Patents by Inventor Charles Shimalla

Charles Shimalla 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).

  • Apparatus for producing an apertured plastic film having a tricot texture
    Patent number: 5824352
    Abstract: An apparatus for producing an apertured plastic film having a tricot-like texture. The apparatus includes a film forming member comprising a rotatable hollow drum having a pattern of apertures and a topographical outer surface formed by a cluster of peaks and valleys surrounding each aperture. A plastic film is placed on the apices of the peaks and fluid streams are projected against the film while the drum is rotated. The fluid forces the film against the topographical outer surface of the drum causing the film to become apertured and to have a tricot-like texture corresponding to the pattern of apertures and peaks and valleys.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: October 20, 1998
    Assignee: McNeil-PPC, Inc.
    Inventors: Ching-Yun Morris Yang, Charles Shimalla, Mordechai Turi
  • Tricot nonwoven fabric
    Patent number: 5670234
    Abstract: A nonwoven fabric of entangled fibers defining a predetermined pattern of openings with the fabric having excellent draping characteristics.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: September 23, 1997
    Assignee: McNeil-PPC, Inc.
    Inventors: Susan Lynn Suehr, William F. Kelly, Charles Shimalla, Frank J. Flesch, James E. Knox