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Class Information
Number: 251/205
Name: Valves and valve actuation > With selective flow regulation
Description: Devices which include flow controllers provided with means for micro-adjustment of the flow selectively between minimum and maximum extremes.










Sub-classes under this class:

Class Number Class Name Patents
251/206 Different sized bores in valve head 85
251/208 Rotary 245


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8678005 Adjustable tracheostomy valve Mar. 25, 2014
8613607 Pressure pulsation dampener Dec. 24, 2013
8479758 Methods and devices for reducing water consumption Jul. 9, 2013
8449289 Multi-gas appliance May. 28, 2013
8443838 Refrigerant control valves May. 21, 2013
8398054 Device for throttling the free cross-section of a steam pipe Mar. 19, 2013
8356617 Poppet valve with dual flow area gain Jan. 22, 2013
8322369 Damping valve for a hydraulic shock absorber Dec. 4, 2012
8286939 Pulse width modulated fluidic valve Oct. 16, 2012
8241034 Fuel selection valve assemblies Aug. 14, 2012
8215519 Fluid dispensing valve Jul. 10, 2012
8173081 Stopper body May. 8, 2012
8141524 Cooling system having variable orifice plates Mar. 27, 2012
8128056 Flow control valve Mar. 6, 2012
8104281 Nested valve and method of control Jan. 31, 2012
8092212 Rotary valve arranged in multi-gas cooker Jan. 10, 2012
8011640 Air valve adjusting switch assembly Sep. 6, 2011
7967005 Dual fuel gas valve and gas grill Jun. 28, 2011
7963763 Multi-gas cooker, with a rotary valve provided with interchangeable regulating means Jun. 21, 2011
7905873 Port assembly for use with needleless connector Mar. 15, 2011
7735805 Water control valve Jun. 15, 2010
7726342 Variable output pressure backup valve Jun. 1, 2010
7651330 Rotary valve arranged in a multi-gas cooker Jan. 26, 2010
7641470 Multi-gas cooker, with a rotary valve provided with interchangeable regulating means Jan. 5, 2010
7628170 Flow control valve Dec. 8, 2009
7624749 Flow regulator for medical liquids and method for its fabrication Dec. 1, 2009
7624963 Valve flow adjustment device Dec. 1, 2009
7607639 Valve structure Oct. 27, 2009
7431264 Knife gate valve Oct. 7, 2008
7373948 Variable output pressure backup valve May. 20, 2008
7296761 Hand-held dispenser Nov. 20, 2007
7195229 Automatic sampler Mar. 27, 2007
7179373 Removing foreign matter from aquarium water Feb. 20, 2007
7118088 Fluid control valve Oct. 10, 2006
7063302 Sample valve with integral sample shut off function for chromatograph Jun. 20, 2006
7063107 Dual chamber orifice fitting body Jun. 20, 2006
6955664 Suction regulator and fluid drainage system Oct. 18, 2005
6948561 Indexing apparatus Sep. 27, 2005
6929468 Blowtorch Aug. 16, 2005
6926249 Precision modulating globe valve Aug. 9, 2005
6874752 Regulation insert with several adjustment possibilities Apr. 5, 2005
6869061 Valves, and seismic sources incorporating the valves Mar. 22, 2005
6857281 Expansion device for vapor compression system Feb. 22, 2005
6827327 Flow resistance setting nozzle Dec. 7, 2004
6824118 Micro-adjustment flow control valve Nov. 30, 2004
6796544 Valve mount for water saving core shaft of single handled faucet Sep. 28, 2004
6782692 Fuel metering unit with two integrated outlet ports Aug. 31, 2004
6726175 Gas valve Apr. 27, 2004
6726174 Control valve, especially for an internal combustion engine, for the controlled recycling of exhaust gases Apr. 27, 2004
6695006 Flow control providing stable fluid flow Feb. 24, 2004

1 2 3 4 5










 
 
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