Patents by Inventor Wayne Linquist

Wayne Linquist 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).

  • Manual keyway punching tool
    Patent number: 4375128
    Abstract: This invention relates to a manually operated cutting tool for cutting notches or slits in metal, plastic and the like.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: March 1, 1983
    Assignee: Ex-Cell-O Corporation
    Inventor: Wayne Linquist
  • Draw punch
    Patent number: 4353164
    Abstract: This invention relates to a draw punch and its purpose is to punch a hole in sheet metal or the like, particularly in inaccessible places, such as an electrical outlet box or other terminal outlets. Moreover, the metal slug is split into two pieces and is removed easier.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: October 12, 1982
    Assignee: Ex-Cell-O Corporation
    Inventors: Wayne Linquist, Vernon Pearson
  • Tube bending tool with angle sighting means
    Patent number: 4009602
    Abstract: A hand bender tool for bending tubes, pipes, conduits and other tubular material, and which is provided with raised indicators on a bending shoe and handle socket that coact with a conical sighting indicator disposed in a position above the shoe, to allow an operator to accurately bend a pipe to a desired angle of bend. A contoured foot treadle is provided with serrations which prevent slippage of the foot of an operator during a bending operation, so as to permit the operator to employ leg power to the fullest advantage.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: March 1, 1977
    Assignee: Greenlee Brothers and Co.
    Inventor: Wayne A. Linquist