Patents by Inventor Ward W. Harvey

Ward W. Harvey 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).

  • Torque sensing automatic shut-off and reset clutch for screwdrivers, nutsetters and the like
    Patent number: 5156244
    Abstract: An improved torque control and fluid shut-off mechanism for a fluid operated tool includes a driving clutch member and a driven bit holder connected by ball bearings retained by the clutch member which engages in pockets in the bit holder. The pockets include a specific ramp construction which insures that the threshold torque level of the tool in the forward direction is less than the threshold level in the reverse direction.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: October 20, 1992
    Assignee: The ARO Corporation
    Inventors: Douglas E. Pyles, Phil D. Thorp, Ward W. Harvey
  • Torque sensing automatic shut-off and reset clutch for screwdrivers, nutsetters and the like
    Patent number: 5054588
    Abstract: An improved torque control and fluid shut-off mechanism for a fluid operated tool includes a driving clutch member and a driven bit holder connected by ball bearings retained by the clutch member which engages in pockets in the bit holder. The pockets include a specific ramp construction which insures that the threshold torque level of the tool in the forward direction is less than the threshold level in the reverse direction.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: October 8, 1991
    Assignee: The Aro Corporation
    Inventors: Phil D. Thorp, Ward W. Harvey, Douglas E. Pyles