Patents by Inventor Mark D. Garner

Mark D. Garner 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: 4432541
    Abstract: A document feed device, illustrated with a copier machine, for recirculating documents through a processing station. A movable portion of the document feed device is mounted for pivoting movement to expose a lower document feed path. The movable portion contains several document moving rollers but no prime movers, gears or belts; these rolls are driven by frictional contact with each other and ultimately by contact with a set of driven rollers located in the nonmoving portion of the document feed device. The rollers comprising a document moving nip are oppositely skewed relative to the direction of document travel in order to move documents gently toward a reference edge and coefficients of friction of roller materials are chosen to insure correct document alignment.
    Type: Grant
    Filed: August 27, 1981
    Date of Patent: February 21, 1984
    Assignee: International Business Machines Corporation
    Inventors: William D. Clark, Mark D. Garner, John H. Rhodes, Jr., Bernard L. Wilzbach