Patents Assigned to Societe des Etablissements Thimon
  • Apparatus for obtaining differential tangential variable speeds at different points of a deformable film
    Patent number: 5310106
    Abstract: This device is designed such that the differential tangential speeds V are variable at different points of a deformable flat film (1) or plate that moves along at least one drawing roller (3) rotating about an axis XX, said film (1) or plate moving in a direction perpendicular to the axis of rotation of the roller and resting on a generatrix G.sub.N of the roller. The roller (3) has a rotational speed N which is constant with time, while the distance G.sub.N C.sub.1 from the supporting generatrix G.sub.N of the film to the axis C.sub.1 of rotation of the roller is variable with time. The invention is applicable to the drawing of plastic films.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: May 10, 1994
    Assignee: Societe des Etablissements Thimon
    Inventors: Hubert Thimon, Paul Jacquier
  • Apparatus for obtaining differential tangential variable speeds at different points of a deformable film
    Patent number: 5000364
    Abstract: The invention relates to a drawing device. This device is designed such that the differential tangential speeds V are variable at different points of a deformable flat film (1) or plate that moves along at least one drawing roller (3) rotating about an axis XX, said film (1) or plate moving in a direction perpendicular to the axis of rotation of the roller and resting on a generatrix G.sub.N of the roller. The roller (3) has a rotational speed N which is constant with time, while the distance G.sub.N C.sub.1 from the supporting generatrix G.sub.N of the film to the axis C.sub.1 of rotation of the roller is variable with time. The invention is applicable to the drawing of plastic films.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: March 19, 1991
    Assignee: Societe des Etablissements Thimon
    Inventors: Hubert Thimon, Paul Jacquier