Patents by Inventor Donald T. Ziesel

Donald T. Ziesel 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 of making a bonded batt with low fiber leakage
    Patent number: 5225242
    Abstract: Improved polyester fiberfill batts for apparel and other uses are prepared of polyester fiber and binder fiber, sprayed with a soft resin by oven bonding and hot roll treatment. This provides bonded batting which is characterized by softness and drapability, good insulating performance, low levels of fiber leakage or percolation through shell fabrics, enhanced durability when laundered by washing/drying or by dry cleaning, and enhanced structural integrity whereby it hangs freely without the need for quilting into small size panels.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: July 6, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Michael S. Frankosky, Wo K. Kwok, Donald T. Ziesel