Patents by Inventor Dennis M. Callen

Dennis M. Callen 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: 8307640
    Abstract: The present invention, called a sludge rotary motor, pertains to an apparatus for generating power which generally comprises a wheel assembly including a wheel, an axle, a ring gear, and a plurality of paddles extending outwardly from the wheel. A housing is provided to deliver a liquid-based material from a storage tank to the paddles, and the housing includes an arcuate portion and an inlet portion. The arcuate portion is positioned around an arcuate segment of the wheel and includes a substantially tubular curved inner surface, and the paddles pass through the arcuate portion. A liquid-based material is stored in an elevated storage tank to increase the weight of the liquid and delivered to the arcuate portion of the housing, thereby forcing the paddles downward and rotating the wheel assembly, which in turn can be used to drive a generator.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: November 13, 2012
    Inventor: Dennis M. Callen
  • Patent number: 4163806
    Abstract: An unbaked cheese cake is prepared by forming a mixture consisting essentially of cream cheese, non-dairy whipped topping and powdered sugar and refrigerating the mixture until firm to produce the cheese cake in final form without baking.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: August 7, 1979
    Inventors: Dennis M. Callen, Margo A. Callen