Patents by Inventor John M. Trichell

John M. Trichell 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: 4899444
    Abstract: A unique one-piece disposable clipper head is characterized by the provision of a synthetic plastic base molded as a unitary structure about two metal cutting blades which are integrally formed with the base during an insertion molding process. The base includes a fixed portion with which the lower cutting blade is integrally formed and a movable portion with which the upper cutting blade is integrally formed. The upper movable portion and the lower fixed portion of the base are initially formed as a unitary structure. Following molding of the base, the movable portion is separated from the fixed portion to afford horizontal or lateral displacement of the movable portion and the upper blade relative to the fixed base portion and the lower blade. The base contains a recess in the bottom surface thereof for receiving the clamping mechanism of an electric clipper for attachment thereto.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: February 13, 1990
    Inventors: John M. Trichell, Ronald M. Wheeler