Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and system for withstanding shock in a spindle motor bearing










Image Number 8 for United States Patent #7407327.

A system, method and means is provided for withstanding mechanical shock for use with fluid dynamic bearings. A sealing system is provided that withstands 1000 G shock events. In an aspect, a grooved pumping seal employed between a thrust plate and a shield, a thrust plate having spiral grooves, a fluid recirculation passageway, and a reservoir creates an asymmetric pressure gradient. In an aspect, fluid is retained and air is purged utilizing an enlarged fluid reservoir, axial channels and an angled fill hole. In an aspect, a shaft is attached to a top cover supplying radial stiffness, and an enlarged single-sided thrust plate improves dynamic parallelism.








 
 
  Recently Added Patents
Plants and seeds of corn variety CV294874
Positive electrode active material for nonaqueous electrolyte secondary battery
Methods and apparatus to provide haptic feedback
Proton conducting electrolytes with cross-linked copolymer additives for use in fuel cells
Compositions and methods for inhibition of MMP13:MMP-substrate interactions
Instrumenting configuration and system settings
Process for improving the hydrolysis of cellulose in high consistency systems using one or more unmixed and mixed hydrolysis reactors
  Randomly Featured Patents
Connector receptacle housings having reduced-wear finger contacts and reduced seam visibility
Photopolymerizable, positive working, peel developable, single sheet color proofing system
Source driving circuit for preventing gamma coupling
Polycystic kidney disease PKD2 gene and uses thereof
Recycling of flux material
Recognition of a state machine in high-level integrated circuit description language code
Vehicle-installed microcomputer system that interrupts power to higher accuracy power supply circuit for sensor A/D converter in sleep mode
Method of determining static flip-flop setup and hold times
Apparatus for monitoring fluid levels in a remotely located storage tank
Nitrile removal in an etherification process