Patents Represented by Attorney C. Wayne Stephens

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  • Air gage spinning process
    Patent number: 4078034
    Abstract: The strength of aromatic polyamide filaments spun at high speed downwardly through a non-coagulating fluid into a liquid coagulating bath and subsequently through a spin tube containing the freshly spun filaments and coagulating liquid is improved when the filaments are abruptly deflected away from the walls of the spin tube a distance of 0.025 to 0.15 times the inside diameter of the spin tube.
    Type: Grant
    Filed: December 21, 1976
    Date of Patent: March 7, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gary Brett Lewis