Patents by Inventor Richard A. Schaff

Richard A. Schaff 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).

  • Drive system for lawn mowers
    Patent number: 5353578
    Abstract: A lawn mower is provided with a speed control mechanism which is controlled by a single cable. A return spring, floating power transfer shaft, and biasing assembly provide a speed control mechanism which is effective in design and operation.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: October 11, 1994
    Assignee: Fuqua Industries, Inc.
    Inventors: Robert W. Irby, Richard A. Schaff
  • Mower having fluid dispersion characteristics
    Patent number: 5195308
    Abstract: A cost- and labor-effective, efficient, safe, and easy-to-use lawn care apparatus is provided. The apparatus can not only cut grass as known in the art but can also be used to dispense liquid either behind its cutting path or by a manually directed wand. A tank agitation feature period continuous intermixing of the tank.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: March 23, 1993
    Assignee: Fuqua Industries
    Inventors: Douglas E. Grote, Richard Schaff, Beth A. Logue, Terry Mitchell, Todd A. Sutton