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Class Information
Number: 418/268
Name: Rotary expansible chamber devices > Positively actuated vane > Fluid biased
Description: Apparatus wherein the vane is urged into engagement with the cylinder wall surface by pressure fluid.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7670119 |
Multistage vacuum pump and a pumping installation including such a pump |
Mar. 2, 2010 |
| 7637724 |
Variable displacement vane pump with pressure balanced vane |
Dec. 29, 2009 |
| 7628594 |
Vane pump having a labyrinth seal and gap between a top surface of a rotor and a ceiling surface of a rotor chamber that is formed between upper and lower cases |
Dec. 8, 2009 |
| 7628596 |
Power steering pump |
Dec. 8, 2009 |
| 7621730 |
Surgical pneumatic motor |
Nov. 24, 2009 |
| 7607907 |
Roller vane pump |
Oct. 27, 2009 |
| 7597548 |
Dual arc vane pump |
Oct. 6, 2009 |
| 7566211 |
Vane pump having vanes with a cutout portion |
Jul. 28, 2009 |
| 7566212 |
Vane pump with blade base members |
Jul. 28, 2009 |
| 7563081 |
Gas compressor |
Jul. 21, 2009 |
| 7540729 |
Vane cell pump |
Jun. 2, 2009 |
| 7527486 |
Surgical pneumatic motor for use with MRI |
May. 5, 2009 |
| 7484944 |
Rotary vane pump seal |
Feb. 3, 2009 |
| 7425121 |
Rotary vane pump |
Sep. 16, 2008 |
| 7393192 |
Rotary vane pump |
Jul. 1, 2008 |
| 7390182 |
Rotor structure of pneumatic tool |
Jun. 24, 2008 |
| 7354260 |
Pneumatic motor including a rotor in a cylinder between two covers in a shell from which air travels into the cylinder through the covers |
Apr. 8, 2008 |
| 7347675 |
Vane rotary expansion engine |
Mar. 25, 2008 |
| 7343894 |
Modular rotary engine |
Mar. 18, 2008 |
| 7338267 |
Hinged paddle pump |
Mar. 4, 2008 |
| 7316551 |
Vane pump with integrated shaft, rotor and disc |
Jan. 8, 2008 |
| 7314359 |
Vane pump for continuously variable transmission |
Jan. 1, 2008 |
| 7255546 |
Spindle for a vane motor |
Aug. 14, 2007 |
| 7226281 |
Vane pump having vanes slanted relative to rotational axis |
Jun. 5, 2007 |
| 7175403 |
Integrated select high pressure valve |
Feb. 13, 2007 |
| 7150610 |
Gas compressor |
Dec. 19, 2006 |
| 7134855 |
Vane pump with integrated shaft, rotor and disc |
Nov. 14, 2006 |
| 7128544 |
Crescent seal for the cylinder of a vane motor |
Oct. 31, 2006 |
| 7118361 |
Rotary pistons |
Oct. 10, 2006 |
| 7114932 |
Valve-free oxygen concentrator featuring reversible compressors |
Oct. 3, 2006 |
| 7097437 |
Rotary fluid machine |
Aug. 29, 2006 |
| 7094044 |
Vane pump having a pressure compensating valve |
Aug. 22, 2006 |
| 7090476 |
Rotary fluid machine |
Aug. 15, 2006 |
| 7083394 |
Vane pump with undervane feed |
Aug. 1, 2006 |
| 7073477 |
Gorski rotary engine |
Jul. 11, 2006 |
| 7070399 |
Variable displacement pump with a suction area groove for pushing out rotor vanes |
Jul. 4, 2006 |
| 7070396 |
Oil pump apparatus having oil drain |
Jul. 4, 2006 |
| 6976832 |
Fluid rotary machine |
Dec. 20, 2005 |
| 6945218 |
Rotary pistons |
Sep. 20, 2005 |
| 6939117 |
Rotary apparatus |
Sep. 6, 2005 |
| 6935854 |
Gas compressor |
Aug. 30, 2005 |
| 6929457 |
Gas compressor |
Aug. 16, 2005 |
| 6910873 |
Self regulating rotor |
Jun. 28, 2005 |
| 6896502 |
Fluid cannon positive displacement pump |
May. 24, 2005 |
| 6884051 |
Rotary fluid machinery |
Apr. 26, 2005 |
| 6877969 |
Vane pump |
Apr. 12, 2005 |
| 6877968 |
Low head water turbine |
Apr. 12, 2005 |
| 6877966 |
Apparatus for indicating remaining life expectancy of a rotary sliding vane pump |
Apr. 12, 2005 |
| 6877340 |
Expander |
Apr. 12, 2005 |
| 6857863 |
Power steering pump |
Feb. 22, 2005 |
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