Patents by Inventor Marcel Le Foll

Marcel Le Foll 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).

  • Patent number: 6539599
    Abstract: A device for assembly of a flexible conduit element consisting essentially of a flexible ring-corrugated or helical-shaped bellows body which is displaced over an inner arbor in order to introduce a jacket into the corrugations of the bellows body, has an the inner arbor comprising actuating elements for engagement into the corrugations of the bellows body at an inner side thereof. The inner arbor has an axial length which can be adjusted.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: April 1, 2003
    Assignee: IWKA Balg- und Kompensatoren-Technologie GmbH
    Inventors: Hans Peter Martin, Marcel Le Foll
  • Publication number: 20010037548
    Abstract: A device for assembly of a flexible conduit element consisting essentially of a flexible ring-corrugated or helical-shaped bellows body which is displaced over an inner arbor in order to introduce a jacket into the corrugations of the bellows body, has an the inner arbor comprising actuating elements for engagement into the corrugations of the bellows body at an inner side thereof. The inner arbor has an axial length which can be adjusted.
    Type: Application
    Filed: April 4, 2001
    Publication date: November 8, 2001
    Applicant: IWK Regler und Kompensatoren GmbH
    Inventors: Hans Peter Martin, Marcel Le Foll
  • Patent number: 5934710
    Abstract: A sealing device for the sealed connection of two pipes placed end to end includes an upper component and a lower component. The upper component includes a frustoconical rib extending outward from a cylindrical end part and diverging upward into a first wall forming a return, an elastically deformable external skirt formed from a second wall connected to the frustoconical rib through the return, a circular groove defined between the rib and the skirt and formed by the first and second walls, and a retainer provided in a lower edge of the external skirt. The lower component is matable with the upper component and includes a third wall forming a frustoconical socket that flares upward, a fourth wall forming a frustoconical external skirt diverging downward, and a circular rib formed by merger of the third and fourth walls.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: August 10, 1999
    Assignee: Tubest
    Inventor: Marcel Le Foll
  • Patent number: 5562126
    Abstract: A reinforced flexible pipe includes an impermeable hose and a reinforcement tube composed of an interlacement of flat rovings wound helically about the axis of the hose. Each flat roving is constructed of a plurality of filaments, such as wires. The interlacement of the coaxial reinforcement tube includes metal tapes helically wound about the axis of the hose and interlaced with the flat rovings.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: October 8, 1996
    Assignee: Tubest
    Inventors: Gerard Briand, Dominique Maingre, Marcel Le Foll, Daniel Valtre