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)
01/1986
01/07/1986US4562861 Double-ended liquid line thermal insulator
01/07/1986CA1198962A1 Check valve
01/07/1986CA1198935A1 Submersible pump check valve
12/1985
12/18/1985EP0164438A1 Hydraulic valve
12/17/1985US4558587 Ball-type vacuum valve for leak detection apparatus
12/11/1985EP0164189A1 Flow rate control valve
12/11/1985EP0163771A2 Blocking valve for a load-lowering brake
12/10/1985US4557180 Control valve and hydraulic system employing same
12/05/1985WO1985005430A1 Valve arrangement for unloading liquid flow at a non-return valve
12/05/1985WO1985005409A1 Pump valves
12/04/1985EP0163098A2 Valve for a load-lowering brake
12/03/1985US4556086 Dual disc low pressure back-check valve
12/03/1985US4556083 Pressure relief valve and method for modification thereof
11/1985
11/21/1985WO1985005162A1 Wafer check valves
11/21/1985EP0161348A2 Gas fuse
11/19/1985US4553907 Unloading mechanisms for air compressors
11/19/1985US4553560 Anti-siphon control valve
11/12/1985US4552174 Spring-loaded check valve
11/06/1985EP0160576A1 Wafer check valves
11/06/1985EP0160463A2 Valve element for use in an ink-jet printer head
11/05/1985US4550878 Drip irrigator with pressure responsive flow regulator
11/05/1985US4550749 Adjustable check valve
11/05/1985CA1196353A1 Tennis ball
10/1985
10/29/1985US4549565 Reclosing rupture disk assembly
10/22/1985US4548235 Fluid handling device
10/15/1985US4546792 Ball-plug pendulum check valve
10/09/1985EP0156974A2 Three-stage valve for the flow control of body fluids
10/08/1985US4545404 Bonded valve with replaceable insert
10/08/1985US4545287 In a hydraulic circuit
10/01/1985US4543989 Discharge valve assembly for refrigeration compressors
10/01/1985US4543986 Ball check valve and plate
09/1985
09/18/1985EP0154641A1 Fluid handling device
09/10/1985US4540400 Non-invasively adjustable valve
09/10/1985US4540345 Precompression valve for hydraulic pumps
09/10/1985US4540027 Check valve for infusion and transfusion apparatus
09/04/1985EP0153909A1 On/off device for fluids
09/03/1985US4538508 Roof ventilator having fluid flow control and method of making same
08/1985
08/27/1985US4537384 In-line check valve having combined downstream poppet support and flow control elements
08/27/1985US4537216 Anti-knock liquid flow control valve
08/27/1985US4537213 Double flapper check valve
08/21/1985EP0151688A2 Valve for the prevention of backflow of liquid and gaseous media
08/20/1985US4535820 Normally closed check valve
08/20/1985US4535819 For use within a flow path
08/20/1985US4535818 For use within a flow path
08/20/1985US4535808 Check valve
08/20/1985US4535807 Automatic air valve device for ducts
08/20/1985US4535806 Valve assembly for the supply of a pressurized gaseous fluid to closed containers
08/15/1985WO1985003559A1 Full opening check valve
08/13/1985US4534759 Valve for supplying, controlling and taking out a medium contained in an implanted container
08/06/1985US4532958 Check valve having replaceable valve assembly
08/06/1985CA1191516A1 Abductor-adductor exercise device
08/06/1985CA1191422A1 Check valve assembly for use in backflow preventers or the like
07/1985
07/31/1985EP0149695A1 Pressure-release valve for a packaging container
07/30/1985US4531624 Check valve used with vacuum system for an automotive vehicle
07/30/1985US4531543 Uni-directional flow, fluid valve
07/24/1985EP0149225A2 Apparatus for compensating pressure and flow fluctuations in fuel supply systems for gas turbines
07/02/1985US4526195 Reinforced plastic structure such as a valve
06/1985
06/26/1985EP0145918A2 Method and apparatus for batch carbonating
06/25/1985US4524805 Normally closed duckbill valve and method of manufacture
06/18/1985US4523610 Check valve
06/04/1985US4520842 High pressure valve for positive pressure pumps including means for installing and removing the valve
06/04/1985CA1188194A1 Relief valves for sanitation systems or the like
05/1985
05/29/1985EP0142787A2 A valve for use with hydraulic ram assemblies
05/21/1985US4518329 Wear resistant pump valve
05/21/1985US4518014 Relief valves for sanitation systems or the like
05/21/1985CA1187379A1 Spring-loaded valve
05/21/1985CA1187377A1 Check valve
05/14/1985US4516602 Disc valve
05/02/1985EP0139347A1 Valve assembly
05/02/1985EP0139246A2 Ball valve
04/1985
04/30/1985US4513784 Check valve assembly
04/30/1985US4513778 Check valve
04/23/1985US4512447 Hydraulic damper
04/23/1985US4512243 Ventilator having insert for controlling moisture and method of making same
04/23/1985CA1185935A1 Spray valve arrangement
04/09/1985US4509546 Firesafe seal
04/03/1985EP0135991A1 Surgically implantable hydrocephalus valve
04/02/1985US4508139 Top-entry check valve
04/02/1985US4508137 Wall mountable vacuum breaker
03/1985
03/27/1985EP0135285A1 Improvements relating to seals
03/27/1985EP0135140A1 Medical retainer valve, especially for a balloon catheter
03/26/1985US4506507 Reservoirs for liquid pressure control systems
03/19/1985US4505656 Vane compressor, particularly a cooling medium compressor for use in air-conditioning equipment of a vehicle
03/19/1985US4505648 Unloading mechanisms for air compressors
03/14/1985WO1985000984A1 Non-return valve for medical application, particularly for a balloon catheter
03/12/1985US4504081 Check valve in pressure control circuit
03/12/1985US4503882 Flow valve
03/12/1985US4503678 Reservoirs for liquid pressure control systems and a method of filling the same
03/06/1985EP0089341B1 A sealing device for valves
03/05/1985US4502503 Vacuum breaker valve with internally balanced disc
02/1985
02/28/1985WO1985000868A1 Fluid handling device
02/26/1985US4501292 Ball-type check valve
02/26/1985CA1183061A1 Non-return valve
02/19/1985US4499916 Vacuum check valve
02/12/1985US4498494 Air control for a lumbar support device
02/12/1985CA1182436A1 Compressor discharge valve
02/12/1985CA1182433A1 Liquid dispensing pump
02/12/1985CA1182426A1 Pressure regulating valve
02/05/1985CA1182029A1 Backwater drain valve
01/1985
01/29/1985US4496355 External female urinary appliance
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