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Class Information
Number: 251/148
Name: Valves and valve actuation > With correlated flow path > Pipe coupling or union
Description: Subject matter wherein the flow path includes a pipe coupling or union.










Sub-classes under this class:

Class Number Class Name Patents
251/150 Flexible or expansible 20
251/151 Non-rotatable conduit coupling 46
251/152 Valve seat and coupling element removable as a unit 71


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8656942 Length-adjustable pressure-retaining piping components Feb. 25, 2014
8528877 Latching gas on/off assembly Sep. 10, 2013
8511714 Connector assemblies for flow restricting apparatuses Aug. 20, 2013
8511639 Adaptor for use with a valve fitment Aug. 20, 2013
8469162 Shock absorber Jun. 25, 2013
8468849 Double metal seal fitting Jun. 25, 2013
8464689 Throttle body to intake manifold mounting Jun. 18, 2013
8448448 Cooling air bleed device in a turbomachine May. 28, 2013
8418994 Hot-cold inlet pipe structure Apr. 16, 2013
8413681 Swivel adapter for an irrigation valve Apr. 9, 2013
8408009 Cooling air bleed device in a turbine engine Apr. 2, 2013
8403295 Electromagnetic water supply valve Mar. 26, 2013
8398052 Subsea hydraulic coupler Mar. 19, 2013
8397513 Device for tapping cooling air in a turbomachine Mar. 19, 2013
8387949 Coaxial coupling with by-pass valve and coupling mechanism with bayonette form Mar. 5, 2013
8365769 Ball valve Feb. 5, 2013
8297587 Multifunctional shut-off device Oct. 30, 2012
8256459 Fluid conduit connector apparatus Sep. 4, 2012
8186648 Method of shutting off conduit and pipe conduit shutoff apparatus May. 29, 2012
8113485 Leak-proof structure of oil pipe connector Feb. 14, 2012
8096524 Seal retainer/line centering clips with multiple flange capability Jan. 17, 2012
8096320 Compact beverage pressure regulator Jan. 17, 2012
8091864 Valve for a fluid flow connector having an overmolded plunger Jan. 10, 2012
8074959 Load line apparatus Dec. 13, 2011
8074963 Fluid shut-off device Dec. 13, 2011
7819382 Temperature and pressure responsive seal Oct. 26, 2010
7815167 Valve for adjusting the air flow rate in an internal combustion engine Oct. 19, 2010
7810519 Fluid conduit connector apparatus Oct. 12, 2010
7798120 Variable air intake device for internal combustion engine Sep. 21, 2010
7712725 Drain valve assembly May. 11, 2010
7703745 Seal retainer/longitudinal centering clips with multiple flange capability Apr. 27, 2010
7694937 Outflow valve Apr. 13, 2010
7614605 Universal connector for a pneumatic tool with unlocking by air flow Nov. 10, 2009
7604217 Electrolysis-resistant coupling assembly for valves Oct. 20, 2009
7490620 Fluid conduit connector apparatus Feb. 17, 2009
7469880 Quick connect feature for a fluid connection Dec. 30, 2008
7448593 Butterfly valve having flanges forming a positive lock Nov. 11, 2008
7398954 Remote-coupled faucet adapter Jul. 15, 2008
7353840 Split nut for outlet box installation Apr. 8, 2008
7338030 Quick stop supply valve Mar. 4, 2008
7320484 Plug-in safety coupling Jan. 22, 2008
7255131 Valve for a fire hose line Aug. 14, 2007
7182108 Automatic bleed valve for pressurized system Feb. 27, 2007
7182094 Air nozzle for inflating cushion Feb. 27, 2007
7163189 Tapping valve of plastics material for transport and storage containers for liquids Jan. 16, 2007
7147206 Quick connect coupling including male and female elements Dec. 12, 2006
7114703 Valve Oct. 3, 2006
7044149 Pipe fitting May. 16, 2006
7028983 Coupling member of a pipe coupling and valve body used in a coupling member Apr. 18, 2006
6948698 Valve for pressurized canister Sep. 27, 2005

1 2 3 4 5 6










 
 
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