Patents by Inventor Henri Delahaye

Henri Delahaye 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).

  • Non-rigid connection for circular pipes
    Patent number: 3998477
    Abstract: A device for non-rigid connection of two rigid cylindrical pipes comprises the combined use of flexible double-lipped gaskets and toroid flexible gaskets surrounding a bulb-shaped zone formed in one of the pipes. The device is particularly useful for fastening fragile tubes containing light emitters to metal reactors used for photochemical processes.
    Type: Grant
    Filed: July 24, 1974
    Date of Patent: December 21, 1976
    Assignee: Produits Chimiques Ugine Kuhlmann
    Inventors: Henri Delahaye, Fernand Fabre, Lucien Guerrera