Patents by Inventor Alan D. Kennedy

Alan D. Kennedy 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 measuring micro structures, anisotropy and birefringence in polymers using laser scattered light
    Patent number: 6097488
    Abstract: A method and apparatus for measuring microstructures, anistropy and birefringence in polymers using laser scattered light includes a laser which provides a beam that can be conditioned and is directed at a fiber or film which causes the beam to scatter. Backscatter light is received and processed with detectors and beam splitters to obtain data. The data is directed to a computer where it is processed to obtain information about the fiber or film, such as the birefringence and diameter. This information provides a basis for modifications to the production process to enhance the process.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: August 1, 2000
    Assignee: Princeton University
    Inventors: Boris Grek, Joseph Bartolick, Alan D. Kennedy
  • Annealed polyester filaments and a process for making them
    Patent number: 4704329
    Abstract: A process for annealing drawn polyester filaments with saturated steam of at least about 150 psig provides products with a novel fine structure that results in an improved balance of strength, dyeability, shrinkage, crimpability and trimer in the product.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: November 3, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jack A. Hancock, Walter D. Johnson, Alan D. Kennedy
  • Process of making crimped, annealed polyester filaments
    Patent number: 4639347
    Abstract: A process for annealing drawn polyester filaments with saturated steam of at least about 150 psig provides products with a novel fine structure that results in an improved balance of strength, dyeability, shrinkage, crimpability and trimer in the product.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: January 27, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jack A. Hancock, Walter D. Johnson, Alan D. Kennedy