Patents by Inventor Roger Pidoux

Roger Pidoux 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).

  • Measuring device for thread-like test samples
    Patent number: 6499345
    Abstract: The invention relates to a measuring device for thread-like test samples (3), comprising a measuring slit (2) exhibiting measuring areas (6, 7) for measuring characteristics of a test sample which moves longitudinally, said measuring areas being associated to a measuring device. A coating (8) made of an abrasion-resistant material is applied over the whole measuring slit and its measuring areas (6, 7) in order to define more freely the dimensions of said measuring slit and especially to obtain a narrower measuring slit.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: December 31, 2002
    Assignee: Zellweger Luwa AG
    Inventors: Cyrill Bucher, Roger Pidoux
  • Method for categorizing yarn defects and cleansing yarn
    Patent number: 5537811
    Abstract: A method and apparatus for simultaneously cleansing and grading yarn produced by a spinning or spooling machine with a plurality of spindles or primary spools. One spindle processor is associated with each spindle. The spindle-processor grades in a grading plane containing a cleansing envelope. All yarn defects located outside the cleansing envelope in the grading plane are considered unacceptable defects and are excised from the yarn.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: July 23, 1996
    Assignee: Roospark Ag
    Inventors: Roger Pidoux, Peter Haldemann