Patents by Inventor Andre Mottet

Andre Mottet 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 for production of crimpable chemical yarns
    Patent number: 4247503
    Abstract: The process of an apparatus for asymmetrically heat treating chemical yarns by applying different temperatures on either side of a plane passing through two generatrices of a peripheral surface of each orifice through which the yarns are extruded during production. One side of the plane is preferably at a temperature slightly higher than the melting point of the material and the other side of the plane is preferably at a temperature slightly lower than the decomposition point of the material.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: January 27, 1981
    Assignee: ASA S.A.
    Inventors: Jean Venot, Andre Mottet