Patents by Inventor David Sahlin
David Sahlin 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).
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Patent number: 11206956Abstract: A dispenser for dispensing at least one perforated web from a storage of web material, the dispenser including: a housing arranged to hold a storage of perforated web material, wherein a web path extends along a feeding direction in an interior of the housing from a storage position to a dispensing opening of the dispenser, and a separation arrangement being arranged along said web path, for separating the at least one perforated web along the perforations thereof, said separation arrangement including a first unit and a second unit, the second unit being arranged downstream said first unit, as seen in the feeding direction of the web path. The first unit is arranged to provide a tensioning force on said web, and the second unit being arranged to stretch the web material along the length of the web and along the width of the web.Type: GrantFiled: June 3, 2020Date of Patent: December 28, 2021Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAGInventors: Björn Larsson, Per Moller, David Sahlin, Lars Thorén
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Publication number: 20210321832Abstract: A dispenser for dispensing at least one perforated web from a storage of web material, the dispenser including: a housing arranged to hold a storage of perforated web material, wherein a web path extends along a feeding direction in an interior of the housing from a storage position to a dispensing opening of the dispenser, and a separation arrangement being arranged along said web path, for separating the at least one perforated web along the perforations thereof, said separation arrangement including a first unit and a second unit, the second unit being arranged downstream said first unit, as seen in the feeding direction of the web path. The first unit is arranged to provide a tensioning force on said web, and the second unit being arranged to stretch the web material along the length of the web and along the width of the web.Type: ApplicationFiled: June 3, 2021Publication date: October 21, 2021Applicant: Essity Hygiene and Health AktiebolagInventors: Björn LARSSON, Per MOLLER, David SAHLIN, Lars THORÉN
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Publication number: 20210085133Abstract: A separation unit for separating a web material along preformed lines of weakness. The separation unit includes a first roller, and a second roller having a rotational axis extending parallel with the rotational axis of the first roller. The rotational axis of the second roller is positioned at a distance from the rotational axis of said first roller. Each of the first and second rollers is provided with at least one protrusion element. Outer portions of the protrusion elements on the first roller are partially overlapping with outer portions of the protrusion elements on the second roller with a radial overlap length, thus forming an undulating passage for a web material between the rollers. The distance between the rotational axes of the first and the second rollers is adjustable, enabling the radial overlap length in the undulating passage to be variable. Also, a dispenser including the separation unit.Type: ApplicationFiled: October 29, 2020Publication date: March 25, 2021Applicant: ESSITY HYGIENE AND HEALTH AKTIEBOLAGInventors: Björn LARSSON, Per MOLLER, David SAHLIN, Lars THORÉN
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Publication number: 20200323398Abstract: A dispenser for dispensing at least one perforated web from a storage of web material, the dispenser including: a housing arranged to hold a storage of perforated web material, wherein a web path extends along a feeding direction in an interior of the housing from a storage position to a dispensing opening of the dispenser, and a separation arrangement being arranged along said web path, for separating the at least one perforated web along the perforations thereof, said separation arrangement including a first unit and a second unit, the second unit being arranged downstream said first unit, as seen in the feeding direction of the web path. The first unit is arranged to provide a tensioning force on said web, and the second unit being arranged to stretch the web material along the length of the web and along the width of the web.Type: ApplicationFiled: June 3, 2020Publication date: October 15, 2020Applicant: Essity Hygiene and Health AktiebolagInventors: Björn LARSSON, Per MOLLER, David SAHLIN, Lars THORÉN
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Patent number: 10188244Abstract: A dispenser for dispensing a sheet of web material from a stack of folded web material, the dispenser including: a web material storage section arranged to hold and support the stack of folded web material; the web material storage section including an upper end portion from which the web material is arranged to be lead for dispensing thereof, a lower end portion, opposite to the upper end portion, the upper end portion and lower end portion being arranged in a fixed spatial relationship. The lower end portion of the web material storage section includes a loading opening and a supporting arrangement, arranged to be movable between a support position wherein the supporting arrangement extends at least partially over said loading opening enabling the support of the stack of folded web material, and an insert position.Type: GrantFiled: June 19, 2014Date of Patent: January 29, 2019Assignee: ESSITY HYGIENE AND HEALTH ABInventors: Björn Larsson, Per Möller, David Sahlin, Lars Thorén
