Patents by Inventor Sanh Le

Sanh Le 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: 5737815
    Abstract: A method and apparatus for maintaining a yarn take-up point stationary. A first sensor, such as an optical sensor, is positioned proximate a first location of a yarn travel path to output a first signal representative of the position of a yarn at the first location. A second sensor, such as another optical sensor, is positioned proximate a second location of the yarn travel path to output a second signal representative of the yarn at the second location. A controller controls a temperature of a fluid employed to heat the yarn. The controller receives the first signal and the second signal, which are analyzed to produce a heat control signal that is used to control the temperature of the fluid. The heated fluid is used to texturize the yarn, such that the yarn is tensioned and maintained so that a yarn take-up point is substantially stationary.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: April 14, 1998
    Assignee: Fiberco Inc.
    Inventor: Sanh Le