Patents by Inventor William P. Hopkins

William P. Hopkins 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).

  • Work bench
    Patent number: 5120035
    Abstract: A workbench capable of clamping workpieces of various thicknesses. The workbench includes a laterally disposed work table mounted on a support structure. A clamping member is provided which includes a clamp positioned above the work table and configured to clamp a workpiece between the clamp and the work table. The workbench further includes a foot treadle pivotally mounted on the support structure. A linkage interconnects the foot treadle wit the clamping member such that rotation of the foot treadle in a first direction moves the clamp into clamping relation with the work table, and rotation of the foot treadle in a second direction moves the clamp away from the work table.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: June 9, 1992
    Assignee: Tekton Innovations, Inc.
    Inventors: Charles H. Neuenschwander, William P. Hopkins, David A. Petersen
  • Work bench
    Patent number: 4909495
    Abstract: A workbench capable of clamping workpieces of various thicknesses. The workbench includes a laterally disposed work table mounted on a support structure. A clamping member is provided which includes a clamp positioned above the work table and configured to clamp a workpiece between the clamp and the work table. The workbench further includes a foot treadle pivotally mounted on the support structure. A linkage interconnects the foot treadle with the clamping member such that rotation of the foot treadle in a first direction moves the clamp into clamping relation with the work table, and rotation of the foot treadle in a second direction moves the clamp away from the work table.
    Type: Grant
    Filed: August 25, 1988
    Date of Patent: March 20, 1990
    Inventors: Charles H. Neuenschwander, William P. Hopkins, David A. Petersen