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Class Information
Number: 384/479
Name: Bearings > Rotary bearing > Antifriction bearing > Radial bearing > With specified seal > Pressure establishing or loading
Description: Subject matter wherein (a) means are provided to create a pressure condition within the sealing assembly, or (b) wherein means are provided whereby the seal is loaded responsive to pressure.










Patents under this class:

Patent Number Title Of Patent Date Issued
8702311 Rotating machine and additional ring Apr. 22, 2014
7845856 Gas vent plug, bearing device, and bearing Dec. 7, 2010
7296982 Air supply device Nov. 20, 2007
6619430 Refrigerant gas buffered seal system Sep. 16, 2003
6177744 Seal arrangement for an electric motor Jan. 23, 2001
6172436 Seal arrangement for an electric motor Jan. 9, 2001
5662312 Pressurized sheave mechanism for high pressure wireline service Sep. 2, 1997
5482378 Vacuum motor bering protection system Jan. 9, 1996
5322373 Vented, oil bath lubricated bearing structure for a motor Jun. 21, 1994
5141340 Roller bearing Aug. 25, 1992
5067732 Seal assembly Nov. 26, 1991
5048981 Modular drop-in sealed bearing assembly for downhole drilling motors Sep. 17, 1991
4969423 Crankshaft support structure Nov. 13, 1990
4883995 Automatic oil draining system for generators Nov. 28, 1989
4770548 Hydrodynamic seal Sep. 13, 1988
4744721 Turbopump sealing device May. 17, 1988
4545692 Seal for a rolling bearing unit Oct. 8, 1985
4323287 Bearing seal Apr. 6, 1982
4114702 Well drilling tool with lubricant level indicator Sep. 19, 1978
4114703 Well drilling tool having sealed lubrication system Sep. 19, 1978
4073548 Sealing system for a rotary rock bit Feb. 14, 1978











 
 
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