Patents by Inventor Robert G. Tellkamp

Robert G. Tellkamp 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).

  • Document handling system to enable large document copying on a standard office copier
    Patent number: 4523837
    Abstract: A movable document handling system, or module, is utilized on a modified standard office copier. When the document handling module is moved away from the platen glass area, the document handling module equipment is disabled and the office copier may be used as a standard copier. When, however, the document handling module is moved over the platen glass, other optics and document handling apparatus are now energized and the standard office copier is now converted into a large document copier. Additional mechanical apparatus moves lenses in a predetermined fashion in the document handling module in order to allow for various levels of magnification for reducing the size of the copy from the large input document.
    Type: Grant
    Filed: July 14, 1983
    Date of Patent: June 18, 1985
    Assignee: Xerox Corporation
    Inventors: Russell A. Temple, Martin G. Wesseler, David C. Harper, Harry F. Eiland, Robert G. Tellkamp