Patents by Inventor Robert J. Cann

Robert J. Cann 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).

  • Conveyor belt clamp
    Patent number: 4887336
    Abstract: A conveyor belt clamp is made up of a pair of parallel plates which hold a belt between them. Tension is applied by a tensioning bar which is fixed across arms attached to and projecting outwardly from each plate. A hydraulic ram applies the tension and the plates bow centrally towards the belt to give an even distribution of pressure across its width.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: December 19, 1989
    Assignee: Coal Industry (Patents) Limited
    Inventor: Robert J. Cann