Patents Assigned to J. C. Pemberton
  • Controllable clutch
    Patent number: 4796738
    Abstract: A mechanical clutch which is selectively engageable and disengageable. Interposed between an input member and an output member are a plurality of clutch rollers. In disengaged mode they rotate freely, relative to the members. In engaged mode they bunch together, thereby locking together and to the members, all of which then move together as a unit. A control member is applied to the clutch rollers to either engage or disengage the clutch. The movement of the members may be rotary or linear.
    Type: Grant
    Filed: May 13, 1987
    Date of Patent: January 10, 1989
    Assignee: J. C. Pemberton
    Inventor: Gregory M. East