Patents by Inventor Clarke R. Broaddus

Clarke R. Broaddus 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).

  • Batts and articles of new polyester fiberfill
    Patent number: 5104725
    Abstract: Batts and filled articles of polyester fiberfill of round peripheral cross-section, but containing voids arranged peripherally around an axial void, and preferably seven such voids in a hexagonal packing arrangement.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: April 14, 1992
    Assignee: E. I. DuPont de Nemours and Company
    Inventor: Clarke R. Broaddus, deceased
  • Seven hole spinneret
    Patent number: 4836763
    Abstract: Segmented spinning capillaries for post-coalescent spinning provide the capability to spin round cross-section filaments with round continuous voids along the length of the filaments by adding an inner arcuate slot at the base of each spoke of each slot segment.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: June 6, 1989
    Assignee: E. I. DuPont De Nemours and Company
    Inventor: Clarke R. Broaddus
  • Coated crimper rolls
    Patent number: 4730371
    Abstract: A stuffer box crimper wherein the crimper roll surfaces comprise a hard wear resistant coating between opposite edge portions of the parent metal of the roll.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: March 15, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Clarke R. Broaddus
  • Apparatus for quenching melt sprun filaments
    Patent number: 4712988
    Abstract: An apparatus for radially quenching melt spun filaments features a quenching chamber having a foraminous distribution cylinder between the filaments and the gas supply chamber with areas of decreasing porosity from a location immediately below the spinneret toward the exit of the quench chamber.
    Type: Grant
    Filed: February 27, 1987
    Date of Patent: December 15, 1987
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Clarke R. Broaddus, Bradley J. Gollhardt