Patents by Inventor Christian Bru

Christian Bru 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).

  • False-twist apparatus
    Patent number: 4332132
    Abstract: The invention concerns a false-twist texturizing machine of the type in which the heater, the cooling zone and the false-twist spindle are in substantially straight alignment and arranged at least in part above the service zone. The machine of the invention is characterized by the fact that the heating device, arranged upstream of the spindle at the upper part of the machine, is an open heater and that the machine includes means for lacing up and guiding the yarn between the first yarn feeder and the entry point of the heating device.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: June 1, 1982
    Assignee: ASA S.A.
    Inventors: Christian Bru, Jean-Claude Dupeuble
  • Friction disc for false twisting
    Patent number: 4159621
    Abstract: A friction disc for use in false twisting has a convex, yarn contacting, peripheral surface and a recess on one or both faces adjacent the periphery, there being a sharp edge between the peripheral surface and recess.
    Type: Grant
    Filed: May 23, 1978
    Date of Patent: July 3, 1979
    Assignee: ASA S.A.
    Inventor: Christian Bru