Patents by Inventor Martin D. LeVan

Martin D. LeVan 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).

  • Making new stretchable batts
    Patent number: 4999232
    Abstract: Improved stretchable battings of differentially-shrinkable bicomponent staple fibers are obtained by cross-lapping webs, e.g. from cards, garnets or the like machines, at an angle that determines and controls the degrees of stretch in the machine direction (MD) and cross direction (XD), and then inducing helical crimp in the bicomponent fibers on account of their differential shrinkage. Such batts are especially useful in apparel.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: March 12, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Martin D. LeVan
  • Bonded polyester fiberfill batts
    Patent number: 4869771
    Abstract: An improved bonded polyester fiberfill batt, characterized by a lower inclination to leak fibers through a shell fabric, made by using a blend of binder fiber with binder-compatible fiberfill of low denier for the outer covering of the batt, and spraying thereon a resin-bonding agent, and effecting bonding of both binder fiber and bonding agent to form a sealed outer surface.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: September 26, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Martin D. LeVan