Patents by Inventor Louis De Goncourt

Louis De Goncourt 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: 4869472
    Abstract: This invention is directed to an improved device for connecting an elastic suspension leaf arranged between a load and a carrier, particularly of a vehicle, to the walls or the like and to the chassis. The suspension leaf comprises a composite material having in its vertical plane of symmetry a thickness increasing from the chassis to the end support of the wheel, its cross-section remaining approximately constant. At least one device for connecting to the chassis includes a lower part which retains the leaf and which has a trapezoidal shape in projection in a horizontal plane and a U-shaped cross-section in a vertical plane, and a semi-cylindrical upper part possessing an axial bore which receives a shock-absorbing device for fastening the device to the assembly. The dimensions of the lower part ensure that the part fits onto the gradually varying shape portion of the leaf at the fastening points of the leaf.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: September 26, 1989
    Assignee: Bertin & Cie.
    Inventor: Louis de Goncourt
  • Patent number: 4854606
    Abstract: Suspension assembly consisting of a bearing structure capable of being fixed to the chassis of a vehicle. The structure holds the composite leaf spring in position to the ends of which the wheel supports are fixed. The supports are connected to the structure by the wishbones and the shock absorbers. Different positions of the composite leaf spring, wishbones and shock absorbers are described.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: August 8, 1989
    Assignee: Bertin & CIE
    Inventors: Louis de Goncourt, Kenneth H. Sayers
  • Patent number: 4773631
    Abstract: Mounting device for a resilient leaf made of a composite material working in flexure having in its vertical plane of symmetry and over at least a part of its length, a thickness increasing towards one of its ends, and in its horizontal plane, a width decreasing towards the same end, the thicker end having an opening capable of cooperating with mounting means, comprising at least one loop (3) formed at the thick end of the leaf and at least one supporting member (12) having an at least partially cylindrical supporting surface (6, 7) cooperating with at least a part of the faces of the loop, the generatrices of the supporting surfaces being parallel to the axis of the loop.
    Type: Grant
    Filed: July 24, 1986
    Date of Patent: September 27, 1988
    Assignee: Bertin & Cie
    Inventor: Louis De Goncourt
  • Patent number: 4667921
    Abstract: The suspension device comprises at least one suspension element formed by an elastically yieldable leaf between two rigid end portions, and four bearing means symmetrically disposed in pairs relative to the transverse axis of symmetry of the leaf on each of the sides of the suspension element.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: May 26, 1987
    Assignee: Bertin & Cie
    Inventor: Louis de Goncourt
  • Patent number: 4557500
    Abstract: A suspension consisting of an elastic leaf (17) made of a composite material, having in its plane of vertical symmetry a height which increases towards the end or ends supporting the wheels. The leaf is fixed to the chassis (21) at two points (22) which are symmetrical relative to the longitudinal axis of the vehicle. The leaf may be mounted longitudinally or transversely.The leaf may consist of fibers extending longitudinally, without being cut, from one end to the other, embedded in an appropriate binder.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: December 10, 1985
    Assignee: Bertin & Cie
    Inventors: Maurice Collard, Louis De Goncourt