Patents by Inventor David J. Cliff

David J. Cliff 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).

  • Pattern controllable dispensing apparatus
    Patent number: 6499673
    Abstract: The apparatus is designed to dispense sealants and adhesives onto a workpiece in a robotic or manual application. The apparatus has a motor, a through shaft and a rotating shaft. The rotating shaft is hollow and has an off-center aperture at the end thereof through which extends one end of the through shaft. By rotating the rotating shaft, the end of the through shaft has imparted to it an orbital motion which is capable of providing a swirl type pattern onto the workpiece.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: December 31, 2002
    Assignee: Graco Minnesota Inc.
    Inventors: Arnold W. Braun, Jr., David J. Cliff, David G. Gonska, Masoud Amin-Javaheri, David C. Mandeville, Mark E. Ulrich, Stanley G. Karwoski