Patents by Inventor Glenn R. Gaster

Glenn R. Gaster 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).

  • Belt driven cartridge with magnetic brake assembly
    Patent number: 5346155
    Abstract: A data cartridge of the type in which magnetic recording tape is reversibly driven from one spool to another by an endless elastic drive belt contacting the periphery of the tape spools, a drive roller, and two located rollers at opposite corners of the cartridge. Tape tension and drive force are controlled by predetermined drag resulting from magnetic brakes built into the corner rollers.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: September 13, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jerry L. Alexander, Durkee B. Richards, Glenn R. Gaster