Patents by Inventor Ann L. McCormack

Ann L. McCormack 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).

  • Patent number: 5328759
    Abstract: Disclosed is a process of making an superabsorbent composite material which contains a hydraulically-needled fibrous web and superabsorbent materials. The method includes the steps of providing a nonwoven fibrous web; hydraulically needling the nonwoven web to enhance its liquid distribution properties; and introducing dry superabsorbent materials into intimate bonding contact with at least one surface of the hydraulically needled fibrous web. Also disclosed is the superabsorbent nonwoven composite material made by the described process. The hydraulically needled fibrous web component of the material may contain pulp fibers, synthetic fibers, natural fibers, bicomponent fibers, continuous filaments or mixtures thereof. The superabsorbent composite material has a saturation capacity greater than about 500 percent and a wicking rate greater than about 12 centimeters per 15 minutes. The superabsorbent composite material may be used as a liquid management material in an absorbent product or absorbent structure.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: July 12, 1994
    Assignee: Kimberly-Clark Corporation
    Inventors: Ann L. McCormack, Fred R. Radwanski, Cherie H. Everhart
  • Patent number: 5192606
    Abstract: A distinctive absorbent article includes a backsheet layer which has a width dimension and a length dimension, and which includes a front waistband section, a back waistband section, and an intermediate section interconnecting the front and back waistband sections. An absorbent body is superposed on the backsheet layer, and an intermediate transfer layer, which is liquid permeable, is disposed in facing relation with the absorbent body to generally sandwich the absorbent body between the backsheet and transfer layer. The transfer layer has an appointed bodyside, inner surface, and a bodyside liner layer is located on the inner surface of the transfer layer. The bodyside liner comprises a bonded carded web which has a basis weight within the range of about 15-40 gsm and is composed of bicomponent fibers having a fiber denier within the range of about 1.0-3.0 dpf. The bodyside liner is constructed to provide for a Penetration rate index of at least about 1.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: March 9, 1993
    Assignee: Kimberly-Clark Corporation
    Inventors: Deborah L. Proxmire, Wanda W. Jackson, Nancy D. Kollin, Tamara L. Mace, Ann L. McCormack, Daniel R. Schlinz
  • Patent number: 5137600
    Abstract: A hydraulically needled nonwoven pulp fiber web is disclosed. This nonwoven pulp fiber web has a mean flow pore size ranging from about 18 to about 100 microns, and a Frazier porosity of at least about 100 cfm/ft.sup.2. The web may also be characterized by a specific volume ranging from about 8 to about 15 cm.sup.3 /g. The nonwoven pulp fiber web may contain a significant proportion of low-average fiber length pulp and still have a total absorptive capacity greater than about 500 percent and a wicking rate greater than about 2 centimeters per 15 seconds. The hydraulically needled nonwoven pulp fiber web may be used as a hand towel, wipe, or as a fluid distribution material in an absorbent personal care product. Also disclosed is a method of making the hydraulically needled nonwoven pulp fiber web.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: August 11, 1992
    Assignee: Kimberley-Clark Corporation
    Inventors: Harold K. Barnes, Ronald F. Cook, Cherie H. Everhart, Ann L. McCormack, Fred R. Radwanski, Paulette M. Rosch, Adrian J. Trevisan