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Class Information
Number: 384/113
Name: Bearings > Rotary bearing > Fluid bearing > Radial and thrust > Central member recess
Description: Subject matter wherein an inner relatively rotating element has a groove, or passage for receiving the fluid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7210850 |
Hydrodynamic bearing device, spindle motor and hard disk driving apparatus having the hydrodynamic bearing device |
May. 1, 2007 |
| 7011450 |
Fluid dynamic bearing device and motor including the device |
Mar. 14, 2006 |
| 6955472 |
Lubricant reservoir for gas bearing |
Oct. 18, 2005 |
| 6869212 |
Rotor/stator type homogenizer |
Mar. 22, 2005 |
| 6834997 |
Spindle device using dynamic pressure bearing |
Dec. 28, 2004 |
| 6761483 |
Combined radial-axial slide bearing |
Jul. 13, 2004 |
| 6604858 |
Hydro dynamic gas bearing and disk drive using the same |
Aug. 12, 2003 |
| 6457867 |
Method and apparatus for replenishing oil in a fluid dynamic bearing using a sleeve groove |
Oct. 1, 2002 |
| 6402384 |
Hydrostatic axle bearing |
Jun. 11, 2002 |
| 6371650 |
Hydraulic dynamic bearing and spindle motor and rotary assembly provided |
Apr. 16, 2002 |
| 6271612 |
Spindle motor |
Aug. 7, 2001 |
| 6267035 |
Fiber chopper apparatus and method |
Jul. 31, 2001 |
| 6215217 |
Dynamic pressure bearing motor |
Apr. 10, 2001 |
| 6211592 |
Motor for driving storage disks |
Apr. 3, 2001 |
| 6183135 |
Single plate hydrodynamic bearing with self-balancing fluid level and fluid circulation |
Feb. 6, 2001 |
| 6147424 |
Gas dynamic pressure bearing apparatus |
Nov. 14, 2000 |
| 6072660 |
Disk driving apparatus using dynamic pressure-type bearing device |
Jun. 6, 2000 |
| 6059459 |
Hydrodynamic pressure bearing |
May. 9, 2000 |
| 6020664 |
Electric spindle motor |
Feb. 1, 2000 |
| 6019515 |
Externally pressurized gas bearing assembly |
Feb. 1, 2000 |
| 5993066 |
Fluid retention principle for hydrodynamic bearings |
Nov. 30, 1999 |
| 5969903 |
Magnetic particle trap for hydrodynamic bearing |
Oct. 19, 1999 |
| 5956204 |
Magnetic disc drive having magnetic particle trap for hydrodynamic bearing |
Sep. 21, 1999 |
| 5941644 |
Hydrodynamic bearing |
Aug. 24, 1999 |
| 5926342 |
Air dynamic pressure bearing apparatus and data drive apparatus using the same |
Jul. 20, 1999 |
| 5885005 |
Bearing device and spindle motor provided with the bearing device |
Mar. 23, 1999 |
| 5879084 |
Hydrodynamic bearing |
Mar. 9, 1999 |
| 5872409 |
Bearing system and brushless DC motor using such system |
Feb. 16, 1999 |
| 5855438 |
Journal bearing apparatus |
Jan. 5, 1999 |
| 5736799 |
Miniature electric motor having bearing unit |
Apr. 7, 1998 |
| 5707154 |
Hydrodynamic fluid pressure bearings |
Jan. 13, 1998 |
| 5685647 |
Single plate hydrodynamic bearing with self-balancing fluid level and fluid circulation |
Nov. 11, 1997 |
| 5580175 |
Bearing with particle trap |
Dec. 3, 1996 |
| 5524502 |
Positioning apparatus including a hydrostatic bearing for spacing apart a supporting surface and a guide surface |
Jun. 11, 1996 |
| 5487608 |
Single plate hydrodynamic bearing with self-balancing fluid level and fluid circulation |
Jan. 30, 1996 |
| 5433529 |
Fluid bearing construction employing thrust plate with pressure compensation ports |
Jul. 18, 1995 |
| 5427456 |
Fluid bearing with asymmetrical groove pattern |
Jun. 27, 1995 |
| 5370463 |
Hydrodynamic gas bearing |
Dec. 6, 1994 |
| 5358339 |
Hydrodynamic fluid bearing with liquid-radial bearing and gas-thrust bearing |
Oct. 25, 1994 |
| 5273368 |
Hydrodynamic gas bearing |
Dec. 28, 1993 |
| 5239892 |
Rotating device |
Aug. 31, 1993 |
| 5137418 |
Floating self-centering turbine impeller |
Aug. 11, 1992 |
| 5120139 |
Dynamic pressure gas bearing |
Jun. 9, 1992 |
| 5096309 |
Hydrodynamic bearing system |
Mar. 17, 1992 |
| 5030074 |
Rotary machine with dynamic pressure bearing grooves on vane guide ring |
Jul. 9, 1991 |
| 5018880 |
Dynamic pressure bearing device |
May. 28, 1991 |
| 5018881 |
Self acting gas bearing apparatus |
May. 28, 1991 |
| 5011390 |
Rotary vane machine having stopper engaging recess in vane means |
Apr. 30, 1991 |
| 4997353 |
Vane pump with dynamic pressure bearing grooves on vane guide ring |
Mar. 5, 1991 |
| 4934836 |
Dynamic pressure type fluid bearing device |
Jun. 19, 1990 |
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