Patents by Inventor Michel Ray

Michel Ray 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: 4191489
    Abstract: In order to improve load tranfers between concrete slabs in zones at which joints are provided between said slabs, an elongated connection member, formed in one piece is fitted in the joint over at least part of the height of the slabs, which connection member is substantially cylindrical, adapted to be deformed over its entire length by compression or by expansion in at least one direction of deformation perpendicular to its axis. The connection member is placed astride the location of the joint with its axis situated substantially in the plane of the joint. The opposite portions, located on either sides of the plane of the joint, of the peripheral surface of the connection member are adhesively connected to the surfaces of the slabs with which they are in contact so as to prevent any relative movement between the contacting portions of the connection member and of the slabs.
    Type: Grant
    Filed: November 1, 1978
    Date of Patent: March 4, 1980
    Assignee: Etat Francais Represente par le Ministere de l'Environment et du Cadre de Vie Laboratorie Central des Ponts et Chaussees
    Inventors: Michel Ray, Jean L. Nissoux