Patents by Inventor Teddy H. Grandstaff

Teddy H. Grandstaff 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 determining level of finish and control thereof
    Patent number: 4660147
    Abstract: A method of controlling the flow of finish to a moving synthetic fibrous tow involves continuous non-contact monitoring of electrostatic voltage (ESV), tow speed and temperature by appropriate sensors which are interfaced with a computer that provides continuous computation of percent finish on the tow. Out of limit signals are relayed to the point of finish application to adjust the amount of finish being applied to the tow.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: April 21, 1987
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: John L. Allen, Jr., Teddy H. Grandstaff