| Patents for F16K 15 - Check valves (18,131) |
|---|
| 01/26/1989 | DE3723672A1 Non-return valve with an integrated pressure-regulating piston |
| 01/25/1989 | EP0300994A1 Compressor valve |
| 01/25/1989 | EP0300989A1 Plate valve for a compressor |
| 01/25/1989 | CN2031477U Magnetically controlled low-resistance energy-saving non-return valve |
| 01/24/1989 | US4799507 Adjustable compressor valve which can accommodate changing operating conditions in the compressor to which it is attached |
| 01/19/1989 | DE3722343A1 Check valve |
| 01/18/1989 | CN2031053U Check-valve for micro-damping spacing hammer |
| 01/17/1989 | CA1248840A1 Valve having hard and soft seats |
| 01/12/1989 | WO1989000262A1 Deformable valve |
| 01/11/1989 | EP0298281A1 Return flow preventer |
| 01/11/1989 | CN2030681U Frostbite-preventing and sealing universal valve |
| 01/11/1989 | CN2030680U Valve of a tyre |
| 01/10/1989 | US4796663 Fabricated check valve construction |
| 01/10/1989 | CA1248425A1 Intercranial pressure regulator valve |
| 01/05/1989 | DE3720822A1 Single-blade check valve |
| 01/05/1989 | DE3720821A1 Check valve |
| 01/03/1989 | US4795340 Single-leaf valve for gas-fired boilers |
| 01/03/1989 | CA1247984A1 Valve for use with hydraulic ram assemblies |
| 12/28/1988 | EP0296163A1 Improvements in valves |
| 12/27/1988 | US4793590 Piloted check valve |
| 12/21/1988 | CN88210454U Platen valve |
| 12/21/1988 | CN87214601U Piston-type valve of tyre for small-size pneumatic-tyre |
| 12/15/1988 | WO1988009867A1 Fuel injection system with umbrella check valve |
| 12/13/1988 | CA1246423A1 Vacuum breaker |
| 12/01/1988 | WO1988009269A1 Accessory for pneumatic bicycle tire valves |
| 11/24/1988 | DE3715288A1 Non-return valve or flap for hot-water heating systems |
| 11/17/1988 | EP0291375A1 No-return valve |
| 11/15/1988 | US4784654 Urinary collection system and improved female urinary appliance |
| 11/08/1988 | US4782855 For use between flanges |
| 11/02/1988 | EP0288521A1 Check valve testing system |
| 11/02/1988 | CN87210504U Parallel-connected complex type lubricating system for reciprocating internal combustion engine |
| 11/01/1988 | US4781674 Fluid flow control valve |
| 11/01/1988 | US4781214 Swing check valve disc |
| 11/01/1988 | US4781213 Ball check valve |
| 11/01/1988 | US4781212 Swing check valve with removable cage and disc |
| 11/01/1988 | CA1243920A1 Low inertia check valve |
| 10/20/1988 | DE3710863A1 Hydraulic, releasable non-return valve |
| 10/19/1988 | EP0287289A2 Valve member and valve assembly for fluid flow control |
| 10/18/1988 | US4778360 Suction and/or discharge valve port configuration for refrigerant compressor |
| 10/18/1988 | US4777979 Position detector for clapper of non-return valve |
| 10/12/1988 | EP0286573A2 No-return valve for dirty liquid or gaseous fluid |
| 10/12/1988 | CN87216408U Automatic sealing shutoff valve |
| 10/12/1988 | CN87215913U Sealing air valve with rubber ring |
| 10/11/1988 | US4776776 Small pump valve plate assembly |
| 10/11/1988 | US4776400 Oil-well flap-type safety valve |
| 10/11/1988 | US4776369 Check valve having snap-on clamping sleeve |
| 10/05/1988 | EP0284805A2 Tube disconnector |
| 10/05/1988 | EP0284713A2 Valve assembly |
| 10/05/1988 | CN87213577U In-out combined water valve of reciprocating pump |
| 10/04/1988 | US4774981 Check valve |
