Patents by Inventor Charles Brian Weinberger

Charles Brian Weinberger 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).

  • Level control of dry-jet wet spinning process
    Patent number: 3996321
    Abstract: In a process for forming fibers by extruding a spinning dope successively through a layer of inert gas and a tube immersed in a coagulating bath, the tension profile of the yarn passing through the tube is regulated by regulating the pressure of the layer inert gas. In this pressurized quench system, the coagulating liquid is maintained at a predetermined level, despite transient changes in liquid input, by passing both pressurized gas and coagulating liquid through a pipe having an opening at the level to be maintained.
    Type: Grant
    Filed: November 26, 1974
    Date of Patent: December 7, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Charles Brian Weinberger