Patents by Inventor Thomas H. M. Terwee

Thomas H. M. Terwee 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 for the manufacture of twistless or substantially twistless yarn and the yarn obtained according to this process
    Patent number: 4395871
    Abstract: A method of manufacturing twistless or substantially twistless yarn consisting of dry drafting a sliver, moistening the drafted sliver with a water-soluble cation-active polymer bonding agent, drafting the sliver in the web state, false twisting the sliver, activating the bonding agent by drying the sliver on a heated drum and winding the resultant yarn up on cross wound cheeses, and a yarn manufactured according to this process.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: August 2, 1983
    Assignee: Chem-Y Fabriek Van Chemische Producten, BV
    Inventors: Jacob K. Smid, Thomas H. M. Terwee
  • Method for the manufacture of twistless or substantially twistless yarn
    Patent number: 4228643
    Abstract: In a method for the manufacture of twistless yarn a sliver of staple fibre material is drafted in two drafting zones, which are separated by a neutral zone. The drafting in the first zone occurs in a dry condition and in the second zone in a wet condition. The drafting liquid, which can contain a bonding agent, is supplied to the sliver through a false twister inserted in the neutral zone. This drafting process provides an increased uniformity of twistless yarn in a range of counts of 10-300 tex at a production rate of 300 to 600 m/min.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: October 21, 1980
    Assignee: Hollandse Signaalapparaten B.V.
    Inventors: Jan Nijhuis, Thomas H. M. Terwee