Patents by Inventor Harry E. Lones

Harry E. Lones 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: 4236483
    Abstract: A metering roll, employed between the developing station and the transfer station of a photocopier which uses a liquid toner, controls the thickness of the liquid on the photosensitive drum surface when it is presented to the transfer station. Shoe-like elements fixed between the drum and roll maintain the central metering portion in a substantially constant spaced apart relationship to the photosensitive drum surface and thereby tend to limit and control the thickness of developer on the drum surface at the transfer station. One surface of the element substantially conforms to an arc of the drum surface and another surface defines a hole through which a portion of the metering roll passes.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: December 2, 1980
    Assignee: Nashua Corporation
    Inventors: Austin E. Davis, Raymond G. Cormier, Leo O. Lutz, Henry T. Pauk, Harry E. Lones