Patents Represented by Attorney, Agent or Law Firm Raqhunath S. Minisandram
  • Stiffness compensation for a thermally compensated fluid dynamic bearing
    Patent number: 6822825
    Abstract: The present invention provides a hydrodynamic bearing design which is simple and reliable in design, while incorporating a shaft with a plug of high elastic modulus material fitted within a cylinder of a lower elastic modulus material than that of the plug, thereby compensating for temperature variations while maintaining radial stiffness of the system over a wide range of temperatures. The design is relatively inexpensive and easy to replicate in a high volume manufacturing process.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: November 23, 2004
    Assignee: Seagate Technology LLC
    Inventors: Troy Herndon, Jeffry LeBlanc, Robert Nottingham