Patents by Inventor Jean-Pierre Matthelie

Jean-Pierre Matthelie 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: 4574598
    Abstract: This invention relates to an improved device for measuring the length of yarn absorbed by a textile machine, comprising in known manner a rotating member driven by the yarn during displacement thereof. It presents three fixed guides over which the yarn passes and which are positioned near the rotating member so that the yarn is in contact with the rotating member along two substantially equal arcs of low value, for example from 20.degree. to 50.degree. and advantageously 30.degree.. The device is more particularly applicable to measuring the length of yarn absorbed per stitch on flat knitting machines.
    Type: Grant
    Filed: June 19, 1985
    Date of Patent: March 11, 1986
    Assignees: Institut Textile de France, Centexbel
    Inventor: Jean-Pierre Matthelie
  • Patent number: 4523440
    Abstract: A device for regulating the length of thread absrobed by a knitting machine and/or for correcting the variations in tension of a thread supplying a textile machine, is disclosed. The device comprises a tensioning means of any type, a drive member whose rotation results in the movement of the tension-generating member of the tensioning means, a feeler element over which the thread passes and which is moved when the length of thread absorbed and/or the tension of the thread varies and two switches, one controlling the placing in rotation of the drive member in one direction and the other the placing in rotation in the other direction. The direction of rotation of the drive member is selected so that the corelative action of the feeler corrects the variation in the length of thread absorbed and/or of the tension which is the cause of triggering this rotation.
    Type: Grant
    Filed: September 28, 1983
    Date of Patent: June 18, 1985
    Assignee: Institut Textile de France
    Inventors: Eugene J. Voisin, Jean-Pierre A. Matthelie, Jacques A. Mesny