Patents by Inventor Lucas Bäck

Lucas Bäck 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: 9220639
    Abstract: A pant-type article having a boxer-short configuration. The article includes first and second panels which are joined via a crotch region joining. Folding and inverting the panels, and sealing along side-seams and inner legs seams provides a boxer-short. Methods for manufacturing the pant-type article are also provided. The pant-type article can be manufactured in a continuous side-by-side fashion.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: December 29, 2015
    Assignee: SCA HYGIENE PRODUCTS AB
    Inventor: Lucas Bäck
  • Publication number: 20150328056
    Abstract: An elastic laminate including a first nonwoven layer, a second nonwoven layer, and a plurality of elastic strands arranged in parallel with one another between said first and second nonwoven layers is disclosed, as well as a process for the production of the laminate. The elastic laminate includes elastic strands that are stretched and individually coated with an adhesive. The first and second nonwoven layers are attached to the stretched elastic strands to provide a corrugated elastic laminate when the elastic strands are relaxed. At least one of the nonwoven layers is attached to the strands at distinct adhesive bonding points in a repeating predetermined pattern in a lengthwise direction along the strands to form a predetermined corrugation pattern, and the nonwoven layers are substantially free of adhesive, except in the adhesive bonding points where the layers are attached to the elastic strands.
    Type: Application
    Filed: December 21, 2012
    Publication date: November 19, 2015
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Hans EEN, Lucas BÄCK, Inge GABRIELII
  • Publication number: 20150181947
    Abstract: A pant-includes front part, a back part and a crotch part, a waist portion and a pair of leg openings. The pant further includes a suspending member formed of elastic material and comprising zones of different elasticity. A first elastic zone having a relatively higher elongation is provided in a longitudinally extending central region of the crotch part, and a pair of second elastic zones having a relatively lower elongation extend along both sides of the first elastic zone at or close to the leg openings in the crotch part. The first and second elastic zones extend to the front part with the second elastic zones extending along both sides of the first zone.
    Type: Application
    Filed: March 30, 2012
    Publication date: July 2, 2015
    Applicant: SCA Hygiene Products AB
    Inventors: Lucas Bäck, Joshua Carney, Kent Vartiainen, Kresten Karlsen
  • Patent number: 8992496
    Abstract: An absorbent article having a waistband which is attached to first and second body portions of the article. The first body portion is attached to the waistband by at least a fastening means wherein the article assumes a pant diaper form. The waistband has a reception surface and a perforation. The perforation allows the reception surface to be separated into first and second belt portions. At least a part of the reception surface is located on each belt portion, thereby allowing the article to assume a belt diaper form. The first belt portion comprises at least one fastening means. The second fastening means is arranged so that the absorbent article can be readily converted from a pant diaper form to a belt diaper form.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: March 31, 2015
    Assignee: SCA Hygiene Products AB
    Inventor: Lucas Bäck
  • Publication number: 20140303587
    Abstract: A method of manufacturing absorbent articles includes feeding a longitudinal web of web material having openings such that spaced apart, opposing margins of web material are formed between the respective opening and opposing longitudinal edges of the web material; carrying out a folding action of folding the web about itself along its longitudinal direction; carrying out a second folding action of folding at least a portion of the web along its longitudinal direction; after the second folding action, forming a joint in the web, the joint being formed at least in a part of the region in which the opposing margins have been brought together by the second folding action; finally separating the web through the joint to separate an individual absorbent article from the end of the web.
    Type: Application
    Filed: June 19, 2014
    Publication date: October 9, 2014
    Applicant: SCA Hygiene Products AB
    Inventors: Lucas BÄCK, Lennart Nilsson
  • Patent number: 8815037
    Abstract: A method of manufacturing absorbent articles (9) includes feeding a longitudinal web (1) of web material having openings (16) such that spaced apart, opposing margins (18) of web material are formed between the respective opening and opposing longitudinal edges of the web material; carrying out a folding action (20) of folding the web about itself along its longitudinal direction; carrying out a second (30) folding action of folding at least a portion of the web along its longitudinal direction; after the second folding action, forming a joint (46) in the web, the joint being formed at least in a part of the region in which the opposing margins have been brought together by the second folding action; finally separating (8) the web through the joint to separate an individual absorbent article from the end of the web.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: August 26, 2014
    Assignee: SCA Hygiene Products AB
    Inventors: Lucas Bäck, Lennart Nilsson
  • Patent number: 8764926
    Abstract: A method for manufacturing elasticated webs including discontinous elastic threads, and methods for manufacturing articles from such elasticated webs. Apparatus for carrying out the methods. Further, elasticated webs and articles which can be manufactured using the methods.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: July 1, 2014
    Assignee: SCA Hygiene Products AB
    Inventor: Lucas Bäck
  • Patent number: 8764927
    Abstract: A method for manufacturing elasticated webs including discontinous elastic threads, and methods for manufacturing articles from such elasticated webs. Apparatus for carrying out the methods. Further, elasticated webs and articles which can be manufactured using the methods.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: July 1, 2014
    Assignee: SCA Hygiene Products AB
    Inventor: Lucas Bäck
  • Publication number: 20130281958
    Abstract: An absorbent pant article in the form of boxer shorts includes a garment shell including a front body panel, a back body panel and a crotch panel made of elastic web material. The pant also includes an absorbent core, side seams connecting the front body panel to the back body panel, a pair of leg openings and hanging legs. The leg openings are located in the crotch panel and do not extend into the front and back body panels, and side seams extend into the crotch panel. The width of the crotch panel in a relaxed condition of the elastic web material, as measured between the side seams of the article, is at least 7% larger than the width of any of the front and back body panels in a relaxed condition of the respective elastic web material.
