Patents by Inventor Alain Vouzellaud

Alain Vouzellaud 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).

  • Tubular rod for the treatment of the inside surface of a tube
    Patent number: 4849084
    Abstract: The rod incorporates a sealing device enabling a part of the inside surface of the tube, extending along its length, to be isolated from adjacent zones. The sealing device comprises two assemblies (5, 6) spaced along the length of the rod and each consisting of an annular piston (26, 36) slidably mounted on the body (2) of the rod, and at least one annular seal (32, 42) interposed between the piston and a radial support flange (33, 43). Compressed air supplied to the piston (26, 36) enables the seal (32, 42) to be compressed and to undergo radial expansion.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: July 18, 1989
    Assignee: Framatome
    Inventor: Alain Vouzellaud