Patents Assigned to Tetras
  • Picture taking assembly for copier apparatus
    Patent number: 4634256
    Abstract: Assembly for taking pictures in copiers comprising illuminating tubes, an optics and devices for driving in translational movement the original document in sheets for taking picture, line by line, wherein a light-proof housing disposed in the body of the copier comprises in the center, an assembly of optical fibres disposed along the length of the line, and on each side, an illuminating tubular assembly and a driving roller.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: January 6, 1987
    Assignee: Tetras
    Inventor: Jean-Claude Berger
  • Belt-holder drawer for photoreceptor belt for copier apparatus
    Patent number: 4626095
    Abstract: Photoreceptor belt-holder drawer for a copier apparatus comprising at least two cylinders having substantially parallel axes, at least one of the cylinders having a slight conicity and a bearing flange on its side having the smaller diameter and at least one other cylinder, called the tension cylinder, movably mounted and urged to provide tension to the belt.Application to electrostatic copying.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: December 2, 1986
    Assignee: Tetras
    Inventor: Jean-Claude Berger