Patents by Inventor Louis G. Duthy

Louis G. Duthy 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).

  • Drive device for rotating hollow elements
    Patent number: 6164587
    Abstract: A drive device for rotating a hollow element (31) comprises at least three pads (32) movable between a first position where the hollow element (31) can be threaded onto the device (30) and a second position where each pad (32) is moved radially in relation to an axis of rotation of the device (30). The device (30) further comprises a mechanism (33) for actuating the pads (32) in such a way that when a hollow element (31) is on the device (30), each pad (32) is at an approximately equal distance from the axis of rotation of the device (30).
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: December 26, 2000
    Assignee: Eastman Kodak Company
    Inventors: Andre R. Martin, Louis G. Duthy