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Class Information
Number: 384/100
Name: Bearings > Rotary bearing > Fluid bearing
Description: Subject matter wherein fluid pressure is used to support an element wholly, or partially, balance the bearing, or resist the vertical, or horizontal thrust of a rotary element by interposing a layer that in operation eliminates contact between relatively rotating elements.










Sub-classes under this class:

Class Number Class Name Patents
384/103 Flexible member 98
384/107 Radial and thrust 547
384/114 Radial 242
384/121 Thrust 161
384/101 With antifriction bearing 42


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
7521830 Fan motor and oil-leak proof bearing system thereof Apr. 21, 2009
7513688 Hydrodynamic bearing device and inspection method of amount of working fluid Apr. 7, 2009
7513689 Hydrodynamic bearing device Apr. 7, 2009
7510329 Bearing unit and rotary drive using the same Mar. 31, 2009
7497626 Spindle motor structure and hard disk drive employing the same Mar. 3, 2009
7495863 Hydrodynamic bearing device, and spindle motor and information device using the same Feb. 24, 2009
7484891 Oil film bearing for roll pins having a hydrostatic support Feb. 3, 2009
7465097 Fluid dynamic bearing system Dec. 16, 2008
7465098 Spindle motor having variably grooved radial and thrust bearing with reduced groove angle near bearing entry Dec. 16, 2008
7459416 Fluid bearing unit and spindle motor using the same Dec. 2, 2008
7455456 Bearing unit and rotation drive device using the same Nov. 25, 2008
7441957 Fluid dynamic bearing Oct. 28, 2008
7431505 Fluid lubrication bearing apparatus Oct. 7, 2008
7416341 Capillary reservoir for FDB motors Aug. 26, 2008
7413347 Fluid dynamic bearing system Aug. 19, 2008
7396164 Compensated orifice for use in hydrostatic fluid bearing Jul. 8, 2008
7374340 Fluid dynamic-pressure bearing, spindle motor and recording disk driving device May. 20, 2008
7374341 Hydrodynamic bearing arrangement for an electric motor May. 20, 2008
7371010 Hydrodynamic bearing device and compact motor including hydrodynamic bearing device May. 13, 2008
7345844 Servo track writer with helium bearing Mar. 18, 2008
7344002 Method and apparatus for filling the bearing gap of a hydrodynamic bearing with a lubricant Mar. 18, 2008
7340834 Method of lubricating bearings Mar. 11, 2008
7300209 Aerodynamic bearing assembly for spindle motor for hard disk drives Nov. 27, 2007
7296932 Fluid dynamic bearing having an acute-angled shaft recess Nov. 20, 2007
7293917 Spindle motor having hydrodynamic pressure bearing Nov. 13, 2007
7284907 Gas bearing system Oct. 23, 2007
7284908 Hydrodynamic bearing device and motor Oct. 23, 2007
7281851 Spindle device utilizing externally pressurized gas bearing assembly Oct. 16, 2007
7258487 Bearing unit, and motor and electronic apparatus having the bearing unit Aug. 21, 2007
7226211 Shaft for fluid dynamic bearing, fluid dynamic bearing device, and method of manufacturing the shaft Jun. 5, 2007
7222861 Sealing in a hydraulic turbine unit May. 29, 2007
7207720 Static gas bearing system, stage mechanism, exposure apparatus, and device manufacturing method Apr. 24, 2007
7201379 Seal assembly, cartridge, and method Apr. 10, 2007
7201516 Fluid bearing device Apr. 10, 2007
7196028 Sliding device, fluid dynamic pressure bearing, and motor using the same Mar. 27, 2007
7189003 Turbomachine Mar. 13, 2007
7178983 Spindle motor and magnetic disk drive Feb. 20, 2007
7155825 Method of liquid withdrawal from a tool spindle Jan. 2, 2007
7153028 Hydrodynamic bearing system Dec. 26, 2006
7150152 Vibration limiter for coaxial shafts and compound turbocharger using same Dec. 19, 2006
7147376 Dynamic bearing device Dec. 12, 2006
7140777 Hydrodynamic bearing assembly Nov. 28, 2006
7111988 Dustproof structure for a sleeve bearing Sep. 26, 2006
7061151 Supporting device of rotor Jun. 13, 2006
7059771 Motors with oil dynamic pressure bearing, oil dynamic pressure bearing devices and method for manufacturing the same Jun. 13, 2006
7056024 Through hub oil fill and vent for a fluid dynamic bearing motor Jun. 6, 2006
7008108 Gas bearing for a rapidly rotating shaft, comprising an adjusting device for eccentrically adjusting a gas bearing and a method for operating a gas bearing of this type Mar. 7, 2006
7008109 Dynamic pressure bearing device Mar. 7, 2006
6982510 Low profile fluid dynamic bearing Jan. 3, 2006
6979128 Spindle motor for hard disc drive Dec. 27, 2005

1 2 3 4 5 6 7 8 9 10 11










 
 
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