Patents by Inventor David Mayau

David Mayau 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: 6874542
    Abstract: A flexible hose with connect flange and a method for obtaining such a hose. The flexible hose (1) whereof the elastomer wall (1a) is reinforced by at least a main carcass (2) comprises flexible cables, including at least at one of its ends an annular flange (3), provided with longitudinal perforations, whereto is fixed at least the main carcass, the flange having an external diameter not greater than the external diameter of the hose wall proximate to the flange. The flange comprises perforations (34a) emerging on one or more indentation(s) (12) provided on the outer surface (9) of the hose wall and whereof the dimensions enable to house therein at least linking elements (15) externally accessible for abutting connection of pipes without interposition of an intermediate component between their respective flanges.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: April 5, 2005
    Assignee: Trelleborg Industrie
    Inventors: David Mayau, Guy Laurand
  • Publication number: 20040035484
    Abstract: The invention concerns a flexible hose with connect flange and a method for obtaining such a hose. The flexible hose (1) whereof the elastomer wall (1a) is reinforced by at least a main carcass (2) comprises flexible cables, including at least at one of its ends an annular flange (3), provided with longitudinal perforations, whereto is fixed at least the main carcass, said flange having an external diameter not greater than the external diameter of the hose wall proximate to the flange. The invention is characterised in that the flange comprises perforations (34a) emerging on one or more indentation(s) (12) provided on the outer surface (9) of the hose wall and whereof the dimensions enable to house therein at least linking means (15) externally accessible for abutting connection of pipes without interposition of an intermediate component between their respective flanges.
    Type: Application
    Filed: May 5, 2003
    Publication date: February 26, 2004
    Inventors: David Mayau, Guy Laurand
  • Patent number: 5518034
    Abstract: A flexible hose which makes possible the early visual detection of a malfunction, can have a structure which allows a localized deformation in specified zones. This structure can have a combination of at least one radial expansion zone, and at least one compensation zone, wherein a localized deformation can occur as soon as the leak pressure of the leaking fluid reaches a threshold value which is only a fraction of the operating pressure of the fluid being transported through the hose.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: May 21, 1996
    Assignee: Caoutchouc Manufacture et Plastiques
    Inventors: Bernhard Ragout, Charles Moreau, David Mayau
  • Patent number: 5171188
    Abstract: An internal combustion engine having a power generating device, and a transmission link connecting the power generating device to an accessory operated by the power generating device, the transmission link being tensioned by a tension adjusting device which pivots, during tension relaxation, around an imaginary center of rotation, and during a tension increase, around a stop, such that the two elastic rigidities achieved for both rotations are in a ratio of at least two.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: December 15, 1992
    Assignee: Caoutchouc Manufacture et Plastiques
    Inventors: Eric Lardrot, David Mayau, Philippe Stamm