Patents by Inventor Donald B. Hopings

Donald B. Hopings 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).

  • Apparatus for applying a pattern on a substrate
    Patent number: 4246866
    Abstract: A unitary, one-piece support element adapted to completely surround a glass substrate in a screen stenciling apparatus. The support element is in the form of a collar having an opening complementary to the shape of the substrate and offers support for the stencil screen during a stenciling operation to maintain the same in a flat condition throughout. Also embodied in the apparatus is a glass aligning arrangement to accurately locate the glass substrate in preparation for the stenciling operation.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: January 27, 1981
    Assignee: Libbey-Owens-Ford Company
    Inventors: Donald B. Hopings, Richard C. Phillips
  • Inspection apparatus
    Patent number: 4221053
    Abstract: An inspection apparatus for determining the contours of sheet material, particularly glass sheets, comprising a checking fixture having a plurality of probe assemblies for determining the exact position of points along the sheet and the deviation, if any, of such measured points from reference points constituting the ideal contour. The probe assemblies generate linear signals transmitted to a controller which, in turn, converts such signals into data displayed on a video screen in selectively different forms.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: September 9, 1980
    Assignee: Libbey-Owens-Ford Company
    Inventors: Robert J. Bobel, II, Richard H. Blausey, Jr., Edward D. Floyd, Donald B. Hopings, Russell C. Retzloff, Andrew W. Rudolph