| Patents for F16K 15 - Check valves (18,131) |
|---|
| 04/23/1992 | DE4033420A1 Pressure valve for rotary piston compressor - uses valve element sleeve with axial and circumferential grooves |
| 04/22/1992 | CN2102418U Durable air valve |
| 04/21/1992 | US5105997 Filling nozzle having a tube holding portion for holding a rubber tube |
| 04/21/1992 | US5105848 Automatic relief valve |
| 04/21/1992 | CA1299061C Fabricated check valve construction |
| 04/21/1992 | CA1299060C Swing check valve with removable cage and disc |
| 04/15/1992 | EP0479941A1 Balanced-torque butterfly valve. |
| 04/15/1992 | EP0479940A1 Butterfly valve apparatus and method. |
| 04/15/1992 | EP0479921A1 Flight craft with fluid systems which incorporate butterfly valves, and butterfly valve methods and apparatus. |
| 04/15/1992 | EP0479917A1 Butterfly valve method and apparatus |
| 04/15/1992 | EP0479865A1 Butterfly valve apparatus and method. |
| 04/15/1992 | EP0479855A1 Butterfly valve method and apparatus employing variably positionable pivot shaft |
| 04/15/1992 | EP0479853A1 Butterfly valves with actuators carried on valve plate. |
| 04/15/1992 | EP0479828A1 Butterfly valve method and apparatus. |
| 04/15/1992 | EP0479824A1 Butterfly-type check valve |
| 04/14/1992 | US5103854 Low pressure check valve for artificial respiration devices |
| 04/09/1992 | DE4031456A1 Non-return valve two valve gatea - has slotted expander ring with flange fitting into groove in valve housing wall |
| 04/08/1992 | EP0479770A2 Wound drainage system with anti-spill device |
| 04/08/1992 | EP0479738A2 Tap for under-wash basin with nonreturn valve |
| 04/08/1992 | CN2101149U Needle for inflating |
| 04/08/1992 | CN2101148U Valve for water pumping |
| 04/07/1992 | US5101855 Cyclone having circular trickle valve assembly |
| 04/07/1992 | CA1298494C Method and apparatus for making an undercut drilled hole in a fixed base |
| 04/02/1992 | DE4030717A1 Throttle check valve - has movable valve element with aperture formed from deformable foil and moving, during throttling, into play free contact |
| 04/02/1992 | DE4023845C1 Shut-off valve for semiconductor producinvacuum equipment - has valve disc pressed against valve seal by actuator and seal between disc and seat |
| 04/01/1992 | EP0478378A2 Check valve for compressor |
| 04/01/1992 | CN2100536U Safety valve of inner tube valve |
| 04/01/1992 | CN2100535U Explosion-proof valve rubber tube of bicycles |
| 04/01/1992 | CN2100534U Check valve |
| 03/31/1992 | US5100606 Method of injection molding a plastic plate |
| 03/31/1992 | US5100299 Process for pumping a two phase mixture |
| 03/31/1992 | US5099878 Tube mounted low pressure check valve |
| 03/31/1992 | US5099877 Swing element valve |
| 03/27/1992 | CA2050009A1 Maximum flow single plug retention valve |
| 03/26/1992 | DE4029909A1 Non return valve for air driers of air brakes - has spring-tensioned closing body with cylindrical attachment |
| 03/25/1992 | EP0476511A1 Reed valve assembly |
| 03/25/1992 | EP0248079B1 Faucet valve with anti-siphon back flow preventer |
| 03/24/1992 | CA1297760C Non-return valve |
| 03/19/1992 | WO1992004569A1 A valve equipped with a position detector and a micropump incorporating said valve |
| 03/18/1992 | EP0475833A1 Unidirectional flow limiter |
| 03/17/1992 | CA1297378C Position detector for clapper of non-return valve |
| 03/11/1992 | CN2098598U Automatic safety valve inside |
| 03/10/1992 | US5094753 Disposable extraction cartridge |
| 03/05/1992 | WO1992003678A1 Self-sealing inflation valve for inflatable bodies made of foil |
| 03/04/1992 | EP0263863B1 Valve operating with high reliability |
