Patents by Inventor Arthur Griffiths

Arthur Griffiths 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).

  • Apparatus for collecting material which becomes dislodged from the underside of a continuous belt conveyor
    Patent number: 4620627
    Abstract: The method and apparatus of the invention are for collecting particulate material which falls off the underside of the lower return run of a belt conveyor, and returning that material to the carrying run of the conveyor. An elevator is mounted around the conveyor at the position of a support roller for the lower run, where there is vibration and material is dislodged. The dislodged material is conveyed to a chute over the upper rim of the conveyor without any scraping contact with the underside of the lower run.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: November 4, 1986
    Assignee: Pilkington Brothers P.L.C.
    Inventor: Arthur Griffiths