Patents by Inventor Jacobus Meester

Jacobus Meester 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).

  • Grading rolls for agricultural, horticultural and other articles
    Patent number: 4953712
    Abstract: A grading roll is provided having parallel and circumferentially closed sinuous grooves on the roll surface. The grooves are spaced axially along the longitudinal cross-sectional direction of each groove varies twice in angle with the roll axis, i.e., from 90 degrees to a certain value smaller than 90 degrees and back to 90 degrees. The bottoms of the grooves are at a constant radial distance from the roll axis, while the cylinder surface portions between the grooves decrease in radial distance from the roll axis from a minimum at the 90 degree angle portion of the grooves to a minimum between these portions.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: September 4, 1990
    Assignee: TS AGRO Products IM-Export B.V.
    Inventor: Jacobus Meester