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Class Information
Number: 92/248
Name: Expansible chamber devices > Piston > Nonmetallic portion
Description: Apparatus in which the piston includes a portion made of nonmetallic material.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7455506 |
Injection moldable piston rings |
Nov. 25, 2008 |
| 7174829 |
Adjustable piston pump |
Feb. 13, 2007 |
| 7140291 |
Oil-free/oil-less air compressor with an improved seal |
Nov. 28, 2006 |
| 7059128 |
Hydraulic system for a motor vehicle |
Jun. 13, 2006 |
| 6931983 |
Device for circulating sealing gas for mechanical dry seals of a centrifugal compressor at times when the machine is stationary and pressurized |
Aug. 23, 2005 |
| 6928923 |
Piston with supporting connector elements for a piston-cylinder arrangement, in particular a shock absorber piston |
Aug. 16, 2005 |
| 6925925 |
Piston for a compressor |
Aug. 9, 2005 |
| 6817378 |
Fluid flow control damper assembly |
Nov. 16, 2004 |
| 6796217 |
Injector assembly capable of preventing subsequent dripping, as well as plunger and seal member for the injector assembly |
Sep. 28, 2004 |
| 6766710 |
Hydraulic control device for operating a sliding selector shaft |
Jul. 27, 2004 |
| 6739236 |
Piston for fluid machine and method of manufacturing the same |
May. 25, 2004 |
| 6595341 |
Aluminum-coated plastic member |
Jul. 22, 2003 |
| 6568313 |
Fluid pressure cylinder apparatus |
May. 27, 2003 |
| 6490964 |
Master brake cylinders having overmolded seals |
Dec. 10, 2002 |
| 6450084 |
Piston with piston ring |
Sep. 17, 2002 |
| 6443048 |
Piston for a cylinder and a method for its manufacture |
Sep. 3, 2002 |
| 6443049 |
Hydraulic piston |
Sep. 3, 2002 |
| 6422130 |
Piston and hydraulic control device for the clutch of an automobile provided with one such piston |
Jul. 23, 2002 |
| 6415705 |
Swash plate type compressor piston whose end section is formed of a material different from that of swash-plate engaging portion |
Jul. 9, 2002 |
| 6415706 |
Actuator |
Jul. 9, 2002 |
| 6408735 |
Actuator |
Jun. 25, 2002 |
| 6401596 |
Metallic cap for molded plastic disc brake pistons |
Jun. 11, 2002 |
| 6382367 |
Actuating piston for a hydraulically and mechanically actuable, spot type disc brake |
May. 7, 2002 |
| 6371257 |
Piston assembly for use in a wheel cylinder of a drum brake assembly |
Apr. 16, 2002 |
| 6357340 |
Piston compressor piston |
Mar. 19, 2002 |
| 6339984 |
Piston for fluid machines |
Jan. 22, 2002 |
| 6327964 |
Reciprocating pump |
Dec. 11, 2001 |
| 6305266 |
Piston or plunger and a method for making the same |
Oct. 23, 2001 |
| 6293764 |
Reciprocating compressor with dry lubricating system |
Sep. 25, 2001 |
| 6289790 |
Clutch hydraulic control device, in particular for motor car |
Sep. 18, 2001 |
| 6260471 |
Fuel feed pump |
Jul. 17, 2001 |
| 6250206 |
Hydraulic piston filling |
Jun. 26, 2001 |
| 6216585 |
Carbon-carbon engine components and method of fabrication |
Apr. 17, 2001 |
| 6146727 |
Composite phenolic brake piston with improved heat resistance |
Nov. 14, 2000 |
| 6079961 |
Piston pump for a vehicle brake system having a plastic piston with a wear resistant cam-striking face |
Jun. 27, 2000 |
| 5988044 |
Piston having insulated cap |
Nov. 23, 1999 |
| 5947001 |
Molded piston |
Sep. 7, 1999 |
| 5947003 |
Hydraulic piston machine with friction-reducing layer on the cylinder and the cylinder bearing |
Sep. 7, 1999 |
| 5890413 |
Piston for water pump and related method |
Apr. 6, 1999 |
| 5878858 |
Rotational control apparatus with selective fluid actuation supply |
Mar. 9, 1999 |
| RE35997 |
Self cleaning reciprocating and/or rotating device |
Dec. 22, 1998 |
| 5836235 |
Piston for hydraulic actuating cylinders |
Nov. 17, 1998 |
| 5826686 |
Piston with moisture-protective outer cover for use in disc brake assembly |
Oct. 27, 1998 |
| 5802955 |
Corrosion resistant cermet wear parts |
Sep. 8, 1998 |
| 5794513 |
Pressure-applying arrangement in a hydraulic axial piston machine |
Aug. 18, 1998 |
| 5784951 |
Piston with a slide shoe and method of manufacturing same |
Jul. 28, 1998 |
| 5758566 |
Piston with a slide shoe for a hydraulic piston engine |
Jun. 2, 1998 |
| 5713728 |
Electromagnetic pump with plastic covered piston |
Feb. 3, 1998 |
| 5660532 |
Multiphase piston-type pumping system and applications of this system |
Aug. 26, 1997 |
| 5632607 |
Piston and valve arrangement for a wobble plate type pump |
May. 27, 1997 |
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