Patents by Inventor Michel Saxod

Michel Saxod 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 and apparatus for making sealing rings of the radial type with sealing lip of fluoroplastic
    Patent number: 5009742
    Abstract: The invention relates to a sealing ring of the radial type comprising a reinforcement, a body, particularly of elastomer, and a sealing lip consisting of an annular washer, of fluoroplastic such as PTFE, made to adhere along an outside peripheral annular zone by one of its faces on an upper bearing surface of the body.The washer is subjected to a chemical attack treatment aimed at reducing its antiadhesive properties only over an outside annular peripheral zone, the radial area of the outside zone corresponding to the radial area of the upper bearing surface of the elastomer body of a ring on which the sealing lip is made to adhere.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: April 23, 1991
    Inventors: Michel Saxod, Fabrice Fougerolle
  • Radial seal rings
    Patent number: 4995621
    Abstract: A radial seal ring has a frame or reinforcement, a body of an elastomer, and a seal lip of a low friction material such as a fluorine containing resin, particularly PTFE, adhered to the body. The seal lip extends radially of the body to provide a portion unadhered to the body and which has an annular recess in the surface thereof which faces toward the body. The recess is located adjacent to a peripheral edge of the body and defines a controlled region of deflection of the lip seal. The annular recess is formed during molding by pinching a preformed disc of the lip seal between an annular rib of the mold and an opposed surface of the mold.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: February 26, 1991
    Assignee: Procal
    Inventors: Serge Devouassoux, Michel Marchiset, Michel Saxod
  • Process of molding seal rings
    Patent number: 4957680
    Abstract: The seal ring is molded by positioning a frame or reinforcement in one part of an opened mold, and positioning a low friction material disc on a clamping surface of the same part of the mold. The mold is closed with a second part so that between 30% and 70% of the disc is clamped and squeezed between opposed surfaces of the mold parts, and the reinforcement or frame is held in position in the closed mold. A vacuum is drawn in the mold, and an elastomer is injected to form a body or lip connecting the reinforcement to the disc. The molded ring is removed from the mold and excess lip material and at least the portion of the disc which was clamped are cut off to form the finished seal ring. The low friction material disc can contain PTFE.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: September 18, 1990
    Assignee: Procal
    Inventors: Michel Saxod, Serge Devouassoux, Michel Marchiset, Jean-Pierre Jaumot