Patents by Inventor Tomas Billgren

Tomas Billgren 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: 7422660
    Abstract: Method of producing a nonwoven material, includes forming a web of continuous filaments on a forming member (12) and applying a wet- or foam formed fiber dispersion containing natural fibers and/or synthetic staple fibers on top of the continuous filaments. A fibrous web is thus formed containing continuous filaments and natural fibers and/or synthetic staple fibers, this web subsequently being hydroentangled to form a nonwoven material. Moisture is applied to the web of continuous filaments under a low pressure before laying the wet- or foam formed fiber dispersion on the web of continuous filaments, avoiding any substantial bonding between the filaments in the web.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: September 9, 2008
    Assignee: SCA Hygiene Products AB
    Inventors: Tomas Billgren, Mats Soderberg, Mees Versteeg, Hein Lindstedt
  • Publication number: 20050092417
    Abstract: Method of producing a nonwoven material, includes forming a web of continuous filaments on a forming member (12) and applying a wet- or foam formed fiber dispersion containing natural fibers and/or synthetic staple fibers on top of the continuous filaments. A fibrous web is thus formed containing continuous filaments and natural fibers and/or synthetic staple fibers, this web subsequently being hydroentangled to form a nonwoven material. Moisture is applied to the web of continuous filaments under a low pressure before laying the wet- or foam formed fiber dispersion on the web of continuous filaments, avoiding any substantial bonding between the filaments in the web.
    Type: Application
    Filed: November 1, 2004
    Publication date: May 5, 2005
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Tomas Billgren, Mats Soderberg, Mees Versteeg, Hein Lindstedt
  • Publication number: 20050091811
    Abstract: Method of producing a nonwoven material, wherein a fibrous web containing continuous filaments and natural fibers and/or staple fibers is formed on a forming member (12) and subsequently hydroentangled to form the nonwoven material. The fibrous web is transferred to an entangling member (16) while subjecting the fibrous web to foreshortening and subsequently hydroentangling the foreshortened fibrous web, thus forming a composite material (19) wherein the continuous filaments are well integrated with the rest of the fibers.
    Type: Application
    Filed: November 1, 2004
    Publication date: May 5, 2005
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Tomas Billgren, Mats Soderberg, Mees Versteeg, Hein Lindstedt
  • Patent number: 5913406
    Abstract: The present invention relates to a plastic surgical coat. According to the invention, the coat is comprised at least partially of a plastic material having a pattern of projections which extend out from the inside of the coat to facilitate air circulation through a space between an interior surface of the coat and the body of the wearer.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: June 22, 1999
    Assignee: Molnlycke Health Care AB
    Inventors: Kristina Lofgren, Tomas Billgren
  • Patent number: 5871015
    Abstract: A Mayo stand cover comprises a first and a second liquid-impermeable panel (1 and 2) which are mutually joined along two opposing long edges and a side edge which extends between two opposing ends of the long edges. An absorbent material (4) extends over at least a part of the outer surface of the first panel (1). The first panel (1) includes a pattern of projections (5) formed in the panel material and projecting outwardly from the inside thereof. The pattern includes at least two discrete rows of projections which extend over the full length of the cover parallel with its long edges.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: February 16, 1999
    Assignee: Molnlycke Health Care AB
    Inventors: Kristina Lofgren, Tomas Billgren
  • Patent number: 5546960
    Abstract: The present invention relates to a surgical drape includes an absorbent sheet (1) and a fluid-impermeable sheet (2) attached thereto. According to the invention, the fluid-impermeable sheet (2) is provided with projections (3) on that side which lies distal from the absorbent sheet (1).
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: August 20, 1996
    Assignee: Molnlycke AB
    Inventor: Tomas Billgren
  • Patent number: 5353485
    Abstract: The present invention relates to a method for producing spunlace material in which there is formed a fibrous web by air-laying a layer of fibres of staple length on a forming wire and air-laying a layer of short fibres on top of the layer of staple fibres. According to the invention, the fibrous web is passed to an entangling wire 18 on which there is arranged at least one elongated element 17 whose diameter is much greater than the diameter of the wires 16 in the entangling wire 18, whereafter the fibrous web is entangled. The invention also relates to an arrangement for carrying out the method, and to a spunlace material produced in accordance with the method.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: October 11, 1994
    Assignee: Molnlycke AB
    Inventors: Tomas Billgren, Jeanette Hellstrom
  • Patent number: D287195
    Type: Grant
    Filed: March 6, 1984
    Date of Patent: December 16, 1986
    Assignee: Molnlycke Aktiebolag
    Inventor: Tomas Billgren