| Patents for F16K 17 - Safety valves; Equalising valves (21,027) |
|---|
| 11/17/1981 | US4300591 Anti-cavitation and overload relief valve for a hydraulic system |
| 11/11/1981 | EP0039643A1 Fluid safety valve |
| 11/11/1981 | EP0039559A1 Pilot-controlled pressure relief valve assembly |
| 11/10/1981 | US4299247 Fuel tank vent |
| 11/03/1981 | US4298315 Positive displacement pump systems |
| 10/29/1981 | WO1981003053A1 A slide valve for direct acting shutting-off of a pressure medium in case of a hose rupture |
| 10/27/1981 | US4296721 Control system having an improved condition responsive valve construction |
| 10/21/1981 | EP0038219A1 Flow control valve |
| 10/20/1981 | US4296307 Manufacturing method of the valve disk of spring loaded safety valves |
| 10/20/1981 | US4295484 Frangible connector for self-closing breakaway valve assemblies or similar structures |
| 10/15/1981 | WO1981002869A1 Valve and utilisation thereof |
| 10/14/1981 | EP0037514A1 Pressure control device with a fluid discharge prevention mechanism |
| 10/13/1981 | US4294281 Relief valve |
| 10/13/1981 | US4294276 Water sensitive probe valve for use with a gas leak detector |
| 10/13/1981 | CA1110520A1 Valve for fire extinguishing system of gas distribution type |
| 10/07/1981 | EP0037334A1 Shutoff valve device with pressure relief |
| 10/06/1981 | US4292996 Stop valve |
| 10/06/1981 | US4292990 High pressure unloader valve |
| 10/06/1981 | CA1110138A1 Safety pressure relief device |
| 09/29/1981 | US4291721 Apparatus for pressure detection and control of a safety valve |
| 09/22/1981 | US4290440 Quick disconnect coupling with a heat-sensitive cutoff feature |
| 09/22/1981 | CA1109357A1 Automatic shut-off valve and method of operation thereof |
| 09/15/1981 | US4289160 Pressure control valve |
| 09/15/1981 | US4289157 Valve with heat-responsive bearing assembly providing back seat arrangement |
| 09/15/1981 | US4289038 Fail-safe attachment for an actuator |
| 09/08/1981 | US4288005 Pressurized gas bottle discharge device |
| 09/08/1981 | US4287910 Tank pressure and vacuum relief mechanism |
| 09/08/1981 | US4287904 Valve assembly having a predetermined shear line |
| 09/08/1981 | CA1108507A1 Relief valve |
| 09/02/1981 | EP0034932A1 Pilot valve for a main safety valve |
| 09/01/1981 | US4286621 Dual acting check valve dampener |
| 08/19/1981 | EP0033867A1 Rupture disc alarm system |
| 08/18/1981 | US4284104 Safety valve for packages |
| 08/18/1981 | US4284102 Combination stop and pressure reducing valve |
| 08/18/1981 | US4284101 Pressure-relief valve devices |
| 08/18/1981 | US4284039 Pressure regulator for injection systems for internal combustion engines |
| 08/11/1981 | US4282797 Protective fluid system |
| 08/05/1981 | EP0033062A1 Quick opening valve |
| 08/04/1981 | US4281880 Back-to-back proportioning valve |
| 08/04/1981 | US4281718 Method of releasing a sprinkler, and a sprinkler head adapted to the method |
| 08/04/1981 | US4281676 Pressure modulating selector valve |
| 07/29/1981 | EP0032814A1 Pressure relief valves |
| 07/28/1981 | CA1105800A1 Overload relief valve |
| 07/22/1981 | EP0032346A1 Safety valve having a hydraulic brake |
| 07/21/1981 | US4279272 Flow line monitor pilot valve assembly |
| 07/21/1981 | US4279271 Pressure regulator and flow control valve with pre-exhaust |
| 07/14/1981 | US4278181 Safety pressure relief device |
| 07/14/1981 | US4278102 Disaster activated shut-off valve |
| 07/08/1981 | EP0031737A1 Thermal fuse for a wheel with a tyre |
