Patents by Inventor Charles W. Ward, deceased

Charles W. Ward, deceased 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 cleaning apparatus
    Patent number: 4189046
    Abstract: A conveyor belt cleaning apparatus includes a scraper member mounted for movement into engagement with a run of the conveyor belt, and includes at least one fluid pressure actuated ram or torque motor for holding the scraper member against the belt when the conveyor is in operation.
    Type: Grant
    Filed: October 13, 1977
    Date of Patent: February 19, 1980
    Inventors: Charles W. Ward, deceased, by Hilda Ward, administratrix