| 09/28/1988 | EP0284353A2 Unidirectional fluid valve |
| 09/28/1988 | EP0283864A1 Sewage anti-backflow valve |
| 09/22/1988 | WO1988006901A1 Multiple fluid path junction device |
| 09/22/1988 | DE3708077A1 Valve which can be opened by inserting a tubular body |
| 09/21/1988 | EP0283413A1 Valve with at least one flap swivelling about elastic pivots |
| 09/21/1988 | EP0282626A2 Valve for a pneumatic chamber of a hydropneumatic shock absorber |
| 09/20/1988 | US4771925 Flap valve for a dispenser |
| 09/20/1988 | CA1242226A1 Flow check mechanism |
| 09/20/1988 | CA1242123A1 Pressure regulation system |
| 09/15/1988 | DE3706737A1 Back-syphonage preventer |
| 09/13/1988 | US4770740 Method of manufacturing valve element for use in an ink-jet printer head |
| 09/07/1988 | CN87211361U Check valve with floating ball |
| 09/07/1988 | CN87210683U Self enclosed water regulating valve |
| 09/06/1988 | US4769002 Intercranial pressure regulator valve |
| 09/06/1988 | US4768574 Valve for pneumatic tires |
| 09/06/1988 | US4768549 Retention valve particularly for liquid-bearing conduits |
| 08/30/1988 | US4766930 Check valve with self-guided shutter in the valve body |
| 08/30/1988 | US4766929 Check valve |
| 08/30/1988 | US4766927 Abrasive fluid control valve with plastic seat |
| 08/25/1988 | DE3706712C1 Back-syphonage preventer |
| 08/24/1988 | EP0279028A2 Liquid delivery device |
| 08/24/1988 | CN88200066U Clamp type spring check valve |
| 08/23/1988 | US4765372 Check valve |
| 08/23/1988 | US4765364 Pressure activated valve for sanitary systems |
| 08/16/1988 | US4763689 Vacuum check valve |
| 08/11/1988 | DE3703114A1 Ball-type nonreturn valve |
| 08/10/1988 | CN87214305U Miniature one-way valve |
| 08/10/1988 | CN87210336U Frost-resistant valve for pressure meter |
| 08/09/1988 | US4762149 Double seal press assembled check valve |
| 08/09/1988 | US4762140 Snap-off plug valve |
| 08/03/1988 | EP0276556A1 Center flow check valve |
| 08/02/1988 | US4760866 Combination stop and pressure reducing valve and stop cock version |
| 07/27/1988 | EP0276097A2 Liquid container |
| 07/27/1988 | CN87210248U Spherical shape back stop valve |
| 07/27/1988 | CN87100277A Oil-discharging line air-liquid control valve for automobile fuelling station and its usage method |
| 07/27/1988 | CN86209584U Explosion protective safety inflating valve for motor vehicle tyre |
| 07/26/1988 | US4759696 Scroll compressor with biased-open exhaust valve |
| 07/26/1988 | US4759385 Low inertia check valve |
| 07/20/1988 | EP0275032A1 Method and device for producing an undercut bore hole in a mounting base |
| 07/20/1988 | EP0274963A1 Quickly opening membrane valve, especially for protective garments |
| 07/20/1988 | CN87213018U 泵阀 Valve |
| 07/20/1988 | CN86104151A Magnetic valve and its assemblies |
| 07/19/1988 | US4758224 Suction control valve for left ventricle venting |
| 07/19/1988 | US4758141 Vane pump with flexible tongue valve |
| 07/19/1988 | US4757974 Check valve |
| 07/13/1988 | CN87211664U A new type externally regulated bimetal steam trap |
| 07/13/1988 | CN87208319U Rotate-to-open type magnetic non-return valve and foot valve |
| 07/12/1988 | US4756982 Dual seal battery vent valve |
| 07/12/1988 | US4756334 Check-valve assembly, in particular for a pressurized water reactor |
| 07/12/1988 | US4756333 Vacuum check valve |