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)
06/2003
06/12/2003US20030106590 Airless paint pump inlet spring
06/12/2003US20030106589 Unidirectional valve for flexible packages, preferably made with laminar plastic materials
06/12/2003US20030106142 Inflatable insulation incorporating pressure relief means
06/12/2003US20030106141 Inflatable insulation incorporating pressure relief means
06/11/2003EP1317399A2 Microelectromechanical flexible membrane electrostatic valve device and related fabrication methods
06/11/2003CN2555444Y Guide check exhaust valve
06/10/2003US6575718 High pressure fuel supply apparatus
06/10/2003US6575190 Non-return valve for fuel tank
06/05/2003WO2003045503A1 Filtering face mask that uses an exhalation valve that has a multilayered flexible flap
06/05/2003CA2466481A1 Filtering face mask that uses an exhalation valve that has a multilayered flexible flap
06/04/2003EP1315927A1 Short-length reduced-pressure backflow preventor
06/04/2003EP1315657A1 Self-sealing valve
06/04/2003EP1117957B1 Non-return valve
06/04/2003EP1032783B1 Valve actuator
06/04/2003CN2554437Y Non-return air valve
06/03/2003US6571835 Valve assembly, apparatus and method of filing a pressurized gas container
06/03/2003US6571818 Automobile tires having seal surfaces to prevent against instantaneous depressurization; protective devices
06/03/2003US6571753 Passive air vent for a marine engine
05/2003
05/30/2003WO2003044289A2 Device for preventing the reverse flow of washing, showering or bath water into the fresh water line system
05/30/2003WO2002103190A3 Double acting simplex plunger pump with bi-directional valves
05/29/2003US20030098074 Valve
05/28/2003EP1314920A2 Check valve
05/28/2003EP1314896A2 Reservoir having a ventilating structure
05/28/2003EP1313975A1 Air admittance valve assembly
05/28/2003EP1313974A2 Modular two way check valve construction
05/28/2003EP1313953A1 Unlockable non-return valve for very high system pressures
05/28/2003EP1313519A1 Inner lumen anti-free flow device
05/28/2003EP1135614B1 Releasable check valve for very high system pressures
05/28/2003DE20201330U1 Shut-off valve has valve component which on inlet flow side has impingement surface installed in plane orientated at right angles to direction of flow, and annular gap defined by valve component has nozzle-form convergence
05/28/2003CN2553210Y Superhigh pressure liquid controlled check valve
05/28/2003CN2553209Y Check valve
05/28/2003CN1420798A Self-contained sport ball inflation mechanism
05/28/2003CN1420262A Method and device for adjusting cooling blast supply system of turbine
05/28/2003CN1109833C Valve structure with profile holder
05/27/2003US6568473 Gas lift valve with central body venturi
05/27/2003CA2412716A1 Valve
05/27/2003CA2272889C Safety valve for an inverted liquid-filled canister
05/22/2003WO2003043106A1 Seal and bleed valve unit for electric batteries
05/22/2003WO2003042461A1 Integratable sanitary part
05/22/2003US20030094198 Locking valve stem and cap apparatus
05/21/2003EP1312763A1 Method and apparatus for regulating turbine cooling airflow supply system
05/21/2003EP1311781A1 Hydraulic valve
05/21/2003EP1311780A1 Bleed member and bleed valve assembly
05/21/2003EP0996837B1 Valve
05/21/2003CN2551828Y Device for preventing exhausting pipeline of fume exhaustor from getting into foreign matter
05/21/2003CN1419108A Vane type flow detector
05/21/2003CN1109211C Quantitative snift valve for pressure cylinder of hydraulic press
05/20/2003US6565336 Normally unseated suction valve
05/20/2003US6564828 Check valve
05/15/2003WO2003040563A1 Discharge valve and compressor using the same
05/15/2003WO2002049701A9 Sealing valve assembly for medical products
05/15/2003US20030091428 Methods and apparatus for regulating turbine cooling airflow supply systems
05/15/2003US20030089409 Valve device with check valve, used for washer nozzle and hose joint
05/15/2003US20030089404 Check valve with multiple doors
05/15/2003US20030089396 Valve for inflatable objects
05/14/2003EP1310723A2 Valve comprising a circumferential axial seal
05/14/2003EP1310713A2 Sealing elements for compressor valves
05/14/2003EP1310712A2 Sealing elements for compressor valves
05/14/2003CN1417503A Sealing element for air compressor valve
05/14/2003CN1417472A Sealing element for valve of compressor
05/13/2003US6561211 Fuel tank vent control valve
05/08/2003US20030085533 Sealing elements for compressor valves
05/08/2003US20030085532 Sealing elements for compressor valves
05/08/2003US20030085370 Lacquer bullet gun gas entry valve
05/08/2003US20030084941 Check valve for fuel pump
05/07/2003EP1308567A2 Non-return valve
05/07/2003EP1307278A1 Portable oxygen concentration system and method of using the same
05/07/2003CN2549281Y 止回球阀 Non-return valve
05/07/2003CN1107828C Dual plate check valve
05/07/2003CN1107809C Cylinder having buffer mechanism
05/02/2003EP1306115A2 Latex free balloon and manufacturing process
05/01/2003WO2002027685A9 Double check valve assembly for fire suppression system
05/01/2003US20030079778 Air faucet
04/2003
04/30/2003CN2547978Y Displacement type water-controlled silencing, slow-closing non-return valve
04/30/2003CN2547977Y Full-closed combined non-return valve
04/30/2003CN2547976Y Micro-dramping, slow-closing non-return valve
04/30/2003CN2547975Y Washing-free blowby and flow-back-resistant pressure-changing flow-guiding valve
04/30/2003CN2547974Y Automatic anti-blowly, anti-flow-back exhaust valve
04/30/2003CN1107182C Valve for inflatable objects
04/29/2003US6554805 Infusion rate adjusting device for drug solution injector
04/29/2003US6554023 Vacuum demand flow valve
04/29/2003US6554018 Water closet flushing system
04/24/2003US20030075224 High efficient valve assembly of compressor
04/24/2003US20030075218 Air valve for inflatable article
04/24/2003US20030074725 Water closet flushing system
04/23/2003CN2546708Y 止回阀 Check
04/23/2003CN1412437A High efficient valve assembly for compressor
04/23/2003CN1106552C Sealed electric compressor
04/23/2003CA2359773A1 Pressure control valve and a compressed air dehumidification device that uses this
04/22/2003US6550901 Ink cartridge for ink jet printer
04/22/2003US6550832 Actuator
04/22/2003US6550498 Fluid supply valve
04/22/2003US6550493 Vacuum demand valve
04/17/2003WO2002099321A3 Control valve
04/17/2003WO2002075189A3 Connector apparatus and method of coupling bioprocessing equipment to a media source
04/17/2003US20030071235 Passive microvalve
04/17/2003US20030071081 Valve assembly for pressurized fluid containers
04/17/2003US20030070713 Check valve and valve arrangement comprising such a check valve
04/17/2003US20030070712 Discharge valve assembly of fluid machinery
04/16/2003EP1058798B1 Tank transport pressure relief valve assembly
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