Patents by Inventor Christina Steger

Christina Steger 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: 6660902
    Abstract: Absorbent article such as a diaper, pant diaper, incontinence guard, sanitary napkin, wound dressing or the like comprising a layer of continuous fibers (9), so called tow, which is bonded in points, spots or lines in a bonding pattern (10), but where the fibers otherwise are substantially unbonded to each other. The layer can either be used as a liquid acquisition layer (5) in the article under the topsheet (2), as a topsheet (12) or as a combined topsheet and liquid acquisition layer (22).
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: December 9, 2003
    Assignee: SCA Hygine Products AB
    Inventors: Urban Widlund, Christina Steger, Roy Hansson, Sofia Roxendal, Peter Wessel
  • Patent number: 6610898
    Abstract: A fluid liquid acquisition/transfer layer in an absorbent article, such as a diaper, pant diaper, incontinence guard, sanitary napkin, panty liner or the like. The fluid acquisition/transfer layer includes a mixture of heat-shrunk, spiralized, thermoplastic multicomponent, preferably bicomponent, functional fibers of 3.4 dtex or more. The components of the functional fibers each have different shrinkage properties and are located in a side-by-side relationship for creating the spiralized shape of the functional fibers. The fluid acquisition/transfer layer also includes bonding fibers that bond to each other through heat treatment while the functional fibers do not bond to each other during heat treatment.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: August 26, 2003
    Assignee: SC Hygiene Products AB
    Inventors: Ing-Britt Magnusson, Christina Steger
  • Patent number: 6557398
    Abstract: A method of measuring the liquid retention of absorbent articles (20) of the kind that includes an absorbent body having a top side which lies proximal to the wearer's skin when the article is worn, and a bottom side which is covered by a liquid-impermeable backing sheet, wherein the method comprises the steps of applying a determined amount of liquid to a region on the top side of the article, urging a pressure body (1) against a region of the top side of the article with a given force, and collecting and measuring the amount of liquid pressed out from the top side of the article. The force with which the pressure body (1) is pressed against the top side of the article, is set selectively on a device (2-4) for pressing the pressure body against the top side of the article (20), and the liquid pressed from the top side of the article is transported to a measuring vessel (15) with the aid of sub-pressure.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: May 6, 2003
    Assignee: SCA Hygiene Products AB
    Inventors: Karin Lindmark, Christina Steger, Johan Granath, Berith Porso
  • Publication number: 20020139177
    Abstract: The present invention relates to a method of measuring the liquid retention of absorbent articles (20) of the kind that includes an absorbent body having a top side which lies proximal to the wearer's skin when the article is worn, and a bottom side which is covered by a liquid-impermeable backing sheet, wherein the method comprises the steps of applying a determined amount of liquid to a region on the top side of the article, urging a pressure body (1) against a region of the top side of the article with a given force, and collecting and measuring the amount of liquid pressed out from the top side of the article. According to the invention, the force with which the pressure body (1) is pressed against the top side of the article, is set selectively on a device (2-4) for pressing the pressure body against the top side of the article (20), and the liquid pressed from the top side of the article is transported to a measuring vessel (15) with the aid of sub-pressure.
    Type: Application
    Filed: March 26, 2002
    Publication date: October 3, 2002
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Karin Lindmark, Christina Steger, Johan Granath, Berith Porso
  • Patent number: 6138500
    Abstract: The invention relates to a method of studying the liquid accommodating property of absorbent products. According to the invention, the amount of liquid received by the absorbent product from a vessel is measured continuously, by measuring the amount of liquid removed from the vessel.The invention also relates to apparatus for carrying out the method.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: October 31, 2000
    Assignee: SCA Hygiene Products AB
    Inventors: Christina Steger, Johan Granat
  • Patent number: 6037518
    Abstract: Absorbent body in an absorbent product such as a diaper, incontinence pad, sanitary napkin or the like, and which comprises a liquid acquisition portion (13; 11, 13) and a liquid storage portion (12) adjacent thereto. The liquid acquisition portion has at least one well (13) which is located at the assumed wetting area of the absorbent body and extends into and through the liquid storage portion (12) and is in liquid communication with a liquid wicking layer (14) arranged under the liquid storage layer (12). The material in the liquid acquisition portion (13; 11, 13) has a mean pore size which is greater than the mean pore size in the liquid storage portion (12). The absorbent body has a high instantaneous absorption even during repeated wetting and a low rewetting.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: March 14, 2000
    Assignee: SCA Hygiene Products AB
    Inventors: Ted Guidotti, Christina Steger, Urban Widlund, Eje Osterdahl
  • Patent number: 5961506
    Abstract: An absorbent body for use in an absorbent product such as a diaper, incontinence pad, sanitary napkin or the like and which comprises a liquid acquisition portion and a liquid storage portion adjacent thereto. The liquid acquisition portion has a cover layer which covers at least substantial portions of the liquid storage portion and at least one portion which is located at the assumed wetting area of the absorbent body and extends into the underlying liquid storage portion. The material in the liquid acquisition portion has a mean pore size which is greater than the mean pore size of the liquid storage portion. The absorbent body has a high instantaneous absorption, even upon repeated wetting and a low rewetting.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: October 5, 1999
    Assignee: Molnlycke AB
    Inventors: Ted Guidotti, Christina Steger, Urban Widlund, Eje Osterdahl
  • Patent number: 5855571
    Abstract: An absorbent structure in an absorbent article, such as a diaper, incontinence guard, sanitary napkin and the like, wherein the structure includes hydrophilic fibres and particles of a superabsorbent material and also has a front and a back part (4, 5) and a crotch part (6) located therebetween, said crotch part exhibiting a wetting region (16) within which the major part of discharged fluid is directed and wherein the absorbent structure in the wetting region includes superabsorbent particles that are encased in a material that will only dissolve slowly in and/or be penetrated slowly by the fluid to be absorbed so that the superabsorbent material will not begin to absorb fluid and swell to any appreciable extent until the encapsulating material has dissolved and/or been penetrated by the fluid and that conventional superabsorbent material (15) is localized generally in those parts of the structure that are located outside said wetting region.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: January 5, 1999
    Assignee: Molnlycke AB
    Inventors: Christina Steger, Edward Guidotti, Eje Osterdahl, Urban Widlund