Patents by Inventor Nicolaas J. Poerink

Nicolaas J. Poerink 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).

  • Patent number: 4709807
    Abstract: A conveyor belt formed of links, in which the links each carry on a pair of opposite parallel sides, sleeve-shaped, mutually spaced ears which are each fitted into the spaces between the ears of adjoining links, such that the interfitted ears may be articulated relative to each other by transverse rods inserted therein. At the lateral side ears, the transverse rods are secured against displacement by pegs or dowels inserted from the side and acting as closing and stop devices.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: December 1, 1987
    Inventor: Nicolaas J. Poerink