Patents by Inventor William C. Dodson, Jr.

William C. Dodson, Jr. 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).

  • Air flow control apparatus for a fiber air-lay machine
    Patent number: 4489462
    Abstract: An apparatus is disclosed for high speed production of uniform webs by air-laydown of textile fibers. A feed batt of staple fibers is fed to a toothed disperser roll that projects the fibers at high velocity and low angle into an airstream of high uniform velocity and low turbulence to form a thin fiber stream from which the fibers are subsequently separated on a moving screen in the form of a web. Air flow control means upstream of the toothed dispenser roll deflects the air stream at a constantly varying angle of deflection to improve fiber laydown uniformity.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: December 25, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: William C. Dodson, Jr.