Patents by Inventor Marcel Alfred Steiner

Marcel Alfred Steiner 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).

  • Method of securing sheet metal to plastic
    Patent number: 4075751
    Abstract: A hand-held tool includes a pair of oppositely-directed punch heads coupled to a pneumatic cylinder and piston rod unit by an expansion linkage. A finger-actuated lever on the tool operates a valve to supply compressed air to the cylinder and piston rod unit which actuates the linkage and drives the punch heads apart. Each punch head is provided with a tri-facial point for forming a detent in metal adjacent plastic. Part of the metal is torn at the detent and embedded in the plastic to couple the two elements together. When the lever is released, air is routed to reverse the action of the cylinder and piston rod unit.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: February 28, 1978
    Assignee: The Coleman Company, Inc.
    Inventors: Lincoln Paul Tschoop, Marcel Alfred Steiner