Patents by Inventor Raymond W. Willsie

Raymond W. Willsie 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: 5233820
    Abstract: A lawnmower blade which is characterized by an elongated, flat blade bar having a slight twist and fitted with a blower element at each end, along with pivotally or rotatably-mounted cutter discs. Each blower element includes a base plate secured to the blade bar and terminating in an extending blower top plate having top plate serrations on the end thereof. In a first preferred embodiment a perforated cutter disc is secured to each end of the blade bar beneath the blower element by means of a shoulder bolt which extends through one of six perforations to facilitate pivotally and eccentrically mounting the perforated cutter discs to the blade bar. In a second preferred embodiment a two-piece cutter disc is rotatably mounted on each end of the blade bar through an enlarged center opening.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: August 10, 1993
    Inventor: Raymond W. Willsie