Patents by Inventor Thomas Campbell Paul

Thomas Campbell Paul 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).

  • Scraper chain conveyor
    Patent number: 4027793
    Abstract: The invention concerns a scraper chain conveyor in which one or more endless chains drive a plurality of spaced scrapers along a conveying channel to convey loose material such as excavated rock. The invention comprises the provision on the or each chain of one or more wear pads at positions spaced from the scrapers to spread over a substantial area the wear due to the chain under tension bearing on parts of the conveyor channel having bends or irregularities.
    Type: Grant
    Filed: May 7, 1974
    Date of Patent: June 7, 1977
    Assignee: Dowty Meco Limited
    Inventors: Friedrich Lampl, Thomas Campbell Paul