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Class Information
Number: 137/454.2
Name: Fluid handling > Removable valve head and seat unit
Description: Devices comprising one or more valve heads and their cooperating seats, with or without actuating means, formed in a sleeve, bonnet or similar structural unit which is removable as such from a valve body or housing.










Sub-classes under this class:

Class Number Class Name Patents
137/454.4 Pump type 61
137/454.6 Retained by bonnet or closure 273
137/454.5 Threaded into valve casing 182


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8662101 Device for inserting a shut-off device in a pipeline Mar. 4, 2014
8567447 Multipartite mechanical press for flanged connections with wedge-actuated movement mechanism Oct. 29, 2013
8491720 HVPE precursor source hardware Jul. 23, 2013
8408244 Sanitary installation part Apr. 2, 2013
8402995 Flow-volume regulator Mar. 26, 2013
8371332 Modular pressure balancing valve Feb. 12, 2013
8371335 Solenoid valve assembly Feb. 12, 2013
8336580 Cartridge Dec. 25, 2012
8297305 Valve assembly having an improved flow path Oct. 30, 2012
8281802 Valve for anti-lock brake system Oct. 9, 2012
8240522 Dual function dispensing head for carbonated beverage machine Aug. 14, 2012
8047224 Cartridge insert valve Nov. 1, 2011
7984727 Valve for control of high pressure air pressure air pulse Jul. 26, 2011
7814931 Selectively actuated constant flow valve Oct. 19, 2010
7806136 Wafer-type direct-acting valve Oct. 5, 2010
7730735 Refrigerant service port valve for air conditioners Jun. 8, 2010
7654283 Check valve and pump including check valve Feb. 2, 2010
7647940 Device and method for pneumatic valve control Jan. 19, 2010
7631656 Pressure control valve Dec. 15, 2009
7568496 Dual flange tee Aug. 4, 2009
7464722 Fluid proportioning valve Dec. 16, 2008
7438083 Pressure regulator filter assembly Oct. 21, 2008
7395836 Screwable check valve Jul. 8, 2008
7387135 Valve assembly having rigid seating surfaces Jun. 17, 2008
7331359 Valve with bi-loading seal Feb. 19, 2008
7306030 Snap-in baffle insert for fluid devices Dec. 11, 2007
7290560 Valve cover locking system Nov. 6, 2007
7264015 Non-return valve for a petrochemical reactor Sep. 4, 2007
7191795 Venting valve having a cover cap Mar. 20, 2007
7140383 Intake system Nov. 28, 2006
7114515 In-line valve cartridge Oct. 3, 2006
7108008 Reversing valve assembly with improved pilot valve mounting structure Sep. 19, 2006
7104273 Torque converter clutch regulator valve assembly and method of installation Sep. 12, 2006
7066200 Insert for dynamic flow control Jun. 27, 2006
7063048 Arrangement for integration of a double thermostat in an engine Jun. 20, 2006
7021331 Check valve with locked restraint mechanism Apr. 4, 2006
7013920 Valve, especially proportional solenoid valve Mar. 21, 2006
7013926 Plumbing leak testing apparatus Mar. 21, 2006
6991000 Manifold having integrated pressure relief valve Jan. 31, 2006
6990996 Torque converter clutch regulator valve assembly and method of installation Jan. 31, 2006
6929023 Back flow prevention device for pipelines conveying fluids Aug. 16, 2005
6923206 Excess flow valve with magnet Aug. 2, 2005
6886590 Seal assembly for fuel pressure regulator May. 3, 2005
6866060 Valve means Mar. 15, 2005
6854480 Regulated gas supply system Feb. 15, 2005
6848467 Non-metallic, snap-together subsasembly of internal double check valve Feb. 1, 2005
6837269 Electrohydraulic control device Jan. 4, 2005
6799952 Pneumatically operated compressor capacity control valve with discharge pressure sensor Oct. 5, 2004
6793601 1-2 shift valve assembly Sep. 21, 2004
6733472 Sealant applicator tip and application method May. 11, 2004

1 2 3 4 5 6










 
 
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