Patents by Inventor Andre Lyonnet

Andre Lyonnet 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).

  • Process and device for producing fancy yarn
    Patent number: 4191010
    Abstract: In order to produce a fancy yarn with protuberances along its length in a simple manner, and without adding either a binding yarn or an effect yarn, a multi-filament yarn of continuous filaments is forwarded by a positive drive means and twisted and taken up by a spindle. When engaged with a surface of the drive means the yarn is engaged by an edge which brakes some of the filaments.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: March 4, 1980
    Assignees: Institut Textile de France, Agence Nationale de Valorisation de la Recherche
    Inventors: Robert Lehmann, Andre Lyonnet, Paul Rochas
  • Method of making fancy yarn and fancy yarn
    Patent number: 4095403
    Abstract: The invention relates to fancy yarns, and a method of making them, in which at least two yarns, of which one forms a core and one an effect yarn, are fed to a junction point and then fed together through a heat treatment zone and assembled into the fancy yarn in a false twisting step, the core yarn having been provided with a thermoplastic binder upstream of the junction point by which the effect yarn is adhered to the core yarn.
    Type: Grant
    Filed: April 19, 1977
    Date of Patent: June 20, 1978
    Assignees: Institut Textile de France, Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Claudius Beraud, Robert Guigal, Robert Lehmann, Andre Lyonnet