conflagration in a room |
| 12/08/2011 | CA2800902A1 Improved device for limiting the consequences of a widespread fire in premises |
| 11/30/2011 | EP2390640A1 Gauge pressure sensor for hazardous applications |
| 11/23/2011 | CN202044683U Flame arrester for petroleum gas pipeline |
| 11/10/2011 | WO2011138325A1 Pressure-relief device for a housing enclosed in a pressure-proof manner |
| 11/09/2011 | CN202028074U Corrugated heat-dissipating type flame arrester |
| 11/02/2011 | CN202023745U Fireproof ventilator |
| 11/02/2011 | CN202020815U Combined-type pipeline fire arrestor |
| 11/02/2011 | CN202020814U Improved fire barrier |
| 11/02/2011 | CN202020813U Fire barrier |
| 11/02/2011 | CN202020812U Fire-proof regulation valve |
| 11/01/2011 | CA2526788C Permanently fireproof flame guard |
| 10/26/2011 | CN102225226A Fire extinguishing device for biomass flue gas |
| 10/05/2011 | CN102207029A Method for comprehensively utilizing oil shale refining residual gas |
| 09/21/2011 | CN201978377U 阻火器 Zuhuo |
| 08/31/2011 | CN201953469U Comprehensive utilization system for residual gas of oil shale refining |
| 08/31/2011 | CN201949526U 一种新型阻火器 A new flame arrester |
| 08/31/2011 | CN201949525U 一种阻火器 One kind of flame arrester |
| 08/31/2011 | CN101227955B Apparatus and method for inhibiting propagation of a flame front |
| 08/24/2011 | CN101530656B Automatic type detonation-hindered flame arrester |
| 08/17/2011 | CN201930429U 特种氧气阻火器 Special oxygen flame arrester |
| 08/17/2011 | CN101825192B Fireproof valve for oil smoke pipeline of setting machine |
| 08/03/2011 | CN101825193B Fireproof valve for oil smoke pipeline of setting machine |
| 07/28/2011 | DE102010005552A1 Spark discharging method for use in pipeline in e.g. wood processing machine, involves introducing extinguishing agent in pipeline, so that part of spraying direction of flow direction is provided opposite to predominant part of agent |
| 07/27/2011 | CN201906376U Fireproof alarm check valve device for flue |
| 07/27/2011 | CN201906375U Smoke exhaust fireproof valve |
| 07/13/2011 | CN102120069A Methane desulfurizer capable of preventing tempering and dry combustion |
| 06/22/2011 | CN201874645U Explosion-proof flame arrester |
| 06/22/2011 | CN201871152U Special fire arrestor for pipeline |
| 06/15/2011 | EP2332617A1 Flame barrier for air extraction assemblies |
| 06/07/2011 | US7955073 Flame arrester arrangement and method of incorporating bores in a flame arrester arrangement |
| 05/19/2011 | WO2011059676A1 Inline plug flame arrestors |
| 05/19/2011 | CA2780521A1 Inline plug flame arrestors |
| 05/18/2011 | CN101254332B Explosion prevention back-fire relief type separator for water and vapor |
| 05/11/2011 | CN201823197U Oil-smoke-exhausting fireproof check valve |
| 05/11/2011 | CN201823196U Prewarning device for failure of fire arrestor failure |
| 05/11/2011 | CN201823195U Flame arrester of guide plate |
| 05/11/2011 | CN201823194U Flame arrester for gas pipeline |
| 05/11/2011 | CN102049113A Flame arrester |
| 05/04/2011 | CN102039017A Novel flame arrestor |
| 04/27/2011 | CN201807113U Non-return fireproof valve of shared smoke discharging pipeline for high building |
| 04/20/2011 | CN101134178B Fire scene smoke expelling device |
| 04/13/2011 | CN201791290U Variable-pressure oil fume exhaust fireproofing check valve |
| 04/12/2011 | CA2287475C Waste fire suppression control device |
| 04/06/2011 | CN201787139U Coupling type check valve capable of discharging oil and smoke and resisting fire |
