Patents by Inventor John Stevens Rutter Lawrence

John Stevens Rutter Lawrence 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).

  • Beam let-off apparatus and a method for letting off filaments
    Patent number: 6216747
    Abstract: A beam let-off apparatus capable of adjusting the tension of a plurality of filaments as they are removed from a beam through the controlled movement of a pivoting arm directed by the tension of the unwinding filaments, comprises a frame, a driven roll, 1-3 idler rolls on the frame and a dancer roll mounted on pivoting arms mounted on the frame wherein the filaments pass under and around the dancer roll through a defined wrap angle is provided.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: April 17, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: John Stevens Rutter Lawrence