Patents by Inventor J. Dolph Williams

J. Dolph Williams 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: 4736593
    Abstract: A frozen beverage machine is provided, comprising a frame containing a horizontally positioned stationary cylinder. A conventional cooling mechanism, typically comprising a compressor, a condenser, and cooling coils around the cylinder cools the cylinder. The cylinder is provided with an opening for removal of frozen beverages or ice cream. A shaft is rotatably and horizontally positioned within the frame and extends into the cylinder, where at least one beater bar is attached to the shaft. A motor assembly is operatively connected to and supported by the shaft exterior to the cylinder. A contact switch senses resistance to shaft rotation, and an adjustable spring maintains contact between the motor assembly and the contact switch until a desired resistance to shaft rotation, and thus a desired consistency of the semi-frozen beverage, is obtained.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: April 12, 1988
    Inventor: J. Dolph Williams