Patents by Inventor Donald J. McCurdy

Donald J. McCurdy 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).

  • Roller caliper gauge
    Patent number: 4741109
    Abstract: A roller caliper gauge for providing an accurate measurement of the thickness of a high speed web of paper or the like in which a proximity device located within a housing disposed between a pair of rollers on a head on one side of the web is responsive to a web in an operative position adjacent to the housing. A platen on a head on the other side of the housing is pneumatically moved toward the rollers to cause the web to make line contact with the rollers when in the operative position.
    Type: Grant
    Filed: November 7, 1986
    Date of Patent: May 3, 1988
    Assignee: Sentrol Systems, Ltd.
    Inventors: Donald J. McCurdy, Michael T. Riggin