| Patents for F16K 15 - Check valves (18,131) |
|---|
| 12/14/1994 | CN1027006C Valve for a hermetic refrigeration compressor |
| 12/13/1994 | US5372487 Inlet check valve for pump mechanism |
| 12/13/1994 | US5372158 Valve with backflow preventer |
| 12/07/1994 | EP0627584A1 Valve |
| 12/07/1994 | CN2184829Y Split type lifting air bag valve |
| 12/07/1994 | CN2184828Y Anti-overflow device for drainage pipe block |
| 12/07/1994 | CN1026914C Non-stopping check valve |
| 12/06/1994 | US5370356 One-way fluid flow non-return valve |
| 12/06/1994 | US5370156 Reduced noise valve stop |
| 11/30/1994 | EP0626180A1 Mouthpiece for inhalation therapy apparatus |
| 11/30/1994 | CN2184129Y Fast closing retaining valve |
| 11/30/1994 | CN2184128Y Improved retaining valve of smoke exhausting system |
| 11/30/1994 | CN2184127Y Flow increase valve |
| 11/30/1994 | CN1026817C Auto-balance liquid check valve |
| 11/29/1994 | US5368069 Conduit joint assembly |
| 11/29/1994 | US5368013 Parallel piped fluid heaters with staged flow controlled by magnetic priority valves |
| 11/29/1994 | US5367726 Pneumatic support system |
| 11/29/1994 | CA2124519A1 Mouthpiece for inhalation therapy device |
| 11/29/1994 | CA1333274C Ring valve including a complex valve plate with individual annular plates |
| 11/23/1994 | EP0625668A2 Gas line override valve |
| 11/23/1994 | EP0625645A1 Closure valve for pistons of self-regulating hydraulic devices |
| 11/23/1994 | CN2183482Y Air valve for bicycle |
| 11/21/1994 | CA2096669A1 Locking valve bbs for fluids and valvular security systems |
| 11/17/1994 | EP0624744A1 Vibration dampered duckbill valve |
| 11/17/1994 | EP0624728A1 Spring check valve cartridge |
| 11/16/1994 | CN2182915Y Needle type single direction inflating valve |
| 11/15/1994 | US5364244 Pump arrangement including flag type inlet valves with spherical seating |
| 11/15/1994 | US5363878 Relief valve |
| 11/15/1994 | US5363877 Suction regulating valve |
| 11/14/1994 | CA2122672A1 Spring check valve cartridge |
| 11/10/1994 | DE4314809A1 Intake pipe for an internal combustion engine |
| 11/09/1994 | CN1026536C Pneumatic operation system for breaker |
| 11/02/1994 | EP0621836A1 Immersion-proof abs/drive slip control pumping assembly with check valve. |
| 11/02/1994 | CN2181606Y Adjustable slow-closing check valve |
| 11/01/1994 | US5360032 Control valve assembly |
| 11/01/1994 | CA2074459C Top-entry check valve with threaded fasteners |
| 11/01/1994 | CA2074458C Top-entry check valve with screw-in seat |
| 11/01/1994 | CA2074456C Top-entry check valve with pin fasteners |
| 11/01/1994 | CA2074455C Top-entry check valve having spring retainer |
| 10/26/1994 | EP0621052A2 Variable resistance for the expiratory breathing circuit |
| 10/26/1994 | CN2180850Y Membrane type fluid return-proof device |
| 10/25/1994 | US5358001 Air valve for use in an inflatable bladder |
| 10/18/1994 | US5355910 For use in a flap-type pressure relief valve |
| 10/18/1994 | CA2066980C Top-entry check valve with cartridge secured by threaded projections |
| 10/12/1994 | CN2179505Y Piston man-power vehicle valve inside |
| 10/12/1994 | CN2179504Y Pipeline check-valve |
| 10/11/1994 | US5353834 Check valve |
| 10/11/1994 | US5353501 Method of manufacturing variable orifice devices |
| 10/05/1994 | EP0618108A1 Optical device with a one-way valve for a vehicle |
| 10/05/1994 | CN2178823Y Micro-slow closed check valve |
