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Class Information
Number: 92/169.2
Name: Expansible chamber devices > Cylinder detail > With reinforcing member
Description: Apparatus including structure specifically provided for (a) increasing the rigidity of the cylinder, or (b) strengthening the cylinder, or (c) bypassing the effect of pressure deformation on the cylinder to a cylinder mounting structure.










Sub-classes under this class:

Class Number Class Name Patents
92/169.3 Extending through working member 44


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8443714 Vibration/shock resistant stud housing May. 21, 2013
8434399 Oilfield equipment composed of a base material reinforced with a composite material May. 7, 2013
8402881 Insert casting structure Mar. 26, 2013
8359967 Fluid end reinforced with a composite material Jan. 29, 2013
8166866 Pneumatic brake booster May. 1, 2012
8167588 Compressor system and frame May. 1, 2012
8083505 Wear rings for downhole pump Dec. 27, 2011
8042452 Lifting ram for lifting platforms Oct. 25, 2011
7975601 Engine cylinder liner Jul. 12, 2011
7966993 Fuel injection pump having a barrel expansion control sleeve Jun. 28, 2011
7743894 Brake actuator reinforcement and method of attaching same Jun. 29, 2010
7614340 Composite piston housing for aircraft brakes Nov. 10, 2009
7487710 High-pressure generation apparatus Feb. 10, 2009
7395750 Pressure vessel, compressor and process for casting cylinder block Jul. 8, 2008
7318370 Tie rod for booster and booster comprising such a tie rod Jan. 15, 2008
7306078 Composite brake cylinder Dec. 11, 2007
7234387 Face wall for a motor vehicle Jun. 26, 2007
7185581 Composite fluid actuated cylinder Mar. 6, 2007
7040217 Tie rod for a brake booster May. 9, 2006
6817178 Master cylinder body and die for molding master cylinder body Nov. 16, 2004
6755117 Tandem vacuum booster assembly including sleeve for air transfer between high pressure chambers Jun. 29, 2004
6651548 Pneumatic brake booster Nov. 25, 2003
6491882 High-pressure device Dec. 10, 2002
6415706 Actuator Jul. 9, 2002
6301886 Hydraulic pressure generating apparatus for vehicle Oct. 16, 2001
5899136 Low leakage plunger and barrel assembly for high pressure fluid system May. 4, 1999
5802951 Brake booster Sep. 8, 1998
5782613 Piston type compressor with structure for reducing cylinder bore deformation Jul. 21, 1998
5765465 High pressure press and method for high pressure treatment of substances Jun. 16, 1998
5567130 Reinforced cover configuration for a diaphragm pump Oct. 22, 1996
5450781 Booster Sep. 19, 1995
5415079 Composite cylinder for use in aircraft hydraulic actuator May. 16, 1995
5335587 Housing for a drive cylinder Aug. 9, 1994
5163820 Airless sprayer with adjustable pressure unloading valve Nov. 17, 1992
5149257 Compressor with a cylinder having improved seizure resistance and improved wear resistance, and method of manufacturing the cylinder Sep. 22, 1992
5088386 Pneumatic brake booster Feb. 18, 1992
5063830 Brake booster Nov. 12, 1991
4972763 Impact absorbing shield for industrial cylinder and method of using same Nov. 27, 1990
4970944 Rotary actuator Nov. 20, 1990
4955284 Piston having ceramic parts Sep. 11, 1990
4915202 Concentrically mounted hydraulic clutch actuator Apr. 10, 1990
4909130 Cylinder end cap Mar. 20, 1990
4827835 Cylinder end cap May. 9, 1989
4823553 Plastic master cylinder with flange-supporting arms Apr. 25, 1989
4822261 Low head, high volume pump apparatus Apr. 18, 1989
4817503 Diaphragm pump with pressure chamber having a ribbed wall Apr. 4, 1989
4798129 Cam and lock vacuum booster mount with inverse arc securing tab arm Jan. 17, 1989
4785628 Master cylinder and vacuum brake booster Nov. 22, 1988
4783964 Pneumatic brake booster with load reaction carrying members Nov. 15, 1988
4655119 Low-pressure casing for a brake booster Apr. 7, 1987

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