Patents by Inventor Charles S. Hatfield

Charles S. Hatfield 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: 6182428
    Abstract: The mowing apparatus includes a frame supported by a plurality of wheels enabling ready movement of the frame over a support surface and a cutting assembly secured to the frame. The cutting assembly includes a laterally extending housing rotatably supporting a cutting implement and a motor coupled to the cutting implement for rapidly rotating the cutting implement. The cutting assembly is pivotally secured to the frame for movement about a first axis and a second axis substantially perpendicular to the first axis.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: February 6, 2001
    Inventor: Charles S. Hatfield
  • Patent number: 5005527
    Abstract: A one-piece animal leash having an adjustable collar. The leash, including an elongated strap, with the collar end terminating in a clamp member and D-ring. The strap passes through the D-ring and clamp member to form an adjustable loop which can be expanded or contracted, and locked infinitely along the length of the strap in order to fit animals of all sizes.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: April 9, 1991
    Inventor: Charles S. Hatfield