Patents by Inventor Timothy H. Sparks

Timothy H. Sparks 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).

  • Paper printability tester
    Patent number: 4803872
    Abstract: An apparatus is provided to integrate the steps of (1) distributing test ink to form a film of uniform thickness over the surface of a transfer roll; (2) transferring the ink film in a controlled number of revolutions at a controlled nip pressure onto an applicator roll; and, (3) further transferring the ink film in a controlled time interval to the surface of a test specimen at a controlled print pressure for a controlled number of print impressions.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: February 14, 1989
    Assignee: Westvaco Corporation
    Inventors: Steven M. Crawford, Eugene W. Crowder, Timothy H. Sparks