Patents Assigned to Trefimetaux
  • Method for continuously measuring the annealing level on wires or strips
    Patent number: 4061508
    Abstract: In a method and apparatus for continuously measuring the annealing level on wires or strips, a wire or strip is passed, in a continuous feed, over a pulley of small diameter, at a tension less than that corresponding to the elastic limit of the material of which the wire or strip is made, so as to produce permanent elongation of 0.1 to 1%, this elongation being taken as a measurement of the annealing level, and utilized to control the annealing level.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: December 6, 1977
    Assignee: Trefimetaux
    Inventor: Marc Moreau
  • Apparatus for continuous extrusion
    Patent number: 4041745
    Abstract: A method and apparatus for extruding an object of undefined length capable of plastic deformation into another object of undefined length and smaller section, using the driving forces and the pressure developed in a viscous fluid surrounding the first object by the movement of a mobile member provided with a groove in its surface, the groove defining, together with the surface of a stationary member, a passage along which the first object is displaced towards a die by the action of the forces developed in the fluid by the mobile member.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: August 16, 1977
    Assignee: Trefimetaux
    Inventor: Marc Moreau
  • Device for continuous extrusion
    Patent number: 4027514
    Abstract: A device for the continuous extrusion of an object of indefinite length into another object of indefinite length by means of movable elements which move inside a resistant body forming a continuous pressure cylinder inside which the object to be extruded is driven towards a die by means of a viscous fluid surrounding it.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: June 7, 1977
    Assignee: Trefimetaux
    Inventor: Marc Moreau