| Patents for A62C 4 - Flame traps allowing passage of gas but not of flame or explosion wave (753) |
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| 04/10/2013 | EP2576001A1 Improved device for limiting the consequences of conflagration in a room |
| 04/10/2013 | CN103037953A Improved device for limiting the consequences of conflagration in a room |
| 04/10/2013 | CN103028215A Flange leakage protection type flame retardant device |
| 03/27/2013 | CN202822545U Flame damper |
| 03/20/2013 | CN202802597U Deflagration-resistant type pipeline flame arrester |
| 03/20/2013 | CN202802596U Drawer type flame arrester |
| 03/20/2013 | CN202802595U Gravel flame arrester |
| 03/20/2013 | CN202802594U Gas pipeline fire arrester with safety net |
| 03/20/2013 | CN202802593U Civilian safe fire-arresting device |
| 03/20/2013 | CN202802592U Gas transmission controllable fireproof mechanism |
| 03/20/2013 | CN202802591U Safety system for automatically closing gas pipeline |
| 03/20/2013 | CN202802590U Triangular fire-arresting core based fire protection device |
| 03/20/2013 | CN202802589U Bubble-cap type overflow water-seal flame arrester |
| 03/20/2013 | CN202802588U Pipeline flame arrester |
| 03/20/2013 | CN202802587U Wire-port flame arrester |
| 03/20/2013 | CN202802586U Fuel flame arrestor |
| 03/18/2013 | DE202013101063U1 Vorrichtung zur Funkenlöschung in einer Rohrleitung Spark arresting device in a pipeline |
| 03/13/2013 | EP2566585A1 Pressure-relief device for a housing enclosed in a pressure-proof manner |
| 03/13/2013 | CN202777537U Explosion-proof corrugated fire-arresting core type fire arrester |
| 03/13/2013 | CN202777536U Combined fuel gas pipeline flame arrester |
| 03/13/2013 | CN202777535U Flame arresting system embedded with telescopic pressure spring |
| 03/13/2013 | CN202777534U Inner wall multi-stage fire extinguishing device |
| 03/13/2013 | CN202777533U Safe fire retardant mechanism used for soft gas pipeline |
| 03/13/2013 | CN202777532U Explosion-proof and fire-retardant device |
| 03/13/2013 | CN202777531U Negative pressure fire extinguishing system based on flame arrester |
| 03/13/2013 | CN202777530U Gas pipe flame arrester with automatic safety valve inside |
| 03/13/2013 | CN202777529U Flame arrester device based on soft gas pipeline |
| 03/13/2013 | CN202777528U Safety device for automatically cutting off fuel gas supply |
| 03/13/2013 | CN202777527U Explosion-proof flame arrester for gas pipeline |
| 03/13/2013 | CN202777526U Fire-arresting core consisting of corrugated steel belt and fire-arresting mechanism consisting of fire-arresting core |
| 03/13/2013 | CN202777525U Novel flame arrester based on gas pipeline |
| 03/13/2013 | CN202777524U Flame arrester based on civil gas pipeline |
| 03/13/2013 | CN202777523U Gas supply automatic cut-off flame arrester based on C grade gas |
| 03/13/2013 | CN202777522U Explosion-proof corrugated fire-arresting core type fire arrester |
| 03/13/2013 | CN202777521U Dustproof fire arrester |
| 03/13/2013 | CN202777520U Safety device capable of preventing tempering explosion |
| 03/07/2013 | WO2013029735A1 Pressure relief device for a bursting element |
| 03/07/2013 | DE102011112123A1 Druckentlastungsvorrichtung für ein Berstelement Pressure relief device for a rupture |
| 02/27/2013 | CN202751718U Backfire preventer with safety pressure release device |
| 02/27/2013 | CN102940943A Wave-absorption vibration-reduction silk screen fire-resistance explosion-suppression apparatus |
| 02/27/2013 | CN102940942A Wave-absorption shock-absorption corrugated fire-resistance explosion-suppression apparatus |
| 02/20/2013 | CN202748188U Flame arrester used for process transmitter |
| 01/30/2013 | CN202699919U Fire preventing device capable of automatically closing gas flues and air ducts |
| 01/23/2013 | CN102889661A Building ventilator with fireproof valve |
| 01/16/2013 | CN202666231U Corrugated plate type flame arrester for gas intake of explosion-proof diesel engine |
| 01/10/2013 | WO2012097060A3 Methods of reducing flame propogation in systems with a flammable refrigerant |
