Patents by Inventor Clas Olsen

Clas Olsen 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: 6066121
    Abstract: A liquid-absorbent article to be worn by a user and comprising a substantially longitudinal absorption body (1) and a cover (2) enclosing the same. On a first side, facing the user in an in-use position, the cover displays a liquid pervious first cover-sheet (3) and on a second side, facing away from the user in an in-use position, the cover displays a second cover-sheet (4). On said first side is provided longitudinal liquid barrier means (17, 18) folded into tunnel shape, forming a channel (17', 18') with a longitudinal tunnel wall (17", 18"). Said folded portions enclose longitudinal means (24, 25) with an elastically resilient supporting action acting in all directions transverse to the longitudinal direction of the article against the tunnel wall (17", 18") of the folded portion.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: May 23, 2000
    Assignee: SCA Hygiene Products AB
    Inventors: Bengt Lindquist, Clas Olsen
  • Patent number: 5688257
    Abstract: A tampon (8) includes an absorbent body (2) which is embraced by a fluid-permeable casing (4) of thermoplastic non-woven material. A withdrawal string (7) attached to the absorbent body (2) exits centrally from one end surface (10) of the tampon. The casing material (4) is heat-sealed at least at the central part of the end surface (10), by pressing a mandrel (9) against the end (10) of the tampon, so as to coalesce the thermoplastic material to an essentially fluid-impervious film (11). This improves the protection of the tampon against leakage and also increases the stability of the tampon.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: November 18, 1997
    Assignee: Molnlycke AB
    Inventor: Clas Olsen