Patents by Inventor Leonard A. Grew

Leonard A. Grew 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: 4045891
    Abstract: A device for digging, balling and relocating a tree for mounting on a vehicle having twin spaced booms having an attachment plate pivotally mounted thereto. The device includes a rear blade for connection with the attachment plate of the vehicle together with first and second arms rotatably mounted about the longitudinal axis thereof on the attachment plate. The arms are also pivotally mounted on the attachment plate. Each arm carries at the outer end thereof a side blade. A hydraulic ram rotates and pivots each of said arms to thereby move the blades thereof together or apart relative to the rear blade.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: September 6, 1977
    Inventor: Leonard A. Grew