Carrier Speed Or Tension Control Patents (Class 242/334)
Plural speeds (Class 242/334.1)
Diverse signal inputs (Class 242/334.2)
Tachometer-type signal device (Class 242/334.4)
Coil diameter or weight responsive sensor (Class 242/334.5)
Carrier tension responsive signal (Class 242/334.6)
  • 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