Patents by Inventor Berth-Ove Wall

Berth-Ove Wall 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: 6534694
    Abstract: A method of securing an elastic band between two material layers which are at least partially defined by meltable material includes forming perforations in the elastic band, placing the elastic band between two material layers, and bonding the material layers to one another through the perforations by heat fusion, wherein the perforations in the elastic band are formed at the same time as the material layers are fused together (i.e., the formation of the perforations in the elastic band is directly followed by bonding together, through the perforations, portions of the material layers). An elastic band secured between two material layers for inclusion in articles of one-time use includes the use of material layers that are at least partially defined by meltable material and an elastic band having perforations formed therein. The material layers are positioned on opposite sides of the elastic band and are joined together by heat fusion.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: March 18, 2003
    Assignee: SCA Hygiene Products Aktiebolag
    Inventors: Robert Kling, Berth-Ove Wall
  • Publication number: 20020156449
    Abstract: The present invention relates to a method of securing an elastic band (13) between two material layers (14) which consist at least partially of meltable material. According to the invention, the elastic band is provided with perforations in the form of holes and/or slots. The band is placed between the two material layers and the layers are bonded together through the perforations by melting or fusing the layers together at locations opposite the perforations. The invention also relates to an elastic band which has been affixed in this manner and to a diaper which includes such a band.
    Type: Application
    Filed: October 30, 2001
    Publication date: October 24, 2002
    Inventors: Robert Kling, Berth-Ove Wall
  • Patent number: 6340782
    Abstract: A method of securing an elastic band between two material layers which are at least partially defined by meltable material includes forming perforations in the elastic band, placing the elastic band between two material layers, and bonding the material layers to one another through the perforations by heat fusion, wherein the perforations in the elastic band are formed at the same time as the material layers are fused together (i.e., the formation of the perforations in the elastic band is directly followed by bonding together, through the perforations, portions of the material layers). An elastic band secured between two material layers for inclusion in articles of one-time use includes the use of material layers that are at least partially defined by meltable material and an elastic band having perforations formed therein. The material layers are positioned on opposite sides of the elastic band and are joined together by heat fusion in a punctiform and/or linear bonding pattern.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: January 22, 2002
    Assignee: SCA Hygiene Products Aktiebolag
    Inventors: Robert Kling, Berth-Ove Wall