| Patents for F16K 15 - Check valves (18,131) |
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| 07/27/2011 | CN201909073U Roots blower safety valve |
| 07/27/2011 | CN201909071U Improved structure of reduced pressure type backflow preventer |
| 07/27/2011 | CN201909070U Special check valve for tank top assembly |
| 07/27/2011 | CN201907497U Bidirectional check valve meeting AAR (association of American railroads) standards |
| 07/27/2011 | CN102135199A Check valve |
| 07/27/2011 | CN102135198A Guide fireproofing check valve |
| 07/27/2011 | CN102135197A Asymmetrical water seal check valve |
| 07/27/2011 | CN101776167B Check valve |
| 07/27/2011 | CN101746562B High-pressure aerated air sealing body and air stopping valve thereof |
| 07/27/2011 | CN101479120B A pressure relief device for an inflatable tire |
| 07/27/2011 | CN101449063B Compressor assembly comprising a valve unit in the intake region |
| 07/26/2011 | US7984728 Fuel pressure regulator valve assembly |
| 07/26/2011 | US7984727 Valve for control of high pressure air pressure air pulse |
| 07/26/2011 | CA2435580C Gas lift valve with central body venturi for controlling the flow of injection gas in oil wells producing by continuous gas lift |
| 07/21/2011 | WO2010037073A3 Central tire inflation wheel assembly and valve |
| 07/21/2011 | US20110174397 Pressure control valve |
| 07/21/2011 | US20110174393 Proportional Valve Assembly |
| 07/21/2011 | US20110174390 Enhancing insulating properties at higher temperature utilizing soft seals |
| 07/21/2011 | US20110174389 Sealing Apparatus with Interlocking Air Inflation Device for Wafer Carrier |
| 07/21/2011 | DE102010005136B3 Non-return valve i.e. four-pass non-return valve, for use in exhaust gas recirculation pipes of internal combustion engine, has fastening region attached at slot-shaped recesses between through holes, and closure region covering holes |
| 07/21/2011 | DE102010005117A1 Rückschlagventil für eine Verbrennungskraftmaschine und Verfahren zur Herstellung eines derartigen Rückschlagventils Check valve for an internal combustion engine and method for producing such a non-return valve |
| 07/21/2011 | DE102010005116A1 Rückschlagventil für eine Verbrennungskraftmaschine und Verfahren zur Herstellung eines derartigen Rückschlagventils Check valve for an internal combustion engine and method for producing such a non-return valve |
| 07/20/2011 | EP2344398A1 Port closure system with hydraulic hammer resistance |
| 07/20/2011 | CN201903204U Heat preservation and ventilation joint for water tank of solar water heater |
| 07/20/2011 | CN201902651U Water supply and drainage valve |
| 07/20/2011 | CN201902617U Check valve |
| 07/20/2011 | CN201902616U One-way valve |
| 07/20/2011 | CN201902615U Butterfly inclined and sealed multifunctional water-controlled one-way valve |
| 07/20/2011 | CN201902614U Duck mouth valve structure of hose |
| 07/20/2011 | CN201902612U Multifunctional novel valve |
| 07/20/2011 | CN102132076A Electro-hydraulic valve with lifting ball for variable compression ratio engine hydraulic unit |
| 07/20/2011 | CN102132021A Ball-screw lift device for variable compression-ratio engine |
| 07/20/2011 | CN102128289A Nonreturn device for injecting oil |
| 07/20/2011 | CN101798833B Three-in-one backflow preventer |
| 07/20/2011 | CN101699110B Differential pressure integrated microflow metering compensation valve |
| 07/19/2011 | US7980266 Soffit vent |
| 07/14/2011 | WO2011061270A3 Improvements in and relating to hygienic bedding including microbial detection valves and infection control cushioning and/or bedding devices comprising said microbial detection valves |
| 07/14/2011 | US20110168314 Valve, tire, rim and wheel |
| 07/14/2011 | US20110167564 Inflatable device with recessed fluid controller and modified adjustment device |
| 07/14/2011 | DE112009001971T5 Rückschlagventil mit separater kugelförmiger Federführung Check valve with separate spherical leadership |
| 07/14/2011 | DE102009047075A1 Rückschlagventil für Transport- und Lagerbehälter für Flüssigkeiten Check valve for transport and storage containers for liquids |
| 07/13/2011 | CN201896982U Nylon check valve |
| 07/13/2011 | CN201896976U Gas charging valve |
| 07/13/2011 | CN201896975U Check valve and steam generating device |
| 07/13/2011 | CN201896974U Anti-sticking full-sealing lampblack-discharging check valve |
| 07/13/2011 | CN201896973U Check valve for public flue |
| 07/13/2011 | CN201896972U One-way valve |
| 07/13/2011 | CN201894793U Drip-proof check valve used in water mist fire extinguishing system |
| 07/13/2011 | CN102124205A Check valve with separate spherical spring guide |
