Patents by Inventor Michel E. A. Vanhelle

Michel E. A. Vanhelle 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).

  • Process and apparatus for spinning cored filaments, and cored filaments thus obtained
    Patent number: 4495760
    Abstract: Fiber sheaths are drawn between a pair of drawing cylinders and continuous filaments are introduced upstream of the drawing cylinders to form two strands which are twisted together at a convergence point upstream of a winding mechanism. The tension of the strands is regulated, the strands are wound to form a filament, and the filament thus formed is retwisted on a spinning jenny.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: January 29, 1985
    Inventor: Michel E. A. Vanhelle