Patents by Inventor Thomas E. VanValkenburgh

Thomas E. VanValkenburgh 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).

  • Passive web cutter
    Patent number: 4920842
    Abstract: A web cutter for use in high speed web transport machines has a roller with a hub, two flanges and three knives supported on the hub between the flanges. In one preferred embodiment the web rides on shoulders provided on the flanges. In another embodiment, the web rides on spacers that are held in position by spring biased conically tipped pilot pins. In a third embodiment the web rides on a slotted cylinder. In all embodiments the web is brought into engagement with one of the knives directly in response to excessive tension in the web.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: May 1, 1990
    Assignee: Eastman Kodak Company
    Inventors: David M. Orlicki, David B. Gropp, Thomas E. VanValkenburgh