Patents by Inventor Joakim Berntsson

Joakim Berntsson 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).

  • Diapers with elasticized crotch and end regions and a process and apparatus for the continuous manufacture thereof
    Patent number: 5779689
    Abstract: A disposable diaper comprises a liquid-impervious outer sheet (2), defining a narrower crotch region (27) between two wider end or belt regions (28, 29), an absorbent pad (22), fastening members (24) for closing the diapers, and elastic members (4) attached under tension to the impervious sheet (2) on both sides of the absorbent pad (22), substantially over the whole length of the impervious sheet, with a higher tension in the crotch region (27) than in the end regions (28, 29), having, in the two end regions (28, 29), sections (4c) converging in the direction of the transverse edges of the impervious sheet, so that the elastic members (4) form an elastic barrier which practically surrounds the absorbent pad (22) and provide the impervious sheet both with a lengthwise elasticity in the crotch region and a transverse elasticity in the end regions.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: July 14, 1998
    Assignee: Peaudouce
    Inventors: Roland Pfeifer, Joakim Berntsson