Patents by Inventor Warren H. D. Schmidt

Warren H. D. Schmidt 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: 3945815
    Abstract: An apparatus is described for drawing at least one and preferably a multiplicity of continuous fibers through a drawing funnel. The drawing funnel is positioned with its inlet at a predetermined distance from the source from which monofilament is to be drawn. The funnel is provided with an aerodynamically smoothly converging inlet on an upstream section thereof. This converging inlet accelerates the flow of fluid, preferably air or other gaseous medium, and creates laminar flow of that fluid. Means are provided to establish a pressure differential over the length of the funnel and cause the fluid flow through the funnel. Laminar flow is utilized in the converging inlet and preferably over the length of the drawing funnel, to inhibit physical damage to the continuous fiber. The funnel inlet is located to insure that the fiber is fully solidified or finished, before a pulling force is exerted thereon.
    Type: Grant
    Filed: August 15, 1974
    Date of Patent: March 23, 1976
    Assignee: Fiberglas Canada Limited
    Inventor: Warren H. D. Schmidt