Patents by Inventor Manuel Escandell

Manuel Escandell 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).

  • Method of manufacturing helically wound tubes and tubes manufactured by said method
    Patent number: 4481978
    Abstract: A typical embodiment of the invention produces helically wound tubes from strips of thin plate in which adjacent edges are provided with interlocking ribs that are folded over to form a compressed bead. A further rib is formed at the bead, the bead providing one of the sides of the new-formed rib.
    Type: Grant
    Filed: July 3, 1979
    Date of Patent: November 13, 1984
    Assignee: Westaflex-Werk L.U.F. Westerbarkey GmbH & Co.
    Inventor: Manuel Escandell