| 01/09/2013 | CN101947374B Flame arrester |
| 01/02/2013 | CN202637777U Flame-insulation explosion-proof device and flame-insulation explosion-proof emergency system |
| 12/27/2012 | WO2012125627A3 Flame arrestor for process transmitter |
| 12/26/2012 | CN202620533U Flame arrester |
| 12/12/2012 | CN101994548B Anti-explosion flame arrester |
| 12/06/2012 | DE102007023381B4 Vorrichtung zur Verhinderung des Durchschlagens einer Flamm- und/oder Explosionsfront A device for preventing strike through a flame and / or explosion front |
| 11/21/2012 | CN202543341U Explosion-proof device for oxyhydrogen generator |
| 11/21/2012 | CN102784447A Flame arrester cleaning apparatus |
| 10/24/2012 | CN202497629U Pore plate type spark and particle blocking device |
| 10/24/2012 | CN101198380B Detonation flame arrester |
| 10/17/2012 | CN102294087B Drawer-type flame arrester |
| 10/10/2012 | CN202478443U Corrugated plate type fire resistant core structure |
| 10/03/2012 | CN202459902U Flame arrester for tail gas of polymerizing kettle |
| 10/03/2012 | CN102698391A Improved flame arrester |
| 10/03/2012 | CN102698390A Combined-type pipeline flame arrester |
| 10/03/2012 | CN102698389A Flame arrester |
| 09/26/2012 | CN202452630U Construction ventilator with fire-proof valve |
| 09/26/2012 | CN202446701U Fire-retardant respirator of oil storage tank |
| 09/26/2012 | CN102688574A Flame arrester for gasifier system |
| 09/26/2012 | CN102688573A Oil gas pipeline flame arrester |
| 09/26/2012 | CN102688572A Sulfur disinfection flame arrester |
| 09/26/2012 | CN102688571A Novel flame arrester |
| 09/20/2012 | WO2012125627A2 Flame arrestor for process transmitter |
| 09/20/2012 | CA2823785A1 Flame arrestor for process transmitter |
| 09/19/2012 | EP2498877A1 Inline plug flame arrestors |
| 09/19/2012 | CN102680163A Flame arrestor for process transmitter |
| 09/19/2012 | CN101940825B Oil gas explosion suppression method in restricted space |
| 09/12/2012 | CN102225226B Fire extinguishing device for biomass flue gas |
| 09/05/2012 | CN102655913A Inline plug flame arrestors |
| 09/05/2012 | CN102652865A Fire arrester |
| 08/22/2012 | CN102648025A Detonation wave arrestor |
| 07/26/2012 | WO2012062285A3 Safety fitting for blocking a line |
| 07/26/2012 | WO2012062284A3 Safety fitting |
| 07/19/2012 | CA2824177A1 Methods of reducing flame propogation in systems with a flammable refrigerant |
| 07/11/2012 | CN102553108A Orifice-plate spark particle obstructing device |
| 07/05/2012 | DE102010056590A1 Flammendurchschlagsicherung The flame arrestor |
| 05/30/2012 | CN202236972U Fire-proofing air brake capable of being bilaterally controlled |
| 05/23/2012 | CN102462909A 一种易燃气体集气包主管路燃气阻火器 Set a flammable gas air bag gas flame arrester in charge of road |
| 05/23/2012 | CN102462908A 一种易燃气体集气包支管燃气阻火器 A flammable gas manifolds sets the air bag gas flame arrester |
| 05/18/2012 | WO2012062285A2 Safety fitting for blocking a line |
| 05/18/2012 | WO2012062284A2 Safety fitting |
| 05/16/2012 | EP2451538A1 Detonation wave arrestor |
| 04/25/2012 | CN202203473U 阻火放散阀 Fire relief valve |
| 04/25/2012 | CN202199006U 稳定性粉末冶金氢氧焰阻火器 Stability hydroxide flame arrester PM |
| 04/18/2012 | CN202191619U 氯化氢合成尾气放空阻火器 Hydrogen chloride synthesis exhaust vent flame arrester |
| 04/04/2012 | CN101015729B 抑制可燃物爆炸传播的方法及装置 Method and apparatus for inhibiting the spread of combustible explosion |
| 03/22/2012 | DE102009054479A1 Flammensperre für Absauganlagen Flame arrestor for suction |
| 03/14/2012 | CN202166140U 带有防火阀门的建筑通风器 With fireproof building ventilation valve |
| 02/29/2012 | CN202151473U 一种管道阻火器 One kind Pipeline Fire |
| 02/16/2012 | DE102010050782A1 Sicherheitsarmatur zum Sperren einer Leitung Safety device for locking a line |
| 02/02/2012 | WO2012013138A1 Fire damper for ventilation fan |
| 02/01/2012 | CN202128832U 改进型抽屉式阻火器 Improved drawer Zuhuo |
| 01/31/2012 | US8105051 Vacuum pump |
| 01/18/2012 | CN202113518U Tail gas fire retardant treatment device of normal-pressure chemical equipment |