Patents by Inventor Gary Norman Karsten

Gary Norman Karsten 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).

  • Spray gun assembly with an air-operated paint agitation including a metal bellows
    Patent number: 5791561
    Abstract: A hand-held spray gun assembly (10) for spraying paints and other suspensions has a container (12) with a cover (14) sealingly covering the container (12). A motor (70) is attached to the cover (14) and has a piston rod (48) that reciprocates inside a piston assembly (68). A metal bellows (56) has a first end (62) coupled to the piston assembly (68) to form a seal. A shaft assembly (40) has a first end (46) extending through the metal bellows (56) and attached to the piston rod (68). The shaft assembly (40) has a circular flange (52) coupled to a second end (58) of the metal bellows (56) to form a second seal. A second end (39) of the shaft assembly (40) is attached to the paddle (38).
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: August 11, 1998
    Assignee: McDonnell Douglas
    Inventors: Jon Dean Beckmann, Gary Norman Karsten