Patents by Inventor William E. Bowmaker

William E. Bowmaker 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).

  • Rotary devices for cleaning conveyor belts
    Patent number: 4155442
    Abstract: A device for cleaning a conveyor belt comprises a rotatable annular scraper blade disposed below the belt, and inclined slightly to the plane of the belt so that one edge of the blade scrapes against the belt. The scraper is mounted on a carriage with side members having slots therein for adjustment of the position of the scraper relative to the belt and a worm device is disclosed for retrieving scraped material from below the scraper.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: May 22, 1979
    Assignee: Lodna Construction Limited
    Inventors: Edward A. Gosling, William E. Bowmaker