Patents by Inventor David E. Whitten

David E. Whitten 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 automatically feeding the end of a web of material
    Patent number: 5605267
    Abstract: A device for automatically advancing the end of a web in a priming press. The device is particularly useful for advancing the web end over a former and into a folder unit in a press. The device includes at least one endless belt which moves from a retracted position to an engaged position, to thereby grip the web end and, upon rotation of the endless belt, advance the web end to the desired location in the press. The device of the present invention can also be used to advance a web end over a former roll, as well as over an angle roll, in a printing press.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: February 25, 1997
    Assignees: Heidelberger Druckmaschinen AG, Heidelberg Harris, Inc.
    Inventor: David E. Whitten
  • Remote sensing regulator and shutoff valve for valve manifolds
    Patent number: 3958599
    Abstract: A remote sensing regulator and shutoff valve for valve manifold applications. The manifold includes a pressure regulator and a shutoff valve downstream from the regulator. The sensing pressure input of the regulator is connected to a negative pressure area of the shutoff valve so that the output pressure of the regulator is increased to compensate for pressure drops both upstream and downstream from the shutoff valve. The shutoff valve includes a control knob for adjusting the reference pressure and for shutting off the reference pressure simultaneously with shutting off the main stream through the shutoff valve.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: May 25, 1976
    Assignee: Air-Dry Corporation
    Inventors: Robert S. Sheldon, David E. Whitten