| 10/04/1994 | US5351711 Automatic sealing valve mounted on an inflatable body |
| 09/29/1994 | DE4343619A1 Shut-off device for air-carrying conduits, especially flues |
| 09/28/1994 | CN2178315Y Valve device for injection air |
| 09/28/1994 | CN2178314Y Interchangeable high pressure check-valve |
| 09/27/1994 | US5349984 Check valve |
| 09/21/1994 | CN2177850Y 流量调整止逆阀 Flow check valve adjustment |
| 09/20/1994 | US5348177 Fuel backward flow-preventing device for use in an automotive vehicle |
| 09/20/1994 | US5348046 Spring check valve cartridge |
| 09/20/1994 | US5347812 Hydraulic motor assembly |
| 09/20/1994 | CA2066981C Top-entry check valve with cartridge secured by projections |
| 09/20/1994 | CA1332042C Tire inflation valve having overpressure and flow control |
| 09/15/1994 | WO1994020778A1 One-way valve for automatic or manual actuation in holders for chain-saw guidebars |
| 09/15/1994 | WO1994020754A1 Fluid pressure intensifying apparatus |
| 09/15/1994 | WO1994020190A1 Apparatus and method for supercritical fluid extraction |
| 09/15/1994 | WO1994020189A1 Apparatus and method for supercritical fluid extraction |
| 09/15/1994 | WO1994020188A1 Apparatus and method for supercritical fluid extraction |
| 09/14/1994 | CN2177148Y Energy saving check valve |
| 09/14/1994 | CN2177147Y Adjustable flow vertical lift check valve |
| 09/13/1994 | US5346375 Delivery valve for a scroll compressor |
| 09/13/1994 | US5345970 Virtual valve stop |
| 09/13/1994 | US5345969 Seal in high pressure pneumatic booster valve |
| 09/13/1994 | US5345965 Valve body design for use with pumps handling abrasive fluids |
| 09/13/1994 | CA2109385C Check valve pull assembly |
| 09/07/1994 | CN2176473Y Non-leakage and air-permeable plug valve |
| 09/06/1994 | US5343889 Nozzle for inflatable objects |
| 09/01/1994 | DE4304649A1 Automatic shut-off device for a gas-carrying pipe |
| 08/31/1994 | EP0612537A2 Non-return valve, in particular for medical applications of fluid engineering |
| 08/31/1994 | EP0574526B1 Butterfly-type check valve |
| 08/30/1994 | US5341840 Bonnetless swing check valve |
| 08/24/1994 | EP0611907A1 Fluid Check Valve with Replaceable Valve Seat and Flapper Assembly |
| 08/24/1994 | CN2175131Y Device for automatic inflation for motor bicycle |
| 08/24/1994 | CN1091186A One-way disc valve |
| 08/17/1994 | CN2174609Y One-way valve for water meter |
| 08/17/1994 | CN2174608Y One-way valve for gas meter |
| 08/17/1994 | CN2174607Y One-way valve members |
| 08/10/1994 | EP0609660A1 Quick-action flap |
| 08/10/1994 | EP0609613A1 Butterfly valve |
| 08/10/1994 | EP0609608A1 Water heater heat trap |
| 08/10/1994 | CN2173886Y Elastic reset check valve |
| 08/04/1994 | CA2102717A1 Disk valve with improved disk mounting |
| 08/03/1994 | EP0609145A1 2/2 way valve combined with a relief valve |
| 08/02/1994 | CA2068920C Maximum operation angle single plug and puppet type retention valves |
| 07/28/1994 | DE4301004A1 Seal for armature with closure located in housing |
| 07/27/1994 | CN2172822Y Butterfly check valve |
| 07/27/1994 | CN2172734Y Structure-improved valve of tyre |
| 07/26/1994 | US5332368 Air compressor having a high pressure output |
| 07/26/1994 | US5332000 Low pressure sensitive valve |
| 07/21/1994 | WO1994016254A1 Improved multiple stage reed valves for use in internal combustion engines |
| 07/21/1994 | WO1994016253A1 One-way valve assembly |
| 07/20/1994 | CN2172386Y Self-sealing long service valve inside |