Patents by Inventor Johan B. A. Meijer

Johan B. A. Meijer 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 cleaning apparatus for reversible conveyor belts
    Patent number: 4694952
    Abstract: A scraper cleaning apparatus for reversible conveyor belts comprising a plurality of individual scraper elements which are all simultaneously pressed against the belt by the coordinated operation of first and second flexible vessels by which the scraper elements can be disengaged from the belt when reversing the direction of movement of the belt.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: September 22, 1987
    Assignee: Rodiac Intercessor Ltd.
    Inventor: Johan B. A. Meijer