Patents by Inventor John Papsdorf

John Papsdorf 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).

  • Patent number: 6749251
    Abstract: A motor vehicle includes a vehicle body having sides, a floor, and a roof defining an interior. The motor vehicle also includes a passageway located adjacent the floor and extending between the interior and an exterior of the motor vehicle for loading and unloading items on the floor. The motor vehicle further includes a door connected to the vehicle body between the interior and the exterior to open and close the passageway.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: June 15, 2004
    Inventor: John Papsdorf
  • Patent number: 4998336
    Abstract: The present invention is a method and apparatus for fabricating a truss including a plurality of truss components and nailers having projections for engaging the truss components at the ends thereof to form a joint. The present invention includes moving a table from a horizontal position to an inclined position and loading a plurality of nailers and truss components in a predetermined configuration upon a support fixture supported by the table. The present invention includes moving the table to the horizontal position and slidably moving the support fixture from the table to a space between an upper press platen and a lower press platen of a press. The present invention further includes moving the upper press platen towards the lower press platen to advance the projections of the nailers simultaneously into the truss components to form an integral one-piece truss.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: March 12, 1991
    Inventor: John Papsdorf
  • Patent number: 4379360
    Abstract: A method of making a hinge having a tongue component with an integral pin portion. The tongue component is formed by rolling up a free end of a shaped sheet metal blank and intermittently shaping the rolled portion with dies. The roll or degree of rotation inparted to the free end of the sheet metal blank to form the pin should preferably be between 475.degree. and 550.degree..
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: April 12, 1983
    Assignee: Liberty Hardware Manufacturing Corp.
    Inventor: John Papsdorf
  • Patent number: D282671
    Type: Grant
    Filed: November 21, 1983
    Date of Patent: February 18, 1986
    Assignee: PTL Engineering
    Inventor: John Papsdorf