Patents by Inventor Alfred H. Thompson

Alfred H. Thompson 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).

  • STAPLE FIBERS AND PROCESSES FOR MAKING SAME
    Publication number: 20090047857
    Abstract: Improved staple fibers and processes for producing them are provided. The processes are particularly useful for forming staple fibers from poly(trimethylene terephthalate), especially carpet staple fibers. The processes include prewetting undrawn yarns and drawing the fibers under wet and warm conditions, thermo-fixing the texture, and drying at relatively low temperatures. Fibers produced according to the processes disclosed herein have improved properties and reduced brittleness as compared to fibers prepared using conventional processes.
    Type: Application
    Filed: October 27, 2008
    Publication date: February 19, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Jing C. Chang, Richard Lee Dommel, Ramunas L. Valteris, Robert Mamoru Linek, Alfred H. Thompson, Nirmal K. Agarwal
  • Staple fibers and processes for making same
    Publication number: 20040146711
    Abstract: Improved staple fibers and processes for producing them are provided. The processes are particularly useful for forming staple fibers from poly(trimethylene terephthalate), especially carpet staple fibers. The processes include prewetting undrawn yarns and drawing the fibers under wet and warm conditions, thermo-fixing the texture, and drying at relatively low temperatures. Fibers produced according to the processes disclosed herein have improved properties and reduced brittleness as compared to fibers prepared using conventional processes.
    Type: Application
    Filed: December 10, 2003
    Publication date: July 29, 2004
    Inventors: Jing C. Chang, Richard Lee Dommel, Ramunas L. Valteris, Robert Mamoru Linek, Alfred H. Thompson, Nirmal K. Agarwal
  • Process for preparing nylon staple fiber
    Patent number: 5093195
    Abstract: Nylon staple fiber (and precursor continuous filaments in the form of a tow) of high load-bearing capacity is prepared by an improved process of first drawing the tow between multiple feed and draw rolls, followed by both heating and cooling the draw filaments to anneal them under a controlled tension.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: March 3, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Alfred H. Thompson, Jr.
  • Process for preparing nylon staple fiber
    Patent number: 5011645
    Abstract: Nylon staple fiber (and precursor continuous filaments in the form of a tow) of high load-bearing capacity is prepared by an improved process of first drawing the tow between multiple feed and draw rolls, followed by both heating and cooling the draw filaments to anneal them under a controlled tension.
    Type: Grant
    Filed: May 4, 1989
    Date of Patent: April 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Alfred H. Thompson, Jr.