Patents by Inventor Jeffrey T. Gibbs

Jeffrey T. Gibbs 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).

  • Magnetic recording diskette having reduced-area fabric liner
    Patent number: 6473266
    Abstract: The invention presents a magnetic recording disc cartridge with two small fabric liners affixed inside the media compartment. One liner covers the lifter and the other covers the raised structure. The lifter and the raised structure bring the liners in contact with the flexible surface of the disc as it rotates, thus cleaning the disc. One or more protrusions in the media compartment prevent the disc from abrading the surface of the media compartment.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: October 29, 2002
    Assignee: Imation Corp.
    Inventors: Ronald H. Turchin, Jeffrey T. Gibbs
  • Method for forming a molded-in lifter for cleaning a flexible magnetic disc
    Patent number: 5980791
    Abstract: A method for forming a molded-in lifter for supporting a fabric liner of a flexible magnetic recording disc so that the disc is cleaned by rotation of the disc with respect to the liner when the disc is housed within a cartridge. The lifter is a raised rib that has a controlled height typically provided by deforming a molded-in rib to the desired height. The cartridge may also include a recess in the shell opposite the rib to receive the rib and prevent or reduce compression of the media if the cartridge is compressed.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: November 9, 1999
    Assignee: Imation Corp.
    Inventors: Joseph D. Berscheid, Randy L. Carlson, Jeffrey T. Gibbs, Ronald H. Turchin, Kristi L. Limke, Lee M. Langseth
  • Balanced reel hub for tape cassette reels
    Patent number: 5472150
    Abstract: A videocassette tape reel hub includes an outer cylinder having a receptacle formed as a recessed portion of the outer surface on the inside of the outer cylinder. A clamp is receivable in the receptacle to fasten tape to the reel hub. A balancing mass is formed within the outer cylinder to balance the increased mass of the clamp and receptacle.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: December 5, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Vincent P. Teuber, Jeffrey T. Gibbs