Patents Assigned to Michael J. Plank
  • Quick-release cam lock with locking pin
    Patent number: 5513555
    Abstract: A quick-release cam lock for selectively locking the relative position of a hydraulic cylinder and a piston. The quick-release cam lock permits speedy unlocking and repositioning of the hydraulic cylinder and its accompanying piston, thus allowing for speed in repositioning, assembly or disassembly while also providing a secure positive positioning lock between the hydraulic cylinder and the piston while the quick-release cam lock is engaged. A locking pin selectively locks the cam lock in an opened position.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: May 7, 1996
    Assignee: Michael J. Plank
    Inventors: Michael J. Plank, Victor M. Cerda, Fred B. Plummer