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Class Information
Number: 384/97
Name: Bearings > Rotary bearing > Water lubricated propellor shaft or well shaft
Description: Subject matter for supporting either a propellor shaft, or a well pump shaft and is lubricated by water.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7552782 |
Thrust-bearing assembly |
Jun. 30, 2009 |
| 7549487 |
Mandrel and bearing assembly for downhole drilling motor |
Jun. 23, 2009 |
| 7500787 |
Bearing assembly for downhole mud motor |
Mar. 10, 2009 |
| 7316508 |
Propeller shaft bearing |
Jan. 8, 2008 |
| 7309163 |
Thrust bearing assembly with a stack of thrust bearing members |
Dec. 18, 2007 |
| 6837621 |
Rotor bearing for increased lubricant flow |
Jan. 4, 2005 |
| 6416225 |
Bearing assembly for wellbore drilling |
Jul. 9, 2002 |
| 6250806 |
Downhole oil-sealed bearing pack assembly |
Jun. 26, 2001 |
| 6244359 |
Subsea diverter and rotating drilling head |
Jun. 12, 2001 |
| 6238093 |
Partial arc bearing assembly and method of making the same |
May. 29, 2001 |
| 6193572 |
Propeller assembly including a cantilever spring |
Feb. 27, 2001 |
| 6109790 |
Lubricant circulation system for downhole bearing assembly |
Aug. 29, 2000 |
| 5887982 |
Bearing assembly for use with a submerged apparatus and method for performing maintenance thereon |
Mar. 30, 1999 |
| 5860745 |
Bearing assembly |
Jan. 19, 1999 |
| 5803611 |
Marine bearing assembly |
Sep. 8, 1998 |
| 5765950 |
Thrust bearing assembly |
Jun. 16, 1998 |
| 5690434 |
Downhole tool bearing assembly |
Nov. 25, 1997 |
| 5385407 |
Bearing section for a downhole motor |
Jan. 31, 1995 |
| 5370400 |
Fluid environment sealing system |
Dec. 6, 1994 |
| 5350242 |
Bearing assembly for a downhole motor |
Sep. 27, 1994 |
| 5346314 |
Bearing assembly and vessel turret assembly |
Sep. 13, 1994 |
| 5289068 |
Two-stage submersible propulsor unit for water vehicles |
Feb. 22, 1994 |
| 5248204 |
Short stack bearing assembly |
Sep. 28, 1993 |
| 5220231 |
Integral motor propulsor unit for water vehicles |
Jun. 15, 1993 |
| 5209577 |
Downhole rotating machine having compliant radial bearings |
May. 11, 1993 |
| 5150972 |
Method of increasing the off bottom load capacity of a bearing assembly |
Sep. 29, 1992 |
| 5143455 |
Bearing sleeve with notched end |
Sep. 1, 1992 |
| 5037212 |
Bearing structure for downhole motors |
Aug. 6, 1991 |
| 4993848 |
Thrust bearing system for counter-rotating propeller shafts, particularly ships propeller shafts |
Feb. 19, 1991 |
| 4943172 |
Drill deck bushing |
Jul. 24, 1990 |
| 4932795 |
Electrically conductive plastic bushings for marine propulsion devices |
Jun. 12, 1990 |
| 4896367 |
Anti-corrosive stuffing box assembly |
Jan. 23, 1990 |
| 4861294 |
Shaft pressure ring and method for lubricating shaft log seals |
Aug. 29, 1989 |
| 4810105 |
Bearing sleeves |
Mar. 7, 1989 |
| 4802430 |
Composite rudder seal |
Feb. 7, 1989 |
| 4795273 |
Propeller shaft bearing arrangement |
Jan. 3, 1989 |
| 4764036 |
PCD enhanced radial bearing |
Aug. 16, 1988 |
| 4733976 |
Propeller shaft bearing arrangement |
Mar. 29, 1988 |
| 4710142 |
Propeller shaft bearing assembly |
Dec. 1, 1987 |
| 4029368 |
Radial bearings |
Jun. 14, 1977 |
| 3993371 |
Thin rubber surfaced bearings |
Nov. 23, 1976 |
| 3971606 |
Water lubricated bearing device |
Jul. 27, 1976 |
| 3934952 |
Leakproof seal for bearings |
Jan. 27, 1976 |
| 3932004 |
Rubber bearing with non-metallic support member |
Jan. 13, 1976 |
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