Patents by Inventor Alexander S. Johnson

Alexander S. Johnson 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 with tray for counteracting inverted cartridge insertion
    Patent number: 5999362
    Abstract: A magnetic tape drive (20) has features for counteracting inverted insertion of a tape cartridge. A loading tray (30) of the drive has a displaceabie dustcover release element (72) which actuates a release lever of a dustcover of the cartridge when the cartridge is properly inserted into the tray but which displaces when an inverted cartridge is inserted into the tray. In one embodiment, the displaceable dustcover release element resiliently protrudes through an aperture (70) of a bottom wall (60) of the tray and into an interior of the tray. The tray has a bottom wall with a bottom wall edge (90) configured to extend over a dustcover lid of an inverted cartridge inserted into the tray and thereby preclude catching of the dustcovet on the bottom wall. Moreover, the tray has inverted cartridge stop members (82) provided at a position to abut an inverted cartridge upon full insertion of the inverted cartridge into the tray.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: December 7, 1999
    Assignee: Exabyte Corporation
    Inventors: Michael H. Ulrich, Alexander S. Johnson, Gary French
  • Floor cleaning machine
    Patent number: D364012
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: November 7, 1995
    Assignee: Windsor Industries, Inc.
    Inventors: Eugene L. Bothun, Tim L. Mercer, Alexander S. Johnson, Edward T. Biegel