| Patents for A62C 4 - Flame traps allowing passage of gas but not of flame or explosion wave (753) |
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| 05/26/2010 | CN201482026U Hydrogen flashback arrestor |
| 05/19/2010 | CN201475466U Fireproof valve in oil smoke pipeline of forming machine |
| 05/19/2010 | CN201475441U Deflector type fire-resisting damper |
| 05/19/2010 | CN101708358A Check-valve weight-bias fire-retarding device for check valves |
| 05/12/2010 | CN201462104U Oil smoke exhaust fire resistance check valve |
| 05/05/2010 | EP2181888A1 Suction apparatus for suctioning combustible material |
| 03/31/2010 | CN201433784Y Bead type flame arrestor for mining explosionproof diesel engine |
| 03/25/2010 | WO2010031336A1 Annular valve |
| 03/03/2010 | CN201415015Y Back fire extinguisher |
| 02/16/2010 | US7661718 Means for fire protection of pipe joints and valves in pipelines |
| 02/10/2010 | CN201399168Y Novel gas pipeline flame arrester |
| 12/23/2009 | CN201368243Y High-speed breather valve for tank ship |
| 12/16/2009 | CN201361386Y Fire-resistant mechanism for oil-fume separating device |
| 12/16/2009 | CN201361385Y Adjustable non-return fireproof valve |
| 12/10/2009 | WO2009147636A1 A breathing system and method of using the system |
| 12/10/2009 | US20090301740 Apparatus and method for inhibiting propagation of a flame front |
| 12/09/2009 | EP2130567A1 Arrangement of a flame-arrester system in the engine of an automobile |
| 12/09/2009 | CN201356932Y Flue fire-extinguishing apparatus |
| 11/18/2009 | CN101579559A Fire damping device |
| 11/11/2009 | CN201342199Y Honeycomb corrugated plate fire arrestor |
| 10/14/2009 | CN201327163Y Air-return fireproof silence chamber |
| 10/06/2009 | CA2350639C Flame arrester |
| 09/30/2009 | CN201316491Y Safety emptying flame arrester |
| 09/16/2009 | CN101530656A Automatic type detonation-hindered flame arrester |
| 09/02/2009 | EP1631358B1 Permanently fireproof flame guard |
| 09/01/2009 | CA2372505C Flame barrier arrangement |
| 07/22/2009 | CN201275382Y Flow-guiding temperature-sensing fire-proof valve |
| 07/15/2009 | CN201271442Y Enclosed type fireproofing and smoke-discharging valve |
| 05/20/2009 | CN101435584A Explosion-proof apparatus |
| 04/29/2009 | EP1453574B1 Fire-barrier outlet |
| 04/22/2009 | CN201223657Y Combined pipeline flame arrester |
| 03/12/2009 | WO2009030598A1 Flame filter |
| 03/04/2009 | CN201200743Y Fire-separating device for wind pipe of shipping |
| 02/19/2009 | DE10201287C5 Bodenablauf Floor drain |
| 02/12/2009 | WO2008131702A3 Bidirectional anti-explosive arrester, especially for pipe systems |
| 12/03/2008 | CN201157636Y External fire resisting damper mounting structure for voltage transformation exhaust system |
| 11/20/2008 | DE102007023381A1 Device for preventing piercing of flame or explosion front from chamber to another chamber in area of movable elements connecting both chambers, has brush seal for achieving pressure and heat-resistant |
| 11/06/2008 | WO2008131702A2 Bidirectional anti-explosive arrester, especially for pipe systems |
| 10/23/2008 | US20080258458 Means for Fire Protection of Pipe Joints and Valves in Pipelines |
| 10/08/2008 | CN201127803Y Cigarette prevention and fire prevention regulation valve special for full-automatic intelligent type subway |
| 10/02/2008 | DE102007014908A1 Vorrichtung gegen die Ausbreitung von Explosionen, insbesondere Staubexplosionen Device against the propagation of explosions, especially dust explosions |
| 09/03/2008 | CN101254332A Explosion prevention back-fire relief type separator for water and vapor |
| 08/20/2008 | CN201101837Y Back-fire relief valve special for chlorine |
| 08/13/2008 | CN201099499Y Petroleum storage tank explosion-proof fire retardant respiring valve |
| 08/13/2008 | CN100410110C High temperature gas rapid cooling device and cooling method |
| 07/23/2008 | CN101227955A Apparatus and method for inhibiting propagation of a flame front |
| 07/10/2008 | US20080164038 Flame arrester |
| 06/24/2008 | US7390190 Flame arrestor with reflection suppressor |
| 06/11/2008 | CN101198380A Detonation flame arrester |
| 05/14/2008 | CN101176813A Bidirectional flame arrester |
| 05/08/2008 | DE102006025260B4 Gehäuse für brandgeschützte Wanddurchführungen in Trennwänden mit gleitendem Deckenanschluß Housing for fireproof wall penetrations in walls with sliding ceiling connection |
| 03/19/2008 | CN201036669Y Building exhausting duct fire-proof valve |
