| Patents for F16K 15 - Check valves (18,131) |
|---|
| 08/18/1993 | CN2140456Y Check valve |
| 08/18/1993 | CN2140455Y Deep cooling gas check valve |
| 08/18/1993 | CN2140454Y Refractory micro-resistance slowly-closed check valve |
| 08/17/1993 | US5236009 Double check backflow preventer with improved toggle linkage check valve |
| 08/17/1993 | US5236007 Top-entry check valve having retainer ring |
| 08/12/1993 | DE4203161A1 Hydraulic non-return or overflow valve with multipart housing - has spherical dish-shaped valve plug centring seat on inside for adjoining sprig side |
| 08/11/1993 | EP0554752A1 Single seal fluid control valve |
| 08/10/1993 | US5234018 Sewer check valve and cleanout apparatus |
| 08/10/1993 | CA1321261C Check valve testing system |
| 08/03/1993 | US5232016 Vacuum storage container |
| 08/03/1993 | US5232014 Check valve |
| 08/03/1993 | US5232013 Check valve with poppet damping mechanism |
| 08/03/1993 | US5231982 Molded nosecup valve assembly |
| 07/28/1993 | CN2139197Y Concealed inflation valve |
| 07/22/1993 | WO1993014336A1 Valve, in particular for a pump priming circuit |
| 07/21/1993 | CN2138737Y Power saving air valve device |
| 07/21/1993 | CN2138736Y Check valve for circuit breaker |
| 07/16/1993 | CA2064256A1 Pressure washer with pressure bypass |
| 07/14/1993 | CN2138224Y Check valve without block hammer |
| 07/13/1993 | US5226799 Ultrahigh pressure poppet valve with low wear |
| 07/13/1993 | US5226445 Valve having convex sealing surface and concave seating surface |
| 07/13/1993 | US5226441 Backflow preventor with adjustable outflow direction |
| 07/08/1993 | WO1993012840A1 Combined alarm and backflow prevention arrangement for fire suppression sprinkler system |
| 07/07/1993 | CN2137745Y Non-return valve for carbonisation tower |
| 07/01/1993 | DE4142494A1 Check valve for medicinal use - has flexible membrane disc, which generates surface contact on sealing surface |
| 06/30/1993 | EP0549397A1 Safety valve |
| 06/30/1993 | CN2137317Y Extinguishing one-way valve |
| 06/30/1993 | CN2137316Y Check valve used for pressure gauge of cylinder |
| 06/29/1993 | US5222522 Elastic valve for controlling a fluid flow |
| 06/29/1993 | US5222519 Reverse-flow prevention device for fuel tank |
| 06/23/1993 | EP0547849A1 Motor-cycle radial tyre |
| 06/16/1993 | EP0546223A1 Fluid flow control valve |
| 06/16/1993 | CN2136376Y Leakproof air valve for tyre |
| 06/16/1993 | CN2136375Y Multifunction one-way valve |
| 06/16/1993 | CN1021249C Multi-fork valve |
| 06/15/1993 | US5218993 Serviceable check valve |
| 06/15/1993 | US5218992 Check valve retainer |
| 06/09/1993 | EP0482023B1 Molded nosecup valve assembly |
| 06/09/1993 | DE4140150A1 Throttle valve for discharge flow - has closure pivot displaced relative to flow, on one side of closure element. |
| 06/09/1993 | DE4140149A1 Flap valve controlling fluid flow - has spring support with adjustable pivot positions to avoid shear force on closure element. |
| 06/09/1993 | CN2135704Y Double-petal check valve |
| 06/09/1993 | CN2135703Y Air compressor check valve |
| 06/02/1993 | EP0544105A1 Energy efficient piston type compressor |
| 06/02/1993 | CN2135089Y Self-sealed long-lfe valve rubber tube |
| 06/02/1993 | CN2135088Y Plug-control valve for bicycle inner tube |
| 06/01/1993 | US5215118 Compact swing check valve |
| 06/01/1993 | US5215117 Double-check filler valve |
| 05/27/1993 | WO1993010386A1 Seat-type pressure-relief valve |
| 05/26/1993 | EP0543471A2 Apparatus and method for supercritical fluid extraction |