| 07/07/1981 | US4276901 High flow pressure relief valve |
| 07/07/1981 | CA1104547A1 Method for controlling the relative humidity in a soil environment and apparatus for accomplishing same |
| 06/30/1981 | US4275754 Automatic valve actuator |
| 06/30/1981 | US4275753 Fuel line cut-off switch |
| 06/24/1981 | EP0030820A1 Safety pressure relief device |
| 06/23/1981 | US4274435 Excess pressure valve particularly for a fluid pressure operated telescopic supporting element employed in underground mining |
| 06/23/1981 | US4274434 Automatic low-friction check valve |
| 06/23/1981 | US4274431 Fuel vent with gravity valve |
| 06/23/1981 | CA1103600A1 Centrifugal clutch with an overspeed relief valve and clutch modulation |
| 06/23/1981 | CA1103550A1 Pressure modulating selector valve |
| 06/16/1981 | US4273251 Safety device |
| 06/16/1981 | US4273153 Vibration resistant pressure actuated vacuum breaker |
| 06/16/1981 | US4273151 In-line relief valve |
| 06/16/1981 | US4273150 Leverless pressure transducer |
| 06/09/1981 | US4271859 Temperature sensor |
| 06/09/1981 | US4271858 Butterfly valve having temperature responsive sealing means |
| 06/09/1981 | US4271857 Fire safe valve |
| 06/09/1981 | CA1102776A1 Fire safe disc valve |
| 06/09/1981 | CA1102765A1 Snap action thermally responsive fluid control valve |
| 06/02/1981 | US4270849 Rotary valve actuator construction |
| 06/02/1981 | US4270567 Control valve for use in hydraulic apparatus |
| 06/02/1981 | US4270566 Self-restricting shutoff valve |
| 06/02/1981 | US4270560 Photo-electric burst disc indicator |
| 05/26/1981 | US4269350 Thermostatic fluid valve with power element extension and method of constructing same |
| 05/26/1981 | US4269225 Safety valve assembly |
| 05/26/1981 | US4269223 Resettable pneumatic overrun control valve |
| 05/26/1981 | US4269220 Tank valve mounting arrangement |
| 05/26/1981 | US4269215 Vapor flow control valve |
| 05/26/1981 | US4269214 Safety pressure relief device |
| 05/26/1981 | US4269213 Safety valve |
| 05/20/1981 | EP0028851A1 Method of drawing off inflammable or dangerous fluids with the aid of a safety valve |
| 05/20/1981 | EP0028661A1 Apparatus for periodically testing the operation of safety valves, and safety valve |
| 05/19/1981 | US4267858 Pressure relief valve |
| 05/19/1981 | US4267854 Flood valve |
| 05/19/1981 | US4267853 Rubber, graphite |
| 05/19/1981 | CA1101397A1 Fluid shut-off device |
| 05/19/1981 | CA1101307A1 Pressure reducer and flow control valve |
| 05/12/1981 | US4266568 Vacuum breaker-pressure release device |
| 05/12/1981 | US4266467 Differential pressure limiting valve |
| 05/06/1981 | EP0028152A1 Vacuum modulator valve and subassembly therefor |
| 05/05/1981 | US4265271 Relief valve |
| 05/05/1981 | US4265269 Device for automatically cutting off damaged branches of pneumatic and hydraulic systems |
| 05/05/1981 | US4265267 Flow control device for use with positive displacement pump |
| 05/05/1981 | CA1100467A1 Heat responsive back seat arrangement for valve operator |
| 04/28/1981 | US4263938 Relay valve for fluid actuators |
| 04/28/1981 | US4263936 Erosion resistant check valve assembly |
| 04/28/1981 | US4263935 Pressure-regulating valve with automatic release |
| 04/28/1981 | US4263933 Pressurized tank safety valve |
| 04/28/1981 | US4263929 Electropneumatic pressure relief indicator |
| 04/28/1981 | US4263928 Fuel security device |
| 04/28/1981 | CA1100120A1 Steam stop valve assembly with internal bypass valves |