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Class Information
Number: 277/385
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.) > Particular axial biasing feature > Particular spring feature > Arrangement or location
Description: Particular spring feature wherein the spring has a specific organization or position.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7334799 |
Sealing device for a turbocharger |
Feb. 26, 2008 |
| 7219898 |
Spring supported dual element face seal with a run surface sleeve |
May. 22, 2007 |
| 7163206 |
Fluid seal |
Jan. 16, 2007 |
| 7121555 |
Seal assembly and crawler-track connection structure |
Oct. 17, 2006 |
| 6464231 |
Bellows seal with spring-loaded radial secondary seal |
Oct. 15, 2002 |
| 6412784 |
Split face mechanical seal system |
Jul. 2, 2002 |
| 6338489 |
Mechanical seal |
Jan. 15, 2002 |
| 6293555 |
Secondary seal for non-contacting face seals |
Sep. 25, 2001 |
| 6217028 |
Sealing apparatus for use with a rotatable shaft extending through a vessel |
Apr. 17, 2001 |
| 6186511 |
Seal assembly with an interlocking load ring |
Feb. 13, 2001 |
| 6017036 |
Mechanical shaft seal |
Jan. 25, 2000 |
| 6003874 |
Apparatus for sealing rotary tubes |
Dec. 21, 1999 |
| 5984312 |
Sealing device |
Nov. 16, 1999 |
| 5762343 |
Slide ring seal assembly |
Jun. 9, 1998 |
| 5354070 |
Split mechanical seal |
Oct. 11, 1994 |
| 5351972 |
Inside/outside mounted double mechanical face seal |
Oct. 4, 1994 |
| 5188377 |
Externally-mounted, stationary-design, self-aligning rotary face seal |
Feb. 23, 1993 |
| 5186473 |
Device for sealing a gap between two relatively moving surfaces |
Feb. 16, 1993 |
| 4886394 |
Shield tunneling machine |
Dec. 12, 1989 |
| 4836560 |
Seal |
Jun. 6, 1989 |
| 4795572 |
Replaceable trunnion seal |
Jan. 3, 1989 |
| 4765632 |
Lubricated rotary shaft seal |
Aug. 23, 1988 |
| 4754981 |
Unitized face sealing device |
Jul. 5, 1988 |
| 4687346 |
Low profile bearing support structure |
Aug. 18, 1987 |
| 4669739 |
Rotary mechanical fluid face seal with rigid restraint ring means |
Jun. 2, 1987 |
| 4650340 |
Rotating drum end seal |
Mar. 17, 1987 |
| 4586719 |
Mechanical seal |
May. 6, 1986 |
| 4583748 |
Face seal for shafts of machines processing synthetic resin |
Apr. 22, 1986 |
| 4434988 |
Shaft seal |
Mar. 6, 1984 |
| 4417734 |
Shaft seal assembly having universal washer with bores for springs |
Nov. 29, 1983 |
| 4412747 |
Sealing device in mixing equipment |
Nov. 1, 1983 |
| 4363491 |
Shaft seal assembly |
Dec. 14, 1982 |
| 4343478 |
Face seal assembly for rotating drum |
Aug. 10, 1982 |
| 4304407 |
Seal assembly |
Dec. 8, 1981 |
| 4185686 |
Sealing apparatus for rotary heat exchangers |
Jan. 29, 1980 |
| 4005953 |
Piston of a rotary piston engine of trochoid type, having an internal seal |
Feb. 1, 1977 |
| 3976392 |
Pump drive shaft sealing arrangement |
Aug. 24, 1976 |
| 3976407 |
Fluid power converter side seal |
Aug. 24, 1976 |
| 3931978 |
Mechanical seals |
Jan. 13, 1976 |
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