Patents by Inventor Jacques Pontigny

Jacques Pontigny 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).

  • Separable coupling between two tubes and its production process
    Patent number: 3933379
    Abstract: The present invention concerns a separable coupling between two tubes.According to the invention, a tube of a thermoplastic material which dilates under the action of heat and which retains its dilated form after cooling, is used as first tube, the extremity of the first tube is introduced in a sleeve of an elastomer material, which has an internal diameter at most equal to the external diameter of the second tube and which is inserted in a rigid hollow cylindrical body, provided at least at the end of the introduction of the first tube with an abutment for the sleeve, and the extremity of the first tube introduced in the sleeve is heated to dilate this extremity.
    Type: Grant
    Filed: December 13, 1973
    Date of Patent: January 20, 1976
    Inventor: Jacques Pontigny