Patents by Inventor John Thomas Ulman

John Thomas Ulman 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 making three-dimensional fabrics
    Patent number: 5665396
    Abstract: A method of manufacturing a three-dimensional fabric of the type which may be used in absorbent garments, dressings or the like involves the use of an apertured collector element which has a predetermined three-dimensional shape. The method involves positioning material adjacent to one side of the apertured collector element and developing a pressure differential between the one side of the apertured collector element and a second, opposite side to force the fabric material against the apertured collector element. The material, which has conformed to the shape of the collector element, is then solidified into its intended three-dimensional shape.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: September 9, 1997
    Assignee: McNeil-PPC, Inc.
    Inventor: John Thomas Ulman