| 03/04/1992 | CN2097932U Oil control microresistivity slow stop check valve |
| 03/04/1992 | CN1015736B Position detector for clapper of non-return valve |
| 03/03/1992 | US5092855 Enclosing sleeve for one-way valve |
| 03/03/1992 | US5092361 Inline type check valve |
| 03/03/1992 | US5092288 Spray rail reed block |
| 02/26/1992 | EP0472509A1 A method and a device for automatic circulation in a waste water pump station |
| 02/26/1992 | EP0472088A1 Valve assembly for medical fluid circuits |
| 02/26/1992 | CN2097332U Water pumping valve |
| 02/25/1992 | US5090880 Scroll compressor with discharge valves |
| 02/25/1992 | US5090446 Adjustable check valve |
| 02/19/1992 | EP0471643A1 Valve head |
| 02/19/1992 | EP0471294A1 Apparatus for dispensing agricultural chemicals |
| 02/18/1992 | US5088905 Check valve for scroll compressor |
| 02/18/1992 | US5088521 Mud pump valve |
| 02/18/1992 | CA1295918C Swing check valve with hinge pin insert |
| 02/15/1992 | WO1992003673A1 Valve head |
| 02/15/1992 | CA2067762A1 Valve head |
| 02/12/1992 | CN2095987U Inflator for inner tube rubber valve of wheel |
| 02/12/1992 | CN2095986U Air aiding valve |
| 02/12/1992 | CN2095985U Tyre inflating valve parts |
| 02/12/1992 | CN2095984U Convenient air needle for bicycle inflator and rubber ball inflator |
| 02/12/1992 | CN2095983U Spring non-return valve |
| 02/11/1992 | US5086613 Check-relief valve for a hydraulic circuit |
| 02/04/1992 | CA1295209C Implantable shunt system and method of assembly |
| 02/04/1992 | CA1295183C Ink jet printhead having a preloaded check valve |
| 01/29/1992 | CN2094659U Motor cycle inflating joint |
| 01/28/1992 | US5083581 Nozzle for inflatable objects |
| 01/22/1992 | CN2093943U Tyre valve stem |
| 01/22/1992 | CN2093942U Inclined-seal check valve |
| 01/22/1992 | CN2093941U Water-pumping valve |
| 01/21/1992 | US5082020 Valve body for oilfield applications |
| 01/21/1992 | CA1294514C Ball valve with built-in check valve |
| 01/15/1992 | EP0466291A2 Apparatus and method for supercritical fluid extraction |
| 01/15/1992 | EP0466081A1 Safety valve for fuel injection apparatus |
| 01/15/1992 | CN2093289U Leakproof and theft-proof valve of tyre for jinricksha |
| 01/14/1992 | US5080122 Non-return valve |
| 01/11/1992 | WO1992001160A1 Valve and micropump incorporating said valve |
| 01/11/1992 | CA2065735A1 Valve and micropump incorporating said valve |
| 01/08/1992 | EP0464389A1 Check valve |
| 01/08/1992 | CN1057706A Valve for hermetic refrigeration compressor |
| 01/07/1992 | WO1992001184A1 Safety cut-out |
| 01/02/1992 | EP0463209A1 Switch valve for pressure fluids |
| 01/01/1992 | CN2092006U Charge valve for small gas cylinder of side stove |
| 01/01/1992 | CN2092005U Air valve of bicycle tyre |
| 01/01/1992 | CN2092004U Check device of oil fume extractor |
| 12/17/1991 | US5072753 Toggle linkage check valve |
| 12/11/1991 | EP0460728A1 Intake port pressure control apparatus for engine induction system |
| 12/11/1991 | EP0460299A1 Pressure control valve for oil-injection moulding nozzle for internal combustion engine |
| 12/11/1991 | CN2090499U Energy-saving refrigerant check valve |
| 12/04/1991 | EP0459798A1 Tensioner for a toothed belt |
| 12/01/1991 | CA2018117A1 Check valve assembly for hydromassaging apparatus and improved hydromassaging apparatus using such check valve assembly |
| 11/27/1991 | CN2089557U Ono-way valve type drainage device |
| 11/26/1991 | US5067506 Flight craft with fluid systems which incorporate butterfly valves, and butterfly valve methods and apparatus |
| 11/26/1991 | US5067449 Fitted crankcase breather valve assembly |
| 11/20/1991 | CN2089107U Spring valve inside for tyre of cart |