Patents by Inventor Daniel E. McMenamin

Daniel E. McMenamin 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).

  • Method for producing multicomponent polymer fibers
    Patent number: 5227109
    Abstract: A method of forming bicomponent fibers in a sheath-core relationship in a spinning pack that incorporates a plurality of adjacent plates that define predetermined flow paths therein for a sheath component and a core component to direct the respective components into the sheath-core relationship. The method comprises maintaining the differential pressure in the spinning pack between the sheath component and the core component low enough to avoid leaks and doglegging, while maintaining the total spinning pack pressure low enough to prevent leaks and doglegging.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: July 13, 1993
    Assignee: Wellman, Inc.
    Inventors: Harry Allen, III, Daniel E. McMenamin, Hubert J. Booth