Patents by Inventor William E. Gagner

William E. Gagner 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).

  • Hand-held tool with hollow handle
    Patent number: 5483747
    Abstract: A lightweight renewable hand-held tool that may be easily renewed in the field including a tool head having a tapered shaft, an expandable sleeve, a hollow handle, and a movement assembly for moving the expandable sleeve back and forth along the tapered shaft in response to a rotation of the hollow handle. The expandable sleeve includes a tapered interior that slidably mates with the tapered shaft. Consequently, rotation of the hollow handle adjustably expands the expandable sleeve, forming a tight fit between the tapered shaft and the interior of the hollow handle. The preferred movement assembly is a threaded nut that engages a threaded stud located at a lower end of the tapered shaft. An antirotation fastener is preferably used to prevent the hollow handle from thereafter rotating during use of the tool.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: January 16, 1996
    Assignee: Harrow Products, Inc.
    Inventors: Alex Thompson, William E. Gagner
  • Hand-held tool with hollow handle
    Patent number: 5454165
    Abstract: A lightweight renewable hand-held tool that may be easily renewed in the field including a tool head having a tapered shaft, an expandable sleeve, a hollow handle, and a movement assembly for moving the expandable sleeve back and forth along the tapered shaft in response to a rotation of the hollow handle. The expandable sleeve includes a tapered interior that slidably mates with the tapered shaft. Consequently, rotation of the hollow handle adjustably expands the expandable sleeve, forming a tight fit between the tapered shaft and the interior of the hollow handle. The preferred movement assembly is a threaded nut that engages a threaded stud located at a lower end of the tapered shaft. An antirotation fastener is preferably used to prevent the hollow handle from thereafter rotating during use of the tool.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: October 3, 1995
    Assignee: Harrow Products, Inc.
    Inventors: Alex Thompson, William E. Gagner
  • Lopping Shear
    Patent number: D357390
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: April 18, 1995
    Assignee: Harrow Products, Inc.
    Inventors: Alex Thompson, Frederick P. Paretta, William E. Gagner