Patents by Inventor David E. Larsen

David E. Larsen 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).

  • Discharge chute assembly for snowthrower
    Patent number: 5177888
    Abstract: A discharge chute assembly (30) includes a chute (32) and a pivotal deflector (34), the overlapping end portions of which define a partial spherical or ball joint (40) which maintains a tight seal against backflow and leakage over the entire range of rotation and deflection of the assembly. The assembly (30) is preferably secured to a rotatable base (54) by means of lower pivots (70) and a releasable fastener (72) for collapsibility.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: January 12, 1993
    Assignee: The Toro Company
    Inventors: Richard A. Thorud, Thomas K. Bricko, John R. Hacker, David E. Larsen, Dean R. Toensing, Donald M. White, III