| 07/13/2011 | CN102120069A Methane desulfurizer capable of preventing tempering and dry combustion |
| 07/12/2011 | US7975722 One way valve that uses fluid pressure to open and close the valve |
| 07/12/2011 | US7975717 Pin insert |
| 07/12/2011 | US7975715 Trailer spring brake valve |
| 07/07/2011 | WO2011079537A1 Water hammer proof and silent check valve |
| 07/07/2011 | WO2011079536A1 Impeller type water-hammer proof and silent check valve |
| 07/07/2011 | US20110162732 anti-siphon check valve |
| 07/07/2011 | US20110162725 Valve for an inflatable device |
| 07/07/2011 | DE102009055413A1 Fluid assembly for use in anti-blocking system, traction control system, electronic stability program or brake assistant system to modulate brake pressure in connected wheel brakes of vehicle, has fluid block, in which cavity is arranged |
| 07/06/2011 | CN201892210U Ignition furnace burner capable of preventing pipeline tempering |
| 07/06/2011 | CN201892025U Unidirectional drainage respirator for relatively closed container |
| 07/06/2011 | CN201891880U Coaxial two-stage non-return valve clack lift differencing device |
| 07/06/2011 | CN201891879U Straight-through tilting-disc check valve |
| 07/06/2011 | CN201891786U Buffering structure with gas inflating and releasing nozzle |
| 07/06/2011 | CN201891144U Combined multifunctional pump control energy saving valve |
| 07/06/2011 | CN201891119U Grouting device with functions of air exhaust and grout backflow prevention |
| 07/06/2011 | CN102116384A Check valve of fully closed heater |
| 07/06/2011 | CN101718361B Constant-pressure check valve |
| 07/05/2011 | CA2517666C Angled dual check valve |
| 06/30/2011 | US20110155260 Rotatable dual head inflation device |
| 06/30/2011 | DE202011004850U1 Schlauchförmiges Rückschlagventil A tubular check valve |
| 06/30/2011 | DE102010050268A1 Kugelrückschlagventil-Anordnung mit Sperrkugelführung Ball check valve assembly with locking ball bearing guide |
| 06/30/2011 | DE102009057327A1 Check valve for internal combustion engine for conveying fluid, particularly liquid such as oil, and for use in fluid cycle, for e.g. hydraulic oil cycle, has housing, in which insert is connected with movable positioning element |
| 06/30/2011 | DE102006034184B4 Druckgesteuerter Kupplungsspitzendrehmomentbegrenzer Pressure controlled Kupplungsspitzendrehmomentbegrenzer |
| 06/29/2011 | EP1949393B1 Transformer conservator isolation valve (tciv) |
| 06/29/2011 | CN201884823U Throttle pipe joint |
| 06/29/2011 | CN201884727U Multifunctional controllable one-way vent valve |
| 06/29/2011 | CN201884726U Non-return core |
| 06/29/2011 | CN201884725U Sealing structure of one-way valve |
| 06/29/2011 | CN201884724U Structure of one-way valve |
| 06/29/2011 | CN201884723U Retaining valve, directional communicating piece and mouse and cockroach trap adopting two |
| 06/29/2011 | CN102109052A Check valve and filter |
| 06/29/2011 | CN102109051A One-way fluid permeation door and application thereof |
| 06/29/2011 | CN102109050A One-way valve device with throttling function |
| 06/28/2011 | US7967027 Simple diverter valve for a roman tub with replaceable cartridge including at least two checks |
| 06/23/2011 | US20110147016 Fluid Selective Check Valve |
| 06/23/2011 | US20110146815 Fluid valve arrangement |
| 06/23/2011 | US20110146805 Flow control device and flow control method |
| 06/22/2011 | EP2335773A1 Stacked membrane for pressure actuated valve |
| 06/22/2011 | DE102010061094A1 Valve body for opening and closing nonreturn valve of oscillating piston pump that is utilized in beverage dispenser, has opening provided between symmetrically arranged stabilizers, and cylindrical body inserted into spring of valve |
| 06/22/2011 | DE102009060588B3 Device for discharge of condensate water from water collecting tank of e.g. ventilation system in rail vehicle, has sleeve closure body vertically movable over bolt within sleeve, where bolt is arranged at cover |
| 06/22/2011 | CN201875262U Electromagnetic pressure protection water discharge valve |
| 06/22/2011 | CN201875235U Single-valve-plate double-action non-return fire-resistant valve |
| 06/22/2011 | CN201875216U Special self-cleaned check valve for steam drive |
| 06/22/2011 | CN201875215U One-way valve |
| 06/22/2011 | CN201875214U Check valve of range hood |
| 06/22/2011 | CN201875213U Novel heating control stop valve without leakage |
| 06/22/2011 | CN201875212U Welding type check valve with angle being rotated at random |
| 06/22/2011 | CN201875173U Concealed type combined valve |
| 06/22/2011 | CN201875168U Multifunctional anti-theft valve |
| 06/22/2011 | CN102105727A Method for safely preventing backflowing in the conveying of a fluid |