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Class Information
Number: 251/308
Name: Valves and valve actuation > Rotary valves > Butterfly > Head and stem connections
Description: Devices providing the means for attaching the valve stem, or pivot, to the valve head.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8459609 Butterfly valve assembly incorporating a unitary shaft and butterfly plate valve element Jun. 11, 2013
8459895 Power transmission device and assembling method thereof Jun. 11, 2013
8430079 Throttle valve Apr. 30, 2013
8356796 Unitary shaft extender apparatus Jan. 22, 2013
8291885 Valve having a sleeve to prevent contamination and condensation Oct. 23, 2012
8172202 Butterfly valve assembly including a bearing assembly for serrated spline constraint May. 8, 2012
8136793 Valve arrangement Mar. 20, 2012
8052118 Passage control device Nov. 8, 2011
7789372 Butterfly valve of a swirl system for an internal combustion engine Sep. 7, 2010
7775505 Butterfly valve having improved sealing between a shaft seal part and a valve disc Aug. 17, 2010
7758018 Flap valve for closing and opening a channel Jul. 20, 2010
7740228 Valve assembly including a torsion spring coupling a valve shaft and actuator shaft Jun. 22, 2010
7611123 Throttle device Nov. 3, 2009
7574797 Throttle body and method of assembly Aug. 18, 2009
7540278 Fluid control valve Jun. 2, 2009
7510167 Isolation damper and method of forming airtight seal Mar. 31, 2009
7506858 Tube-end butterfly metering and shutoff valve Mar. 24, 2009
7503544 Flap valve for a motor vehicle exhaust system Mar. 17, 2009
7469677 Throttle valve device Dec. 30, 2008
7387291 Collapsible shaft and control assembly Jun. 17, 2008
7353801 Valve regulating device and intake manifold comprising at least one such device Apr. 8, 2008
7334628 Flow control device for gas stream Feb. 26, 2008
7266891 Method for sealing a throttle valve housing Sep. 11, 2007
7264221 Butterfly valve assembly with improved flow characteristics Sep. 4, 2007
7219652 Bearing support device May. 22, 2007
7080628 Intake control device for internal combustion engine Jul. 25, 2006
7063303 Throttle apparatus having axial displacement restricting structure Jun. 20, 2006
7032885 Throttle body and method of assembly Apr. 25, 2006
7032884 Outflow valve butterfly plate retention pin Apr. 25, 2006
6997240 Flap for an air-guide duct Feb. 14, 2006
6945513 Throttle valve arrangement Sep. 20, 2005
6918401 Throttle shaft assembly and method of attachment Jul. 19, 2005
6886800 Production method for the rotor component of a position sensor of a butterfly valve for an internal combustion engine May. 3, 2005
6874466 Intake valve device Apr. 5, 2005
6854180 Method of providing shaft biasing lubrication for a short runner valve shaft Feb. 15, 2005
6837261 Control valve assembly of valve assembly-injection-molded control valves or modules Jan. 4, 2005
6698717 Modified butterfly valve and assembly Mar. 2, 2004
6622986 Regulator valve with spacing chamber Sep. 23, 2003
6612325 Control valve assembly of valve assembly-injection-molded control valves or modules Sep. 2, 2003
6604516 Flap valve Aug. 12, 2003
6595488 Butterfly valve Jul. 22, 2003
6589380 Laser welded air control valve and method Jul. 8, 2003
6543413 Short runner valve plate and shaft biasing lubrication Apr. 8, 2003
6497245 Intake air controller for internal combustion engine and manufacturing the same Dec. 24, 2002
6446934 Fluid control valve with butterfly-type flow control element with high operating reliability Sep. 10, 2002
6431142 Throttle blade having snap-fit wedge Aug. 13, 2002
6419206 Door attachment structure Jul. 16, 2002
6354567 Throttle shaft and butterfly construction Mar. 12, 2002
6354267 Injection molded throttle body Mar. 12, 2002
6286810 Valve with cartridge Sep. 11, 2001

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