    Type: Application
    Filed: December 20, 2010
    Publication date: October 24, 2013
    Applicant: SCA Hygiene Products AB
    Inventors: Lucas Bäck, Tony Karlsson, Lennart Nilsson
  • Publication number: 20130184670
    Abstract: A method for producing an elasticated chassis web for use as a continuous and coherent layer in a disposable garment, including attaching continuous elastic elements (10,11) to a continuous base web (1) along regularly undulating wave-shaped curves (12,13) and cutting out pieces (21) in crotch segments (4) of the continuous base web (1) in order to remove selected parts of the elastic elements (10,11) from the base web (1). A disposable garment made from the elasticated chassis web includes a chassis layer (56) having a hole (69) in a garment crotch portion (43).
    Type: Application
    Filed: October 18, 2010
    Publication date: July 18, 2013
    Applicant: SCA Hygiene Products AB
    Inventors: Lucas Bäck, Lennart Nilsson
  • Patent number: 8475428
    Abstract: A belted absorbent article includes an absorbent structure extending about a first longitudinal axis, the absorbent structure including a topsheet, a backsheet and an absorbent batt disposed between the topsheet and the backsheet, the absorbent structure having a transverse axis dividing the absorbent structure into a front panel terminating in a front end region and a rear panel terminating in a rear end region, the absorbent structure being delimited by opposed longitudinal edges and opposed transverse edges, and a pair of opposed belt halves including nonwoven material attached to the absorbent structure at the rear end region of the rear panel, each of the belt halves being attached by a respective joint, each belt half extending about a longitudinal axis of the belt such that each belt half extends outwardly from a respective longitudinal edge of the absorbent structure.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: July 2, 2013
    Assignee: SCA Hygiene Products AB
    Inventors: Christian Almberg, Lucas Bäck
  • Patent number: 8444619
    Abstract: A belted absorbent article (10) having an absorbent structure (16) and a pair of opposed belt halves (12, 14) attached to the absorbent structure (16) via a respective joint (50). The joint (50) between each belt half (12, 14) and the absorbent structure (16) is designed such that when each belt half is subjected to a tension force of 35 N acting along the belt half and the direction of applied tension creates an angle (?) to the transverse axis (T) of the absorbent structure, the following minimum average release times (t) of each belt half from the absorbent structure are attained: when ?=10°, t>>720 seconds; when ?=20°, t>>330 seconds; when ?=25°, t>>240 seconds; when ?=30°, t>>180 seconds; and when ?=40°, t>>75 seconds.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: May 21, 2013
    Assignee: SCA Hygiene Products AB
    Inventors: Christian Almberg, Lucas Bäck
  • Patent number: 8439813
    Abstract: A method of manufacturing a top sheet material or back sheet material for use in the manufacture of disposable absorbent articles including the steps of: a) splitting a continuous first web of sheet material having substantially straight side edges into a second and third continuous web by an alternating concave-convex cutting line cut in a longitudinal direction along the continuous first web, the cutting line being distanced from both side edges of the continuous first web; b) shifting the second continuous web in a lateral direction in relation to the third continuous web so that the substantially straight edges of the second and third continuous webs are parallel to and adjacent to each other and longitudinally shifting the second continuous web so that the series of concave edge portions and the series of convex edge portions of the second and third continuous webs are longitudinally aligned with each other; c) directly or indirectly joining the substantially straight edges of the second and third contin
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: May 14, 2013
    Assignee: SCA Hygiene Products AB
    Inventors: Lucas Bäck, Ulrika Carlson
  • Patent number: 8430858
    Abstract: An absorbent article having a waistband which is attached to first and second body portions of the article. The first body portion is attached to the waistband by at least a fastening means wherein the article assumes a pant diaper form. The waistband has a reception surface and a perforation. The perforation allows the reception surface to be separated into first and second belt portions. At least a part of the reception surface is located on each belt portion, thereby allowing the article to assume a belt diaper form. The first belt portion comprises at least one fastening means. The second fastening means is arranged so that the absorbent article can be readily converted from a pant diaper form to a belt diaper form.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: April 30, 2013
    Assignee: SCA Hygiene Products AB
    Inventor: Lucas Bäck
  • Patent number: 8353889
