Patents by Inventor William O. Leitzel

William O. Leitzel 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).

  • Supporting means for an electrical circuit
    Patent number: 4250539
    Abstract: A support for an electrical circuit such as that in a flashlight is provided so as to be powered by a four layer carbon-zinc battery of the type that is normally discarded with the rest of the apparatus used in an instant camera. The battery and housing are shaped so that the assembly is about wallet size and so that circuit may be energized simply by reciprocating the battery within the support.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: February 10, 1981
    Inventors: William O. Leitzel, Tom Thinesen