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Class Information
Number: 277/369
Name: Seal for a joint or juncture > Seal between relatively movable parts (i.e., dynamic seal) > Relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.) > Multiple sealing faces (e.g., double seals, etc.) > Housing mounted sealing face members biased axially towards each other
Description: Multiple sealing faces wherein the surface members are on the one relatively movable part (e.g., housing, casing, etc.) that encloses the other relatively movable part (e.g., shaft, etc.) and forced along the rotational axis formed between the relatively movable parts in an inwardly direction.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7516535 |
System and method for securing a rotor to a motor drive shaft using a pressure clamp |
Apr. 14, 2009 |
| 7343968 |
Washpipe seal assembly |
Mar. 18, 2008 |
| 7189054 |
Self-compensating clearance seal for centrifugal pumps |
Mar. 13, 2007 |
| 7144015 |
Modular gas seals cartridge |
Dec. 5, 2006 |
| 6739829 |
Self-compensating clearance seal for centrifugal pumps |
May. 25, 2004 |
| 6695315 |
Single seal |
Feb. 24, 2004 |
| 6688602 |
Shaft sealing mechanism of compressor with mechanical seal |
Feb. 10, 2004 |
| 6655693 |
Non-contacting gas compressor seal |
Dec. 2, 2003 |
| 6568687 |
Mechanical face seal |
May. 27, 2003 |
| 6568685 |
Dynamic rotating seal assembly |
May. 27, 2003 |
| 6446976 |
Hydrodynamic face seal with grooved sealing dam for zero-leakage |
Sep. 10, 2002 |
| 6398223 |
Mechanical face seal |
Jun. 4, 2002 |
| 6182971 |
Gas seal for pumps |
Feb. 6, 2001 |
| 6109617 |
Gas seal assembly and method of sealing |
Aug. 29, 2000 |
| 5947480 |
Sealing unit for rotating shaft |
Sep. 7, 1999 |
| 5941531 |
Double gas seal having an improved bellows arrangement |
Aug. 24, 1999 |
| 5924697 |
Double gas seal with bellows supported by backing and support rings |
Jul. 20, 1999 |
| 5901965 |
Bellows seal having balanced, de-coupled seal ring and seal ring shell |
May. 11, 1999 |
| 5490679 |
Seal ring design |
Feb. 13, 1996 |
| 5412977 |
Turbo machine with an axial dry gas seal |
May. 9, 1995 |
| 5368311 |
Shaft seal assembly for a rotary valve |
Nov. 29, 1994 |
| 5341198 |
Apparatus for sealing a metering roll |
Aug. 23, 1994 |
| 5251913 |
Track roller for tracked vehicles |
Oct. 12, 1993 |
| 5158431 |
Shaft seal assembly, especially for high-pressure turbocompressors |
Oct. 27, 1992 |
| 5149249 |
Shaft seal assembly, especially for high-pressure turbocompressors |
Sep. 22, 1992 |
| 5106105 |
Rotary kiln seal |
Apr. 21, 1992 |
| 5096396 |
Rotary apparatus having passageways to clean seal chambers |
Mar. 17, 1992 |
| 5074568 |
Shaft seal |
Dec. 24, 1991 |
| 5069571 |
Rod end assembly |
Dec. 3, 1991 |
| 5018749 |
Slide ring seal |
May. 28, 1991 |
| 4934656 |
High-pressure ball valve |
Jun. 19, 1990 |
| 4923377 |
Self-machining seal ring leakage prevention assembly for rotary vane device |
May. 8, 1990 |
| 4854749 |
Bearing sealing device |
Aug. 8, 1989 |
| 4813689 |
Dual face seal with radially projecting annular disc |
Mar. 21, 1989 |
| 4809992 |
Rotary shaft seal assembly |
Mar. 7, 1989 |
| 4809960 |
Bushing assembly |
Mar. 7, 1989 |
| 4764086 |
Blower for circulating larger gas volumes, in particular for high-power laser systems |
Aug. 16, 1988 |
| 4753443 |
Composite annular seals for rotary ball valves and ball joints |
Jun. 28, 1988 |
| 4721311 |
Mechanical seal assembly with coolant circulation tube |
Jan. 26, 1988 |
| 4699575 |
Adhesive pump and it's control system |
Oct. 13, 1987 |
| 4533265 |
Rolling bearing assemblies fitted with seals |
Aug. 6, 1985 |
| 4464580 |
Hydro-electric turbo-machine |
Aug. 7, 1984 |
| 4457491 |
Extreme-temperature sealing device and annular seal therefor |
Jul. 3, 1984 |
| 4434986 |
Shaft seal |
Mar. 6, 1984 |
| 4424975 |
Rotary shaft seal |
Jan. 10, 1984 |
| 4419086 |
Trunnion seal and cross venting system for a cardan-type universal joint |
Dec. 6, 1983 |
| 4411407 |
Ball valve assembly |
Oct. 25, 1983 |
| 4361333 |
Retort seal mechanism with integral bearings |
Nov. 30, 1982 |
| 4358119 |
Apparatus for gas-tight sealing of connection points of rotationally mounted machine parts |
Nov. 9, 1982 |
| 4345738 |
Fire safe seal |
Aug. 24, 1982 |
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