Patents by Inventor R. Bruce Gifford

R. Bruce Gifford 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).

  • Damping configuration for improved disk drive performance
    Patent number: 5483397
    Abstract: A disk drive having attenuated vibrations for improved disk drive performance. The disk drive has first and second viscoelastic dampers effective in attenuating vibrations during operation of the disk drive.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: January 9, 1996
    Assignee: Quantum Corporation
    Inventors: R. Bruce Gifford, Michael C. Strzepa, Tom E. MacDonald, Frank W. Bernett
  • Transducer positioning apparatus
    Patent number: 4198871
    Abstract: Apparatus for moving a transducer carriage intermittently along a tract relative to a recording medium employs belting arranged in a closed loop that is tensioned by engagement around at least one idler and connected to the carriage. Belt end segments comprising the loop are wrapped in opposite directions around the periphery of a stepping motor-driven capstan and their ends are secured thereto at axially spaced apart locations thereon. The belting and idlers are arranged so that all of the belt segments wrapped around the capstan remain parallel to the carriage track as the capstan rotates so as to advance the carriage a maximum number of increments along its track.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: April 22, 1980
    Assignee: MFE Corporation
    Inventors: David S. Dunn, R. Bruce Gifford, Edward F. Burke, Jr.