Patents by Inventor Hanspeter Wepfer

Hanspeter Wepfer 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).

  • Device for measuring properties of a longitudinally moved specimen such as yarn
    Patent number: 6422072
    Abstract: The invention relates to a device for measuring properties of a longitudinally moved test material in a measuring cell. In order to provide a device which is easier to adapt to the requirements of a customer and to the special conditions of a production machine for longitudinally moved test material, the measuring cell (1) is connected to a processor (6), which is associated exclusively with the measuring cell.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: July 23, 2002
    Assignee: Zellweger Luwa AG
    Inventors: Beat Emch, Rolf Joss, Felix Brunner, Bernhard Hitlebrand, Peter Schilling, Beat Keller, Hanspeter Wepfer
  • Method and device for clearing yarns
    Patent number: 6374152
    Abstract: In a method and a device for clearing yarn, properties of the yarn are acquired and used to determine a yarn defect density profile. Yarn defects to be removed are defined by means of an adjustable clearing limit which is based on the density profile. In order to provide an optimum adjustment as frequently as possible, the clearing limit is automatically adjusted on the basis of the acquired properties in a control loop.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: April 16, 2002
    Assignee: Zellweger Luwa AG
    Inventors: Hanspeter Wepfer, Johannes Heusser, Enrico Biondi