| 03/05/2008 | CN201030158Y Pressure swing type smoke-discharging valve nozzle for draught flue |
| 02/13/2008 | CN201020176Y Fireproof smoke discharging valve actuating mechanism |
| 01/23/2008 | EP1879668A1 Explosion protection valve |
| 01/09/2008 | EP1874411A1 Detonation flame arrester |
| 01/09/2008 | CN201001924Y Device for inhibiting combustible substance explosion spreading |
| 01/02/2008 | CN101095973A Fire-preventing check valve |
| 12/20/2007 | DE102006026779A1 Flammensperranordnung und Verfahren zum Einbringen von Bohrungen in eine Flammensperranordnung Flame arrester arrangement and method for drilling holes in a flame arrester arrangement |
| 12/12/2007 | EP1864695A1 Flame trap assembly and method for drilling bores to a flame trap assembly |
| 12/12/2007 | EP1864694A1 Flame arrester and method for its production |
| 12/12/2007 | EP1863577A1 Device for locking out a pressurized storage container and method for the same |
| 12/07/2007 | CA2590628A1 Flame arrester arrangement and method of incorporating bores in a flame arrester arrangement |
| 12/06/2007 | DE102006025260A1 Fire-protected wall bushing`s housing for use in partition wall, has rectangular external cross section, which is surrounded at three sides by connection collar that is designed with specific thickness |
| 12/06/2007 | CA2588403A1 Flame arrester insert and process for its production |
| 10/31/2007 | CN200966855Y Executing device of explosion prevention and exhaustsmoke |
| 10/24/2007 | CN200963465Y Fire-proof valve specially used for kitchen toilet discharge duct |
| 10/24/2007 | CN101058011A Fire and smoke blocking device for ventilation duct in house kitchen and toilet |
| 09/12/2007 | CN101032656A Operating mechanism of valve for removing flue gas and fire proofing |
| 09/06/2007 | DE102005046149B4 Vorrichtung zum Abführen von Oberflächenwasser und zum Brandschutz Apparatus for removing surface water and fire protection |
| 09/05/2007 | CN200942250Y Fire valve for housing exhaust port |
| 08/29/2007 | CN200939301Y Smoke, fire blocker for air exhausting duct of kitchen and bathroom |
| 08/22/2007 | CN2936307Y Fire-retardant device for burning waste gas |
| 08/15/2007 | CN101015729A Method and appts. for suppressing combustible substance explosion and diffusion |
| 08/09/2007 | US20070183909 Vacuum pump |
| 08/09/2007 | DE10260808B4 Quenching - Vorrichtung Quenching - device |
| 07/10/2007 | US7241137 Flame arrestor |
| 06/20/2007 | CN1321708C Vacuum pipe disaster prevention device |
| 06/06/2007 | EP1372790B1 Fire and explosion suppression |
| 05/24/2007 | DE102006026510B3 Production of flame barrier insert by coiling flat metal strip and corrugated metal strip in spiral comprises providing coil with coating to fix contact zones between strips |
| 05/16/2007 | CN2901133Y New circular multiple blade ventilation valve |
| 05/16/2007 | CN1961993A Fire-proof valve structure used specifically in discharge flue of kitchen and rest room |
| 05/10/2007 | DE202006019831U1 Flammensperreinsatz Flame arrester insert |
| 04/24/2007 | CA2571418A1 Flame arrester and radiator combination |
| 04/12/2007 | DE102005046149A1 A method for preventing the spread of fire due to air through drain outlets has a pot within the drain having an expanding fire protection material which blocks the drain outlet |
| 04/10/2007 | CA2139360C Flame arrestor apparatus |
| 04/04/2007 | CN2885316Y Fireproof check valve of draught flue |
| 04/04/2007 | CN2885315Y Diameter-variable fire-retarding device |
| 03/21/2007 | CN2881255Y High speed ventilation valve for ship |
| 03/15/2007 | WO2007028398A1 Anti-explosive substance preventing explosion of organic compounds inside tanks or pipeworks |
| 03/14/2007 | CN2877767Y Fire arrestor before and after oxygen duct valve |
| 02/28/2007 | EP1755744A1 Vacuum pump |
| 02/28/2007 | CN2874167Y Fire-proof non-return valve for smoke discharge gas |
| 02/06/2007 | US7172731 Preventing equipment damage; glass bursts releasing fumes into environment when excess volume is too large to vent through safety valve |
| 02/01/2007 | WO2007012894A1 Apparatus and method for inhibiting propagation of a flame front |
| 12/13/2006 | CN2845838Y Exhaust pipe with fire-proof valve |
| 11/22/2006 | CN1865760A Biomass marsh gas preprocessing system |
| 11/16/2006 | WO2006120091A1 Explosion protection valve |
| 11/02/2006 | EP1528948B1 Flame arrester |
| 10/31/2006 | CA2160891C Method and installation for removing smoke from a monitored space |