Patents
Sitemap › F16 - Engineering elements or units; General measures for producing and maintaining effective functioning of machines or installations; Thermal insulation in general › F16K - Valves; Taps; Cocks; Actuating-floats; Devices for venting or aerating › F16K 15 - Check valves
Patents for F16K 15 - Check valves (18,131)
08/1982
08/31/1982US4346735 Water faucet and attachment therefor
08/31/1982US4346731 Buoyant element check valve for a thermosiphon energy system
08/31/1982CA1130773A1 Arrangement for regulating the flow of a gaseous medium in a conduit
08/31/1982CA1130696A1 Check-valve construction
08/24/1982CA1130168A2 One-way flex valve
08/24/1982CA1130161A1 Drip chamber with backflow ball valve
07/1982
07/28/1982EP0056522A1 Reservoirs for liquid pressure control systems
07/27/1982US4341239 Combination check-overpressure relief valve
07/27/1982CA1128405A1 Non-return flap valve
07/27/1982CA1128404A1 Anti-drip valve
07/20/1982US4340084 Check valve
07/20/1982US4340080 Inflation valve
07/20/1982US4339831 Dynamic annulus heart valve and reconstruction ring
07/14/1982EP0055959A2 Heat pump
07/13/1982US4339233 Power-assisted valve
07/13/1982US4338981 Valve service apparatus
07/06/1982US4337792 Fluid reservoir for brake master cylinders
07/06/1982CA1127068A1 Mass transfer equipment
06/1982
06/30/1982EP0054722A1 Pilot-controlled check valve
06/08/1982US4333495 Check valve assembly
06/01/1982US4332255 Shunt valve
06/01/1982US4332249 Filter and valve assembly for hypodermic syringe
06/01/1982CA1124615A2 Check valve
05/1982
05/25/1982CA1124160A1 Check valve
05/18/1982US4330006 Damping device for check valves
05/12/1982EP0051062A1 Check valve with removable seat
05/11/1982US4329125 Discharge valve
05/04/1982US4327912 Tennis ball
04/1982
04/28/1982EP0050446A2 Damper valve
04/20/1982US4325680 Valve system for encapsulated motor-compressor units
04/15/1982WO1982001236A1 Direct-flow valve
04/13/1982US4324097 Non-return valve
04/13/1982CA1121693A1 Back pressure regulator and non-return valve
04/06/1982CA1121249A1 Fluid flow regulating valve and system
03/1982
03/31/1982EP0048421A1 Dispenser
03/31/1982EP0048419A1 Swing-type check valve
03/30/1982US4321944 Check valve
03/30/1982US4321942 Backflow preventer valve
03/30/1982US4321940 Unloader/check valve
03/30/1982CA1120825A1 Check valve
03/24/1982EP0047809A1 Head of an air pump for inflating tyres having a motor-cycle valve
03/23/1982US4320776 Construction of the ball bladder orifice
03/10/1982EP0047055A1 Valves
03/09/1982CA1119502A1 Fluid pressure-operated valves
02/1982
02/23/1982CA1118670A1 Capsular air valve for tires
02/18/1982WO1982000516A1 Device for metering liquids
02/16/1982US4315524 Damping device for check valves
02/16/1982CA1118316A1 Check valve
02/09/1982US4314592 Tree felling system with cam-operated hydraulic check valve
02/09/1982US4314583 Backwater valve
02/02/1982US4313456 Universal check valve assembly
02/02/1982CA1117500A1 Low stress suction or discharge reed valve for compressor
01/1982
01/26/1982US4312376 Pressure-sustaining valve
01/26/1982CA1116976A1 Backflow preventer
01/26/1982CA1116802A1 Two-leaflet heart valve
01/19/1982USRE30849 Anti-siphon and backflow prevention valve
01/12/1982US4310018 Check valve assembly
01/12/1982US4310017 Backflow check valve for use with IV administration sets
01/12/1982US4310014 Tire pressure indicator integral with tire stem
01/12/1982CA1116128A2 Pressure relief valve for product containers
01/05/1982US4308894 Dust trap and valve with auxiliary pressure equalizing valve
01/05/1982US4308885 Tubular safety element for closing a flow line
12/1981
12/29/1981US4307751 Plate valve
12/29/1981US4307747 Dust trap with removable valve seat
12/29/1981US4307731 Multiple sampling needle having one-way valve
12/29/1981CA1115171A1 Valve assembly
12/22/1981CA1114717A1 One-way flex valve
12/15/1981US4305425 Oral inflation valve
12/15/1981US4305424 Valve assembly
12/15/1981US4305423 Combination stop and pressure reducing valve
12/10/1981WO1981003534A1 Valve for volume displacement machines
12/08/1981US4304265 Spring-biased flap valve for chemical pump and the like
12/08/1981US4304255 Swing check valve
12/02/1981EP0040930A1 Valve structure with seating member composed of fibre reinforced plastic resin material
12/01/1981CA1113346A1 Check valve
11/1981
11/24/1981CA1113050A1 Unitary valve and spring assembly
11/17/1981US4300593 Back pressure regulator and non-return valve
11/12/1981WO1981003212A1 Check valve with removable seat
11/10/1981US4299250 Check and regulator valve
11/04/1981EP0039112A1 Valve closure and check valve embodying the same
11/04/1981EP0038906A1 Ring-shaped plate valve
11/03/1981US4298023 Spring loaded exhalation valve
10/1981
10/27/1981US4296772 Non-return valve
10/27/1981US4296721 Control system having an improved condition responsive valve construction
10/20/1981US4295412 Hose with a one-way valve for a vacuum operated servomotor
10/13/1981US4294301 Valve construction for tubeless tire
10/13/1981CA1110519A1 Flow cut-off device for insertion in a gas duct
10/06/1981US4292999 Valve for toy balloons
09/1981
09/22/1981US4290454 Back flow valve
09/22/1981US4290152 On-off snap action water and energy saving valve attachment for sink spout
09/15/1981US4289166 Clog-proof check valve
09/15/1981US4289159 Outlet valve for a gas compressor
09/15/1981CA1109028A1 Pressure relief valve for product containers
09/08/1981US4287912 Monoflow ball valve and system
09/08/1981US4287905 Anti-backflow valve for a faucet
09/01/1981US4286664 Positive seal float collar
09/01/1981US4286628 Control of fluid flow using longitudinally movable disc
09/01/1981US4286622 Check valve assembly
09/01/1981US4286621 Dual acting check valve dampener
08/1981
08/26/1981EP0034159A1 Process for increasing the dispersion and homogeneity of plastic or colouring material in injection molding machines or extruders
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