Patents by Inventor Aubrey E. Corbett

Aubrey E. Corbett 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).

  • Tape drive having a selectively retractable drive hub
    Patent number: 5227935
    Abstract: In order to enable a tape drive machine to be constructed in a housing (30) with low height, a hub (36) which in operation projects from a drive motor (34) into a tape cartridge (10) is retractable into the motor (34) to permit the cartridge (10) to be slid out from the machine in the edgewise direction. In an alternative embodiment, the motor and hub can be slid part-way out of the housing (30). A tape drive machine also discloses indexing of a tape drive head, a path for the tape, threading of the tape, the drive motor, construction of a motor stator, and detection of the beginning and end of tape.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: July 13, 1993
    Assignee: M4 Data Limited
    Inventors: Norman Gordon, Robert V. Elliott, Charles W. Donkin, Aubrey E. Corbett
  • Inflatable supports
    Patent number: 4225989
    Abstract: A ripple bed has an upper and a lower inflatable layer. The upper layer has separate air passages which are independently inflatable and deflatable to provide the rippling effect. The lower layer is separately inflatable to provide support over any area of the upper layer which is deflated.
    Type: Grant
    Filed: October 5, 1978
    Date of Patent: October 7, 1980
    Assignee: Glynwed Group Services Limited
    Inventors: Aubrey E. Corbett, Siu L. Ho, Ronald J. Clark