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Patent number: 10058221Abstract: A dispenser for dispensing at least one web from a stack of web material is disclosed. The dispenser includes a housing arranged to hold a stack of web material. A web path extends in an interior of the housing in a first direction in a first portion of the housing and in a second direction in a second portion of the housing. The housing includes an access opening providing access to the interior of the housing. The web path is accessible along a third direction, in both the first and second portions of the housing, via the access opening.Type: GrantFiled: October 26, 2012Date of Patent: August 28, 2018Assignee: SCA HYGIENE PRODUCTS ABInventors: Bjorn Larsson, Gunnel Elglund, Per Moller, Lars Thoren, David Sahlin
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Publication number: 20170135535Abstract: A dispenser for dispensing a sheet of web material from a stack of folded web material, the dispenser including: a web material storage section arranged to hold and support the stack of folded web material; the web material storage section including an upper end portion from which the web material is arranged to be lead for dispensing thereof, a lower end portion, opposite to the upper end portion, the upper end portion and lower end portion being arranged in a fixed spatial relationship. The lower end portion of the web material storage section includes a loading opening and a supporting arrangement, arranged to be movable between a support position wherein the supporting arrangement extends at least partially over said loading opening enabling the support of the stack of folded web material, and an insert position.Type: ApplicationFiled: June 19, 2014Publication date: May 18, 2017Applicant: SCA Hygiene Products ABInventors: Bjorn LARSSON, Per MÖLLER, David SAHLIN, Lars THORÉN
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Publication number: 20170042392Abstract: A dispenser for dispensing at least one perforated web from a storage of web material, the dispenser including: a housing arranged to hold a storage of perforated web material, wherein a web path extends along a feeding direction in an interior of the housing from a storage position to a dispensing opening of the dispenser, and a separation arrangement being arranged along said web path, for separating the at least one perforated web along the perforations thereof, said separation arrangement including a first unit and a second unit, the second unit being arranged downstream of said first unit. The first unit is arranged to provide a tensioning force on said web, said tensioning force being at least 2 N/m, and the second unit being arranged to stretch the web material along the length of the web and along the width of the web.Type: ApplicationFiled: April 28, 2014Publication date: February 16, 2017Applicant: SCA Hygiene Products ABInventors: Björn LARSSON, Per MÖLLER, David SAHLIN, Lars THORÉN
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Publication number: 20150297042Abstract: A separation unit for separating a web material along preformed lines of weakness is provided. The separation unit includes at least a first roller, and at least a second roller having a rotational axis extending parallel with said rotational axis of said first roller. The rotational axis of the second roller is positioned at a distance from the rotational axis of said first roller. Each of the first and said second rollers is provided with at least one protrusion element. Outer portions of the protrusion elements on the first roller are partially overlapping with outer portions of the protrusion elements on the second roller with a radial overlap length, thus forming an undulating passage for a web material between the rollers. The distance between the rotational axes of the first and the second rollers is adjustable, enabling the radial overlap length in the undulating passage to be variable.Type: ApplicationFiled: March 8, 2013Publication date: October 22, 2015Applicant: SCA Hygiene Products ABInventors: Bjorn LARSSON, Per MOLLER, David SAHLIN, Lars THOREN
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Publication number: 20150282680Abstract: A dispenser for dispensing at least one webfrom a stack of web material is disclosed. The dispenser includes a housing arranged to hold a stack of web material. A web path extends in an interior of the housing in a first direction in a first portion of the housing and in a second direction in a second portion of the housing. The housing includes an access opening providing access to the interior of the housing. The web path is accessible along a third direction, in both the first and second portions of the housing, via the access opening.Type: ApplicationFiled: October 26, 2012Publication date: October 8, 2015Applicant: SCA HYGIENE PRODUCTS ABInventors: Björn Larsson, Gunnel Elglund, Per Möller, Lars Thorén, David Sahlin