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)
07/1999
07/06/1999US5918628 Multi-stage check valve
07/01/1999WO1999033089A2 Method and device for detecting sample molecules in a carrier gas
07/01/1999WO1999032816A1 Dual backflow check valve
07/01/1999WO1999026002B1 Valve actuator
07/01/1999DE19860726A1 Linear compressor
06/1999
06/30/1999EP0925465A1 Valve mechanism
06/30/1999CN2326795Y Air-valve of inner tube of power vehicle
06/30/1999CN2326794Y Automatic-discharging-gas cylinder
06/30/1999CN1221107A Combined water meter
06/29/1999US5915407 Ball with inflation valve sleeve for rapid deflation
06/29/1999US5915405 Two-way diverter check valve
06/24/1999WO1999031420A1 Piezoelectric valve
06/24/1999WO1999030918A1 Fuel tank one-way flow valve quick connector
06/23/1999EP0923688A1 Positively controlled ball valve
06/23/1999CN2325692Y Full sealing type single direction valve for cooking fume remover
06/23/1999CN2325605Y Tyre inflating valve inside
06/23/1999CN2325604Y Lifting/lowering vertical check valve
06/23/1999CN2325603Y Valve for controlling pressure guage
06/23/1999CN2325602Y Multi-functional valve used as stop, throttling and check valve
06/23/1999CN1220726A Water-hammerless check valve device
06/23/1999CN1220125A Inflatable mattress and its making method
06/22/1999US5913331 Permitting downstream fluid flow
06/22/1999US5913330 Pressure/vacuum relief valve assembly
06/17/1999WO1999030066A1 Universal valve
06/17/1999CA2312863A1 Universal valve
06/16/1999EP0922649A1 Plastic safety valve for containers
06/16/1999EP0750715B1 Valve for use in float equipment
06/16/1999CN2324347Y Non-return valve
06/16/1999CN1219999A Valve for liquids
06/16/1999CN1219661A Assembly of inner tube air valve and hidden wireless tyre pressure alarm
06/15/1999US5911881 Biasing device that guides file into restrictor
06/15/1999US5911285 Erosion resistant downhole mud diverter tool
06/10/1999WO1999028615A1 Control valve for a jet pump
06/10/1999DE19754566A1 Backflow prevention valve for water supply
06/09/1999EP0633990B1 Backflow preventor with adjustable outflow direction
06/09/1999CN2323216Y 自动控制阀 Automatic control valves
06/09/1999CN2323208Y Balance check valve
06/09/1999CN2323207Y Shock-absorbing flexible rubber check valve
06/09/1999CN1219227A Activation pin
06/03/1999WO1999027283A1 Check valve for inflation of balls
06/03/1999WO1999027253A1 Diaphragm pump with modified valves
06/02/1999EP0918965A1 Inflatable device with pressure limiting valve
06/02/1999EP0918728A1 Expandable lifting devices and valve assemblies for such lifting devices
06/02/1999CN2321997Y Float hall type ball-shaped check valve
06/02/1999CN2321996Y Dampingless unloading check valve for air compressor
06/02/1999CN2321995Y Check valve for deep well pump
06/02/1999CN2321994Y Combined explosion wave proof check valve
06/02/1999CN2321993Y Gas discharging device for oil gas separator
05/1999
05/27/1999WO1999026002A1 Valve actuator
05/27/1999CA2310371A1 Valve actuator
05/26/1999CN2320856Y Tyre valve inside
05/26/1999CN2320855Y Check valve
05/25/1999US5906352 Cartridge check valve
05/19/1999EP0916048A1 Pump protection fitting
05/19/1999EP0916047A1 Dual plate check valve
05/18/1999US5904179 Inlet check valve
05/18/1999US5904174 Auxiliary tap valve
05/14/1999WO1999023405A1 Exhaust gas recirculation valve assembly having an integrated check valve
05/12/1999CN2318473Y Air inflation for inner tube sealed valve
05/12/1999CN2318472Y Micro-block slow-close butterfly check valve
05/12/1999CN2318471Y Check valve for pipe line of hyperfilevation pure water machine
05/06/1999WO1999021599A1 Intrapulmonary aerosolizer
05/06/1999DE19837960A1 Valve unit with inlet and outlet ducts
05/04/1999US5899435 Molded rubber valve seal for use in predetermined type valves, such as, a check valve in a regenerative desiccant air dryer
05/04/1999CA2172785C Two-piece check valve assembly
04/1999
04/28/1999EP0910764A1 Container and sealing device for use in the container
04/28/1999EP0910763A1 Valve for inflatable objects
04/28/1999EP0910762A1 Non return valve system and method for forming said non return valve system
04/27/1999US5897828 Method and apparatus for the manufacture of duckbill valves
04/21/1999CN2315387Y One-way valve of air conditioner
04/21/1999CN2315386Y Check valve for waste water
04/21/1999CN2315385Y 改进的逆止阀 Improved check valve
04/21/1999CN2315384Y Oil/water check valve
04/21/1999CN2315383Y Multifunctional check valve
04/21/1999CN2314665Y Automatic constant temperature electric heating inflating mattress
04/21/1999CN1214199A Slope neutralizer for poultry watering systems
04/14/1999EP0908652A2 Valved device with automatic and/or manual actuation for quickly inflating life-jackets or other items
04/14/1999EP0908651A2 Check valve device
04/14/1999EP0907850A1 Sealing devices
04/14/1999EP0808271B1 Safety device
04/14/1999CN2314185Y 止回阀 Check
04/14/1999CN2314184Y One way valve with guiding cylinder and floating ball
04/14/1999CN2314183Y Slowly closing buterfly style check valve
04/14/1999CN2314182Y One way valve for ultra-pressure water cutting process
04/13/1999US5893708 Rotating piston for ball and seat valve assembly and downhole pump utilizing said valve assembly
04/13/1999US5893389 Metal seals for check valves
04/08/1999DE19752963C1 Regulating valve for jet pump
04/07/1999EP0906529A1 Activation pin
04/07/1999CN2313122Y Return-water automatic opening-closing valve
03/1999
03/31/1999CN2312373Y Two purpose valve
03/30/1999US5887619 Dry disconnect coupling assembly
03/30/1999US5887615 Check valve of fuel tank
03/25/1999DE19741249A1 Seat valve with housing for valve body, and spring
03/24/1999EP0903496A2 Pressure control for a double diaphragm pump
03/24/1999EP0903179A1 Microvalve
03/24/1999CN2311665Y Air valve
03/24/1999CN2311664Y Plate sealing valve mouth of inner tyre for bicycle
03/24/1999CN1211685A Diaphragm pump
03/23/1999US5884665 Air conditioning reed valve support seat
03/18/1999WO1999013252A1 Non-return valve, especially for a piston pump
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