Patents by Inventor Rik Depraetere

Rik Depraetere 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).

  • Multi-strand cord for timing belts
    Patent number: 5784874
    Abstract: A steel cord (10) for the reinforcement of timing belts or transmission belts comprises only two to five strands (12) tightly twisted with each other in a first direction at a cord twisting pitch. Each of said strands (12) comprises only two to seven steel filaments (14) tightly twisted with each other in this first direction at a strand twisting pitch. The steel filaments (14) have a diameter ranging from 0.03 to 0.40 mm. The ratio strand twisting pitch to filament diameter is greater than 30, the ratio cord twisting pitch to filament diameter is greater than 30, and the ratio cord twisting pitch to strand twisting pitch is greater than 1. Such a steel cord has an acceptable low torsion moment under axial loads.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: July 28, 1998
    Assignee: N.V. Bekaert S.A.
    Inventors: Pol Bruyneel, Rik Depraetere, Frans Van Giel