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Class Information
Number: 29/890.122
Name: Metal working > Method of mechanical manufacture > Valve or choke making > Valve seat forming
Description: Process including the step of permanently deforming, shaping or making the annular or circular ring upon which the valve head rests when the valve is in a closed position.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8595933 Injection valve, method for its production, and apparatus for performing the method Dec. 3, 2013
8590815 Fuel injector tip with compressive residual stress Nov. 26, 2013
8555503 Casting-integrated control body processing Oct. 15, 2013
8479700 Iron-chromium alloy with improved compressive yield strength and method of making and use thereof Jul. 9, 2013
8402655 Method of processing orifice Mar. 26, 2013
8381400 Method of manufacturing a check valve Feb. 26, 2013
8375973 One-piece metal orifice tube and solenoid valve including a one-piece metal orifice tube Feb. 19, 2013
8307550 Injector seat that includes a coined seal band and method Nov. 13, 2012
8291927 Remanufactured machine component and valve body remanufacturing process Oct. 23, 2012
8261446 Injector seat that includes a coined seal band with radius Sep. 11, 2012
8256740 Connection mechanism for fluid pipings, manufacturing method for the same, and fuel cell system including connection mechanism for fluid pipings Sep. 4, 2012
7849600 Method of producing a valve arrangement for an expansion valve Dec. 14, 2010
7634856 Method of assembling gas flow control valve Dec. 22, 2009
7611125 Valve and method for producing a valve Nov. 3, 2009
7540470 Powdered metal inlay Jun. 2, 2009
7210494 Valve and method for producing a valve May. 1, 2007
7070166 Powdered metal inlay Jul. 4, 2006
7063272 Fuel injection nozzle and method of manufacture Jun. 20, 2006
6920690 Method of manufacturing a fuel injector seat Jul. 26, 2005
6761182 Method for configuration of a valve Jul. 13, 2004
6665926 Method and apparatus for improved valve seating of a fuel injector by coining and a valve made thereby Dec. 23, 2003
6564457 Machining method of valve seat with laser-clad metal May. 20, 2003
6564456 Method of finishing a valve seat for ball valves, in particular for fuel injection valves in internal combustion engines May. 20, 2003
6543136 Method for improved valve seating of a fuel injector by coining and a valve made thereby Apr. 8, 2003
6526656 Coating for a fuel injector seat Mar. 4, 2003
6460559 Valve having ceramic components and associated fabrication method Oct. 8, 2002
6394425 Carburetor with a rotary throttle valve May. 28, 2002
6305459 Method of making spray-formed articles using a polymeric mandrel Oct. 23, 2001
6270849 Method of manufacturing a metal and polymeric composite article Aug. 7, 2001
6257496 Fuel injector having an integrated seat and swirl generator Jul. 10, 2001
6240947 Solenoid valve seat and method of making same Jun. 5, 2001
6189816 Method for producing a valve-seat body for a fuel injection valve, and corresponding fuel injection valve Feb. 20, 2001
6178637 Method and apparatus for producing rotationally symmetrical valve seat faces of high surface quality in valves Jan. 30, 2001
6173914 Valve and method for producing a valve seat for a valve Jan. 16, 2001
6173494 Method of making a valve seat Jan. 16, 2001
6138351 Method of making a valve seat Oct. 31, 2000
6035532 Groove means in a fuel injector valve seat Mar. 14, 2000
5992016 Method of controlling the magnetic gap length and the initial stroke length of a pressure surge fuel pump Nov. 30, 1999
5983495 Method of making spray-formed inserts Nov. 16, 1999
5666632 Valve seat insert of two layers of same compact density Sep. 9, 1997
5661895 Method of controlling the magnetic gap length and the initial stroke length of a pressure surge fuel pump Sep. 2, 1997
5649360 Method of making a vent valve Jul. 22, 1997
5617632 Methods for forming a contoured regulator seat Apr. 8, 1997
5239751 Method of producing nozzle for solenoid valve Aug. 31, 1993
5139229 Ball valve and method of assembly Aug. 18, 1992
5136774 Method of making a valve with adjustable valve seat Aug. 11, 1992
5113908 Multistep trim design May. 19, 1992
4970484 Composite elastomer-tipped tubular metallic device for armature and needle valve applications Nov. 13, 1990
4856164 Method of making a valve construction Aug. 15, 1989
4794681 Fluid cylinder cushioning system Jan. 3, 1989

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