Patents by Inventor William S. Sidwell

William S. Sidwell 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).

  • Yarn texturing jet
    Patent number: 4547938
    Abstract: A self-stringing jet device which is compact and easy to string up includes a body, a yarn inlet section, and a movable venturi and a cylindrical baffle located at the outlet end of the jet. The venturi may be moved from a string up position to an operating position by engaging the movable venturi located within the jet with a rotatable cam surface actuated by an external handle that can be rotated between stops, one of which is a rotatable eccentric for adjusting the operating position of the jet.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: October 22, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robert E. Cullen, Henry B. Kurowski, William S. Sidwell