Patents by Inventor Howard D. Ring

Howard D. Ring 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).

  • Writing apparatus having wear resistant material
    Patent number: 3971042
    Abstract: A stylus and its method of manufacture for forming an image on the recording medium of a printing apparatus having the structure of a substrate upon which a plurality of conductors are etched or printed. The writing edge of the stylus containing the pin electrodes formed by the conductors has a chip of wear resistant or hard material laminated to the substrate to prevent excessive wear of the pin electrodes. Alternately, the substrate itself is made of a wear resistant or hard material to prevent wear of the pin electrodes.
    Type: Grant
    Filed: October 12, 1972
    Date of Patent: July 20, 1976
    Assignee: Xerox Corporation
    Inventor: Howard D. Ring