Patents by Inventor Mark W. Pollard

Mark W. Pollard 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).

  • Lightweight, rigid, compact configuration for the voice coil, carriage and printed circuit cable in a disc drive
    Patent number: 4967296
    Abstract: The carriage assembly of this invention includes an oval coil whose shape is maintained by a rectangular bobbin which is passed through the open sides of the rectangular carriage frame and fastened inside the carriage frame so that the ends of the coil protrude from the carriage frame and define symmetrical semi-cylindrical openings on either side of the carriage for cooperation with the magnetic pole pieces of the voice coil motor. The transducers are mounted to arms which fit into precision machined slots in a head mounting block mounted on the front of the rectangular carriage. The connector cable to the transducers is a printed circuit cable (PCC) that passes directly through the bottom portion of the carriage and lies flat along the path of travel of the carriage between the voice coil motor segments which define the movement of the carriage.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: October 30, 1990
    Assignee: Seagate Technology, Inc.
    Inventors: John P. Wiens, Mark W. Pollard, John O. Weinberg