| 05/26/1993 | CN1072481A Automatically closing valve of inflatable body |
| 05/25/1993 | US5213488 Valved discharge mechanism of a refrigerant compressor |
| 05/25/1993 | US5213306 Quick-action flap |
| 05/25/1993 | EP0574419A4 N-shaped backflow preventor. |
| 05/19/1993 | EP0351421B1 One-way valve |
| 05/19/1993 | CN2133733Y Inverted valve |
| 05/19/1993 | CN1072251A Direct-drive one-way valve |
| 05/13/1993 | WO1993009368A1 Ring check valve |
| 05/13/1993 | DE4136979A1 Druckbegrenzungsventil in sitzbauweise Pressure relief valve seat construction method |
| 05/12/1993 | CN2132893Y Water inlet and outlet control valve of water heater |
| 05/12/1993 | CN2132892Y Slowly-closed check valve having small-resistance elasticity |
| 05/12/1993 | CN2132882Y Check and stop dual-purpose valve |
| 05/12/1993 | CN2132846Y Corrosion and abrasion resistant pump valve of oil-well pump |
| 05/11/1993 | US5209264 Check valve |
| 05/11/1993 | CA1317526C Pressurized check valve |
| 05/06/1993 | DE4135867A1 Manschettenrueckschlagventil Manschettenrueckschlagventil |
| 05/05/1993 | CN2132049Y Inflation valve for tyre of vehicle |
| 05/05/1993 | CN2132048Y Non-rubber tube air valve of tyre |
| 05/05/1993 | CN2132047Y Fully dydaulic micro-resistance delayed closing check-valve |
| 05/04/1993 | USRE34243 Valve assembly |
| 05/04/1993 | US5208429 Combination muffler and check valve for a screw compressor |
| 04/29/1993 | WO1993008059A1 A check valve |
| 04/29/1993 | CA2120238A1 A check valve |
| 04/29/1993 | CA2075219A1 Duckbill conservation vent valve |
| 04/28/1993 | CN2130986Y Cock |
| 04/28/1993 | CN2130985Y Liquid-controlled check butterfly valve |
| 04/28/1993 | CN2130984Y timing control valve for liquid and gas |
| 04/27/1993 | US5205441 Suction and/or discharge valve for a metering and spray pump for dispensing liquid, low-viscosity and pasty substances |
| 04/27/1993 | CA1316791C Combination plug and two-way check valve |
| 04/21/1993 | EP0537665A2 Check valve |
| 04/21/1993 | CN1020349C Delivery valve |
| 04/20/1993 | US5203831 Topping and dumping valve for inflatable structures |
| 04/15/1993 | DE4133391A1 Seat valve for slip-controlled brake - has valve closure of wrought aluminium alloy, which is closed by valve closing force |
| 04/14/1993 | CN2129853Y Multi-purpose check valve |
| 04/14/1993 | CN2129852Y Filling liquid air valve |
| 04/07/1993 | EP0535904A1 Check valve for fluid bladders |
| 04/07/1993 | CN2129360Y Inflating valve for bicycle |
| 04/01/1993 | WO1993005684A1 Pneumatic support system |
| 03/30/1993 | US5198197 Apparatus and method for supercritical fluid extraction |
| 03/30/1993 | CA1315311C Self-contained valve for enclosed casing, fabrication process thereof and means allowing usage of that process |
| 03/24/1993 | EP0533616A2 Self closing valve for an inflatable body |
| 03/24/1993 | CN2128684Y Up-down check valve |
| 03/23/1993 | US5195719 Butterfly valves with actuators carried on valve plate |
| 03/23/1993 | US5195552 Check valve with exchangeable valving elements |
| 03/18/1993 | DE4222732A1 Maximum operation angle single plug and puppet type retention valves |
| 03/17/1993 | CN2128327Y Safety air valve |
| 03/17/1993 | CN1069849A Claw bowl |
| 03/16/1993 | US5193585 Duckbill conservation vent valve |
| 03/10/1993 | EP0531262A2 Safety valve for pressure vessels such as coffee machines, electric iron boilers, steam floor washing machines and the like |
| 03/10/1993 | EP0530498A1 Flap valve |
| 03/10/1993 | CN2127884Y Air inflating article inlet |