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Class Information
Number: 277/419
Name: Seal for a joint or juncture > Seal between relatively movable parts (i.e., dynamic seal) > Close proximity seal (e.g., contactless, fluent, etc.) > Gap or clearance > Labyrinth > Formed by plural grooves or projections on opposing surfaces > Interfitting or overlapping
Description: Plural grooves or projections wherein the groove or projection extend beyond the inner or outer periphery of the other oppositely facing projection or groove.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7563079 |
Bore and shaft assembly |
Jul. 21, 2009 |
| 7445213 |
Stepped labyrinth seal |
Nov. 4, 2008 |
| 7419164 |
Compliant plate seals for turbomachinery |
Sep. 2, 2008 |
| 7396017 |
Shaft seal assembly |
Jul. 8, 2008 |
| 7066719 |
Bore and shaft assembly |
Jun. 27, 2006 |
| 7052014 |
Snap together bearing isolator |
May. 30, 2006 |
| 7044471 |
Cartridge-type mechanical seal and back plate |
May. 16, 2006 |
| 6923449 |
Baffle seal with removable ring element, and balance equipped with the baffle seal |
Aug. 2, 2005 |
| 6843482 |
Shaft seals for sealing pulverulent solids |
Jan. 18, 2005 |
| 6834860 |
Liquid seal |
Dec. 28, 2004 |
| 6726214 |
Wrap-around severe splash seal |
Apr. 27, 2004 |
| 6485022 |
Metallic labyrinth seal |
Nov. 26, 2002 |
| 6471215 |
Labyrinth sealing device having a grease purgeable system |
Oct. 29, 2002 |
| 6419233 |
Shaft seal assembly |
Jul. 16, 2002 |
| 6390477 |
Rotary shaft bearing isolator seal |
May. 21, 2002 |
| 6336637 |
Sever splash seal |
Jan. 8, 2002 |
| 6311984 |
Bearing isolator |
Nov. 6, 2001 |
| 6273429 |
Labyrinth cartridge seal, and centrifugal compressor applications thereof |
Aug. 14, 2001 |
| 6220603 |
Non retractable segmented packing ring for fluid turbines having special springs to reduce forces during shaft rubbing |
Apr. 24, 2001 |
| 6189892 |
High differential pressure type end rotor seal |
Feb. 20, 2001 |
| 6168163 |
Shaft seal for mixers |
Jan. 2, 2001 |
| 6164657 |
Seal device |
Dec. 26, 2000 |
| 6155574 |
Sealing device |
Dec. 5, 2000 |
| 6113105 |
Rotary shaft bearing isolator seal for dry comminuted materials |
Sep. 5, 2000 |
| 6073777 |
Sand resistant fluid swivel |
Jun. 13, 2000 |
| 6024362 |
Seal cartridge |
Feb. 15, 2000 |
| 6017037 |
Seal device |
Jan. 25, 2000 |
| 5967524 |
Hybrid seal device |
Oct. 19, 1999 |
| 5951020 |
Bearing isolator |
Sep. 14, 1999 |
| 5925955 |
Labyrinth seal system |
Jul. 20, 1999 |
| 5913812 |
Steam seal air removal system |
Jun. 22, 1999 |
| 5910094 |
Aircraft labyrinth fire seal |
Jun. 8, 1999 |
| 5833372 |
Auxiliary seal for a bearing and bearing incorporating such a seal |
Nov. 10, 1998 |
| 5810365 |
Retractable segmented packing rings for fluid turbines |
Sep. 22, 1998 |
| 5735530 |
Seal device |
Apr. 7, 1998 |
| 5676472 |
Rotary labyrinth seal |
Oct. 14, 1997 |
| 5676221 |
Gear case |
Oct. 14, 1997 |
| 5639095 |
Low-leakage and low-instability labyrinth seal |
Jun. 17, 1997 |
| 5603510 |
Variable clearance seal assembly |
Feb. 18, 1997 |
| 5599026 |
Turbine seal with sealing strip and rubbing strip |
Feb. 4, 1997 |
| 5552650 |
Disk storage device with motor with axially deep flange |
Sep. 3, 1996 |
| RE35309 |
Sealing device |
Aug. 6, 1996 |
| 5533737 |
Seals with particle exclusion means |
Jul. 9, 1996 |
| 5503405 |
Apparatus for providing uniform radial clearance of seals between rotating and stationary components |
Apr. 2, 1996 |
| 5498006 |
Pinned unitary bearing seal |
Mar. 12, 1996 |
| 5496046 |
Turbine seal rub protection means |
Mar. 5, 1996 |
| 5487549 |
Turbine interfitting packing with cam adjustment |
Jan. 30, 1996 |
| 5480161 |
Shaft seal with controlled porosity elements |
Jan. 2, 1996 |
| 5464226 |
Retractable packing rings for steam turbines |
Nov. 7, 1995 |
| 5395124 |
Retractible segmented packing ring for fluid turbines having gravity springs to neutralize packing segment weight forces |
Mar. 7, 1995 |
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