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Class Information
Number: 418/142
Name: Rotary expansible chamber devices > With mechanical sealing > Seal element between working member and cylinder > On working member
Description: Apparatus wherein the means opposing the passage of fluid is mounted or positioned on the working member.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7364418 |
Scroll fluid machine having an adjustment member with a deformable element |
Apr. 29, 2008 |
| 7347678 |
Friction reducing seal ring for gear pump |
Mar. 25, 2008 |
| 7326039 |
Apparatus for varying capacity of scroll compressor |
Feb. 5, 2008 |
| 7303380 |
Rotary engine with improved seal assembly |
Dec. 4, 2007 |
| 7293969 |
Tip seal in a scroll fluid machine |
Nov. 13, 2007 |
| 7275919 |
Rotary engine seal assembly |
Oct. 2, 2007 |
| 7238011 |
Scroll compressor |
Jul. 3, 2007 |
| 7234924 |
Rotary combustion engine with device for conveying lubricating oil |
Jun. 26, 2007 |
| 7234923 |
Scroll fluid machine having a dust seal fitted within annular groove and having ends overlapped in the wider portion of the annular groove |
Jun. 26, 2007 |
| 7195469 |
Dust seal in a scroll fluid machine |
Mar. 27, 2007 |
| 7134852 |
Seal member for vortex compressor |
Nov. 14, 2006 |
| 7086844 |
Multi-stage scroll fluid machine having a set a seal elements between compression sections |
Aug. 8, 2006 |
| 7008201 |
Gapless screw rotor device |
Mar. 7, 2006 |
| 7001162 |
Compressor assembly |
Feb. 21, 2006 |
| 6783339 |
Hydraulic motor with a separate spool valve |
Aug. 31, 2004 |
| 6695597 |
Scroll fluid machine |
Feb. 24, 2004 |
| 6619938 |
Flexible vane pump |
Sep. 16, 2003 |
| 6485279 |
Thrust load reliever |
Nov. 26, 2002 |
| 6474061 |
Water pressure driven generator |
Nov. 5, 2002 |
| 6422846 |
Low pressure unloader mechanism |
Jul. 23, 2002 |
| 6241497 |
Cooling system for a rotary vane pumping machine |
Jun. 5, 2001 |
| 6183231 |
Clean-in-place gear pump |
Feb. 6, 2001 |
| 6142755 |
Scroll compressor and method of manufacturing same |
Nov. 7, 2000 |
| 6123529 |
Scroll compressor |
Sep. 26, 2000 |
| 6099279 |
Displacement fluid machine |
Aug. 8, 2000 |
| 6074185 |
Scroll compressor with improved tip seal |
Jun. 13, 2000 |
| 6071106 |
Hydraulic vane machine |
Jun. 6, 2000 |
| 6071102 |
Floating seal for sealed star gerotor |
Jun. 6, 2000 |
| 6068459 |
Tip seal for scroll-type vacuum pump |
May. 30, 2000 |
| 6059550 |
Twin-cylinder impeller pump |
May. 9, 2000 |
| 6033194 |
Scroll-type fluid displacement apparatus with anti-wear plate mechanism |
Mar. 7, 2000 |
| 5823756 |
Scroll fluid discharging apparatus |
Oct. 20, 1998 |
| 5759020 |
Scroll compressor having tip seals and idler crank assemblies |
Jun. 2, 1998 |
| 5702241 |
Scroll-type fluid displacement apparatus having sealing means for central portions of the wraps |
Dec. 30, 1997 |
| 5632612 |
Scroll compressor having a tip seal |
May. 27, 1997 |
| 5584678 |
Scroll type fluid machine having tip seals of different carbon fiber composition rates |
Dec. 17, 1996 |
| 5580228 |
Scroll compressor having grooves for seal members |
Dec. 3, 1996 |
| 5562434 |
Scroll compressor having optimized tip seal grooves |
Oct. 8, 1996 |
| 5538409 |
Trochoidal piston side seal |
Jul. 23, 1996 |
| 5538409 |
Trochoidal piston side seal |
Jul. 23, 1996 |
| 5520526 |
Scroll compressor with axially biased scroll |
May. 28, 1996 |
| 5427513 |
Scroll type compressor having a displaced discharge port |
Jun. 27, 1995 |
| 5421707 |
Scroll type machine with improved wrap radially outer tip |
Jun. 6, 1995 |
| 5397224 |
Elongated roller side seals for a rotary engine |
Mar. 14, 1995 |
| 5364247 |
Sealing structure for scroll type compressor |
Nov. 15, 1994 |
| 5362217 |
Helical positive-displacement machine having a meandering sealing strip groove |
Nov. 8, 1994 |
| 5322428 |
Gear transfer pump with lubrication and sealing of the driveshaft and idler pin |
Jun. 21, 1994 |
| 5295814 |
Trochoidal rotary piston machine with piston follow-up mechanism |
Mar. 22, 1994 |
| 5258046 |
Scroll-type fluid machinery with seals for the discharge port and wraps |
Nov. 2, 1993 |
| 5217358 |
Scroll type compressor with elongated discharging part |
Jun. 8, 1993 |
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