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)
10/2003
10/09/2003WO2003083335A1 Disc check valve
10/09/2003WO2003083321A1 Pressure control valve for hydraulic actuation assembly
10/09/2003WO2003053271A3 Control valve
10/09/2003US20030188790 Underpressure valve
10/09/2003US20030188785 Discharge valve
10/09/2003US20030188783 Suction valve
10/09/2003US20030188781 Control stop cap friction ring
10/08/2003EP1350896A2 Valve arrangement for a back flow preventer
10/08/2003EP1350029A2 Valves and pumps for microfluidic systems and method for making microfluidic systems
10/08/2003CN2578635Y Check valve with flexible outward segment
10/08/2003CN2578634Y Check valve with flexible inward segment
10/08/2003CN2578633Y Valve core of rustproof one-way valve
10/08/2003CN1447885A 液压阀 Hydraulic valve
10/08/2003CN1447707A Self contained sport ball inflation mechanism
10/08/2003CN1447052A Novel controllable non-return valve
10/07/2003US6629525 Portable oxygen concentration system and method of using the same
10/02/2003WO2003081101A1 One way anti-back flow valve
10/02/2003WO2003081047A1 Valve arrangement for reciprocating machinery such as a pump and a compressor
10/02/2003WO2003052302A3 Annular valve
10/02/2003US20030183797 Suction valve for water bag
10/02/2003US20030183288 Adjustable air supply valve of air cushion bed
10/02/2003US20030183286 Water control valve device having check valve
10/02/2003US20030183285 Water control valve device having check valve
10/02/2003US20030183278 Particle-based check valve
10/02/2003US20030183275 Hot and cold water mixing faucet having check valve
10/01/2003EP1348090A2 Quick connector with one-way check valve
10/01/2003CN2577066Y Check valve for kitchen hood with noise-reducing function
10/01/2003CN2576515Y Tyre anti-explosion safety air-valve
10/01/2003CN1122767C Ball check valve and lifting device using the same
10/01/2003CN1122627C Pouck reservoir valve
09/2003
09/30/2003US6626418 Needle free access valve
09/30/2003US6626208 Check valve for use in a pressure balance faucet
09/30/2003US6626204 Cylinder valve assembly with check valve
09/30/2003US6626201 Apparatus for preventing reverse flow in drainage
09/25/2003WO2003078878A1 Lighter with improved thermodynamics
09/25/2003WO2003078876A1 Vacuum demand flow valve
09/25/2003WO2003078840A1 Flush valve
09/25/2003WO2003078265A1 Valve stop
09/25/2003WO2003050491A9 Low pressure measurement devices in high pressure environments
09/25/2003WO2003021139A3 Pressure-activated flexible valve
09/25/2003CA2479804A1 Lighter with improved thermodynamics
09/25/2003CA2476623A1 Valve stop
09/24/2003EP1346142A1 Exhaust-gas recirculation valve comprising a pivotally mounted pressure control plate
09/24/2003EP1345648A2 Sealing valve assembly for medical products
09/24/2003CN2575388Y Mobile valve pipe coupling device
09/24/2003CN2575387Y V shape sloping elastic valve micropressure safety valve
09/24/2003CN2575386Y Automatic drainage valve
09/24/2003CN1443580A Medical equipment
09/23/2003US6623257 Disposable mechanism for taking out a fixed amount of fluid and system for supplying a fixed amount of fluid
09/23/2003US6622749 Air faucet
09/23/2003CA2068360C Aerosol inhalation device
09/18/2003WO2003075796A2 Methods and devices for inducing collapse in lung regions fed by collateral pathways
09/18/2003US20030173537 Valve stop
09/18/2003US20030173536 Bite valve
09/18/2003US20030172973 Check valve
09/18/2003US20030172972 Replaceable check valve seats
09/17/2003EP1343555A2 An improved sealing valve assembly for medical products
09/17/2003CN2573808Y Blade guide type check valve for common exhaust duct for dwelling
09/16/2003US6619324 Non-return bias valve mechanism for a fluid pumping assembly
09/16/2003US6619322 Fast-acting valve
09/16/2003US6619316 Check valve having adjustable lift, packing assembly, and retrofit kit for same
09/12/2003WO2003074915A1 Lavatory service shut-off valve
09/12/2003WO2003074913A1 Check valve
09/12/2003WO2003074912A1 Combined check/ pressure control valve
09/11/2003US20030171721 Medical device
09/11/2003US20030168108 Pressure control valve
09/11/2003US20030168105 Swing check backflow preventer having check valve with lever arm
09/11/2003US20030168103 Check valve
09/10/2003EP1343064A1 Pressure control valve
09/09/2003US6615864 Torsion spring pool cleaner reed valve
09/09/2003US6615774 Adjustable pressure actuated fuel/air diaphragm valve assembly
09/09/2003US6615760 Boat drain plug
09/04/2003WO2002099321B1 Control valve
09/04/2003US20030164559 Self-sealing dispensing valve for humidifier water bottles
09/04/2003US20030164192 Multi-way valve employing two-state operator
09/04/2003CA2418604A1 Self-sealing dispensing valve for humidifier water bottles
09/03/2003EP1339607A1 Vent valve assembly
09/03/2003EP1339464A1 Method of manufacturing a sport ball
09/03/2003EP1214634B1 Automatic valve for the stabilization of a thermostatic mixing device
09/03/2003EP0936935B1 Valve assembly
09/03/2003CN1440305A Medium cracking pressure valve arrangement
09/03/2003CN1120314C Container and sealing device for use in container
09/02/2003US6612329 Deters unauthorized or accidental removal from tire; snappably secured using spring loaded tab; does not require tool or key; simple, low cost
08/2003
08/28/2003WO2003044289A3 Device for preventing the reverse flow of washing, showering or bath water into the fresh water line system
08/28/2003US20030162614 Hydraulic tensioner
08/28/2003US20030159734 Vacuum demand flow valve
08/28/2003US20030159731 Combination pressure relief and topping valve
08/28/2003US20030159205 Lavatory service shut off valve
08/28/2003DE20309537U1 Check valve assembly is formed by annular disc with central bore and one-way valve with valve plate covering central bore in first position and which inside cage fastened to disc is movable into second position opening central bore
08/27/2003EP1338294A2 Method and apparatus for providing limited back-flow in a blood pump during a non-pumping state
08/27/2003CN2568900Y Micro-resistance hammer removal check valve
08/27/2003CN2568899Y Special check valve for water supply to high building
08/27/2003CN1119542C Activation pin
08/26/2003US6609535 Reed valve and method of making same
08/21/2003WO2003069129A1 Double-action bleeding valve of steam turbine
08/21/2003WO2003068035A2 Fluid dispensing and storage system with a drink valve
08/21/2003WO2001066190A3 Methods and devices for use in performing pulmonary procedures
08/21/2003US20030155023 Fluid supply valve
08/21/2003US20030155008 Cross over valve
08/21/2003CA2418767A1 Method and apparatus for providing limited back-flow in a blood pump during a non-pumping state
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