    Abstract: A hygienic article having side panels extending outward in a lateral direction from either of said front or back waist region. Each side panel comprises at least two material segments which are connected to each other by a lap seam wherein said material segments define a distal segment and a proximal segment in the lateral direction. On the distal edge of each side panel a fastening member is placed which is capable of securing said side panels to the front or back waist region such that the hygienic article assumes a pant like shape. The material segments which form the side panels are attached to each other by the lap seam in such a way that when the side panels are folded back towards the longitudinal centerline of the hygienic article, the materials are attached to each other in the lap seam such that the most distal material segment is placed closer towards the inner or outer surface of the hygienic article than the more proximal material segment attached to said most distal segment.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: January 15, 2013
    Assignee: SCA Hygiene Products AB
    Inventors: Lucas Bäck, Paulina Halleröd (neé Ljungberg)
  • Publication number: 20120324633
    Abstract: A method of manufacturing absorbent articles (9) includes feeding a longitudinal web (1) of web material having openings (16) such that spaced apart, opposing margins (18) of web material are formed between the respective opening and opposing longitudinal edges of the web material; carrying out a folding action (20) of folding the web about itself along its longitudinal direction; carrying out a second (30) folding action of folding at least a portion of the web along its longitudinal direction; after the second folding action, forming a joint (46) in the web, the joint being formed at least in a part of the region in which the opposing margins have been brought together by the second folding action; finally separating (8) the web through the joint to separate an individual absorbent article from the end of the web.
    Type: Application
    Filed: February 16, 2010
    Publication date: December 27, 2012
    Applicant: SCA Hygiene Products AB
    Inventors: Lucas Bäck, Lennart Nilsson
  • Publication number: 20120232507
    Abstract: A belted absorbent article includes an absorbent structure extending about a first longitudinal axis, the absorbent structure including a topsheet, a backsheet and an absorbent batt disposed between the topsheet and the backsheet, the absorbent structure having a transverse axis dividing the absorbent structure into a front panel terminating in a front end region and a rear panel terminating in a rear end region, the absorbent structure being delimited by opposed longitudinal edges and opposed transverse edges, and a pair of opposed belt halves including nonwoven material attached to the absorbent structure at the rear end region of the rear panel, each of the belt halves being attached by a respective joint, each belt half extending about a longitudinal axis of the belt such that each belt half extends outwardly from a respective longitudinal edge of the absorbent structure.
    Type: Application
    Filed: May 15, 2012
    Publication date: September 13, 2012
    Applicant: SCA Hygiene Products AB
    Inventors: Christian ALMBERG, Lucas Bäck
  • Patent number: 8197458
    Abstract: A seam joining together at least two web materials in an overlapped manner, wherein the overlapped portions are bonded together by ultrasonic welding, heat bonding, laser welding or the like, in a bonding pattern extending over at least a part of the overlapped portion to form said seam. The bonding pattern has a main bonding pattern extending in longitudinal direction along at least a part of the overlapped portion, and at least one edge bonding pattern extending in longitudinal direction along at least a part of along and adjacent at least one side edge of the overlapped portion, the bonded area of said edge bonding pattern occupying no more than 30% of the total bonded area of the central bonding pattern plus the bonded area of the edge bonding pattern. The seam may be present in a personal care absorbent article.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: June 12, 2012
    Assignee: SCA Hygiene Products AB
    Inventor: Lucas Bäck
  • Publication number: 20120123377
    Abstract: A pant-type article having a boxer-short configuration. The article includes first and second panels which are joined via a crotch region joining. Folding and inverting the panels, and sealing along side-seams and inner legs seams provides a boxer-short. Methods for manufacturing the pant-type article are also provided. The pant-type article can be manufactured in a continuous side-by-side fashion.
    Type: Application
    Filed: July 16, 2009
    Publication date: May 17, 2012
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventor: Lucas Bäck
  • Publication number: 20120071309
    Abstract: A method of manufacturing a top sheet material or back sheet material for use in the manufacture of disposable absorbent articles, including the steps of: a) splitting a continuous first web of sheet material having substantially straight side edges into a second and third continuous web by an alternating concave-convex cutting line cut in a longitudinal direction along the continuous first web, the cutting line being distanced from both side edges of the continuous first web; b) shifting the second continuous web in a lateral direction in relation to the third continuous web so that the substantially straight edges of the second and third continuous webs are parallel to and adjacent to each other and longitudinally shifting the second continuous web so that the series of concave edge portions and the series of convex edge portions of the second and third continuous webs are longitudinally aligned with each other: c) directly or indirectly joining the substantially straight edges of the second and third conti
    Type: Application
    Filed: June 4, 2009
    Publication date: March 22, 2012
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Lucas Bäck, Ulrika Carlson