Patents by Inventor Frederik Jan Groot

Frederik Jan Groot 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).

  • Apparatus for high speed beaming of elastomeric yarns
    Patent number: 6126102
    Abstract: A beaming apparatus that includes a creel and warper head, the creel being positioned adjacent to the warper head, the creel having elastomeric yarn unwinder assemblies which include a guide support that supports rotating guides and stationary wound cakes of elastomeric yarn, a thread guide for orienting the unwound yarn towards the warper head, a front guide and tension bar positioned near the end of the creel, and a pivoting reed positioned before the warper head for orienting the yarn onto a beam are provided.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: October 3, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jacek Zygmunt Mycielski, Gerardus van den Hoven, Frederik Jan Groot, Johannes Leonardus Jozefus Brouwers