Patents by Inventor Roland Pfeifer

Roland Pfeifer 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: 6458115
    Abstract: A method and apparatus for maintaining a fastening tab (20) of a hook and loop fastener system in a storage position on an article, such as a disposable diaper (10). The fastening tab (20) has a first end portion (122) for permanent attachment to the article and a distal end portion (126) provided with projecting hook members (30). The distal end portion (126), in a ready position of the fastening tab, stands free from the article. The distal end portion, in the storage position, contacts a surface of the article. The method includes the steps of attaching the first end portion (122) of the fastening tab (20) to the article, and folding the distal end portion (126) of the fastening tab over the first end portion (122) of the tab such that the hook members (30) contact the surface of the article.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: October 1, 2002
    Assignee: SCA Hygiene Products AB
    Inventors: Bengt Lindqvist, Roland Pfeifer
  • 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