Patents Assigned to Skidmore-Wilhelm Manufacturing Co.
  • Impact wrench torque calibrator
    Patent number: 4562722
    Abstract: A torque calibrator allowing the accurate calibration of impact type wrenches. The calibrator measures the displacement of a heavy fixed beam in its natural oscillation mode. The beam has a long period of natural oscillation and an elastically soft segment preventing generation of rebound signals sometimes seen in stiff systems.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: January 7, 1986
    Assignee: Skidmore-Wilhelm Manufacturing Co.
    Inventors: Donald E. Schuele, John W. Wilhelm, Jr.