| 04/06/2011 | CN201783113U Novel backfire explosion-proof device |
| 04/06/2011 | CN1961993B Fire-proof valve structure used specifically in discharge flue of kitchen and rest room |
| 04/05/2011 | US7918664 Permanently fireproof flame guard |
| 03/30/2011 | CN101994548A Anti-explosion flame arrester |
| 03/16/2011 | CN201760011U Back-fire resisting device |
| 02/16/2011 | CN101972529A Copper foil explosion-proof material and preparation method thereof |
| 01/26/2011 | CN201719728U Spark arrester used for flue gas pipeline |
| 01/19/2011 | CN101947374A Flame arrester |
| 01/13/2011 | WO2011005891A1 Flashback shut-off |
| 01/13/2011 | WO2011005875A1 Detonation wave arrestor |
| 01/13/2011 | CA2769291A1 Detonation wave arrestor |
| 01/12/2011 | CN101940825A Oil gas explosion suppression method in restricted space |
| 01/05/2011 | CN201696687U Shared exhaust duct fire-resistant check valve |
| 01/05/2011 | CN101095973B Fire-preventing check valve |
| 12/22/2010 | CN101920080A Flame arrester arrangement |
| 12/16/2010 | DE102009024814A1 Flammensperranordnung Flame arrester arrangement |
| 12/15/2010 | EP2260906A1 Flame inhibitor assembly |
| 12/09/2010 | CA2706196A1 Flame arrester arrangement |
| 11/24/2010 | CN201643935U Explosionproof-type combustible explosive gas absorption apparatus |
| 11/24/2010 | CN201643490U Sewage gas flame arrestor |
| 11/17/2010 | CN101176813B Bidirectional flame arrester |
| 11/11/2010 | US20100282479 Explosion arresting equipment with disassembleable housing, especially for pipe systems |
| 11/03/2010 | CN201621751U Fire-resistant kitchen ventilator |
| 11/03/2010 | CN201618337U Suppression device of fuel-air explosion in confined space |
| 11/03/2010 | CN101435584B Explosion-proof apparatus |
| 10/27/2010 | CN201615512U 一种集成环保灶 An integrated environmental foci |
| 10/20/2010 | CN201611115U 一种集成环保灶 An integrated environmental foci |
| 10/20/2010 | CN201610961U 变压式排油烟气防火止回阀 Swing check valve type exhaust fumes from gas fire |
| 10/20/2010 | CN201609563U 用于秸秆气化炉系统的阻火器 Arrester for straw gasifier system |
| 10/06/2010 | CN201596273U 阻火通风闸口装置 Fire ventilation gate device |
| 10/05/2010 | CA2496674C Flame arrestor |
| 10/05/2010 | CA2442148C Fire and explosion suppression |
| 09/29/2010 | CN201591925U Fireproof valve |
| 09/15/2010 | CN201578781U Anti-backfire, anti-dry heating biogas desulphurizer |
| 09/08/2010 | CN101825193A Fireproof valve for oil smoke pipeline of setting machine |
| 09/08/2010 | CN101825192A Fireproof valve for oil smoke pipeline of setting machine |
| 09/02/2010 | US20100218963 Explosion Protection Valve |
| 09/02/2010 | US20100218958 Detonation flame arrester |
| 08/25/2010 | CN201558429U Side open type fireproofing check valve |
| 08/18/2010 | CN201555280U Fireproof cover for range hood and cooker all-in-one machine |
| 08/11/2010 | CN201543146U Dedicated fire arrestor for pipelines |
| 07/14/2010 | CN101032656B Operating mechanism of valve for removing flue gas and preventing fire |
| 06/30/2010 | EP2201983A1 Safety device for gas conducting systems |
| 06/23/2010 | EP2198931A1 Method and apparatus for extinguishing sparks transported by a stream of gas |
| 06/16/2010 | CN101732933A Explosion venting device on dust collector |
| 06/09/2010 | CN201500399U Simple fire retarding device of check valve |
| 06/09/2010 | CN101721780A Flame filter |
| 05/26/2010 | CN201487352U Fire-resisting damper used in fume pipeline of setter |