Patents by Inventor Keith John Turnbull

Keith John Turnbull has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Low pressure operation for reduced excitation in a disc drive
    Publication number: 20020012279
    Abstract: A disc drive includes a base, a spindle rotatably attached to the base, and at least one disc attached to the spindle. A cover is attached to the base. The cover and the base form a disc enclosure for the spindle and the disc or discs. A pump mechanism is located within the disc enclosure. The pump mechanism reduces the pressure within the disc enclosure. A valve is located in one of the cover and the base and allows a gas or fluid to move out of the disc enclosure.
    Type: Application
    Filed: May 10, 2001
    Publication date: January 31, 2002
    Inventors: James Edward Angelo, Keith John Turnbull, Kurt James Korkowski, Garry Edward Korbel, John William Elsing, Zine Eddine Boutaghou