Patents by Inventor Donald M. Sadler

Donald M. Sadler 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 and apparatus for making a pile article and the products thereof
    Patent number: 5547732
    Abstract: An elongated pile article having a support strand for attachment to a plurality of yarn bundles, the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles placed one next to the other, and a method and apparatus for making the elongated pile article.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: August 20, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Donald W. Edwards, James K. Odle, Peter Popper, Donald M. Sadler, Todd J. Savidge, Harold F. Staunton, William C. Walker, Paul W. Yngve
  • Method and apparatus for making a pile article and the products thereof
    Patent number: 5472762
    Abstract: An elongated pile article having a support strand for attachment to a plurality of yarn bundles, the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles placed one next to the other, and a method and apparatus for making the elongated pile article.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: December 5, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Donald W. Edwards, James K. Odle, Peter Popper, Donald M. Sadler, Todd J. Savidge, Harold F. Staunton, William C. Walker, Paul W. Yngve
  • Method for applying liquid to yarn
    Patent number: H153
    Abstract: A method for intermittently applying a liquid to a threadline wherein varying the amplitude of vibration of an atomizing surface of an ultrasonic vibrator is the vehicle for atomizing and propelling the liquid onto a threadline passing in close proximity to the atomizing surface.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: November 4, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Donald M. Sadler, Harold F. Staunton