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公开(公告)号：US12060682B2
公开(公告)日：2024-08-13
申请号：US17261136
申请日：2019-07-19
Applicant: Celwise AB
Inventor： David Pierce
IPC: B32B23/10 , B31B50/72 , B32B3/06 , B32B7/05 , B65D65/40 , D21J3/00 , D21J3/12 , D21J7/00 , B31B120/40
CPC classification number: D21J3/12 , B31B50/72 , B32B3/06 , B32B7/05 , B32B23/10 , B65D65/40 , D21J3/00 , D21J7/00 , B31B2120/404 , B32B2262/062 , B32B2307/7163 , B32B2307/7244 , B32B2307/7246 , B32B2439/70
Abstract: The present disclosure provides a laminated biodegradable product, comprising a first functional layer in the form of a three-dimensional molded pulp structure, a functional second layer of a cellulose based material, and an overlap region, in which the first layer and the second layer overlap each other and are connected to each other.
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公开(公告)号：US20220081847A1
公开(公告)日：2022-03-17
申请号：US17419873
申请日：2020-01-03
Applicant: Celwise AB
Inventor： David Pierce
Abstract: The document relates to a device for producing a 3D molded product from a pulp slurry, comprising a pair of cooperating press tools, each having a respective product face. The press tools are movable relative each other between a closed press position, wherein the product faces are sufficiently close to press the pulp product there between, and an open transfer position, wherein the pulp product can be removed from the product face of one of the press tools. At least one of the product faces is porous. The device further comprises a radiation heater, which is adapted to radiate heat towards the product face of the porous press tool, when the porous press tool is in its open position.
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公开(公告)号：US20210269983A1
公开(公告)日：2021-09-02
申请号：US17261155
申请日：2019-07-19
Applicant: Celwise AB
Inventor： David Pierce
Abstract: The present disclosure provides a method of producing a 3D molded product from a pulp slurry. The method comprises applying a pulp slurry layer to a porous forming face of a first mold, in a first forming step, pressing the pulp slurry layer against the porous forming face of the first mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the first mold, transferring the pulp slurry layer to a porous forming face of a second mold, in a second, subsequent, forming step, pressing the pulp slurry layer against the porous forming face of the second mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the second mold. In the method, a first pressure at the rear side of the forming face of the porous forming face of the first mold is lower than a second pressure at the rear side of the porous forming face of the second mold.
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公开(公告)号：US20250091773A1
公开(公告)日：2025-03-20
申请号：US18729817
申请日：2023-01-19
Applicant: Celwise AB
Inventor： David Pierce
Abstract: The present disclosure relates to a closure system (100), comprising: a pulp molded container (200) comprising a wall portion (201) which surrounds a product space (2000) presenting a cross-sectional area, wherein said wall portion extends along an axial direction perpendicular to the cross-sectional area, between a first open end (203) and a second end (204) being axially opposite said first open end, wherein a first end wall portion (205) extending from said first open end has a first substantially conical sealing surface (206) presenting a first angle relative to the axial direction; and a pulp molded cap (300) having a second substantially conical scaling surface (306) presenting a second angle relative to the axial direction; wherein the first and second angles substantially match, and wherein one of said first and second substantially conical sealing surfaces (206, 306) presents at least one male partial thread (210) and the other one of said first and second substantially conical sealing surfaces (206, 306) presents at least one corresponding female partial thread (310). The disclosure further relates to a method for producing a cap or cap part from a pulp slurry, and a tool for producing a cap or cap part from a pulp slurry.
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公开(公告)号：US11905101B2
公开(公告)日：2024-02-20
申请号：US17261138
申请日：2019-07-19
Applicant: Celwise AB
Inventor： David Pierce
IPC: B65D81/38 , D21J3/10 , B65D1/26 , B65D3/06 , D21J7/00 , B29C39/12 , B32B37/00 , B31F1/00 , B29C51/00
CPC classification number: B65D81/3869 , B29C39/12 , B31F1/007 , B32B37/0076 , B65D1/265 , B65D3/06 , D21J3/10 , D21J7/00 , B29C51/006 , B31F2201/0764
Abstract: The document relates to a method of making a disposable double walled structure comprising an inner wall portion (51) surrounding a product space presenting a cross section and extending along an axial direction, perpendicular to the cross section, between first and second axially spaced apart portions, and an outer wall portion (52) at least partially surrounding the inner wall portion (51), wherein an insulating space is formed between the inner and outer wall portions. The method comprises forming the inner and outer walls (51, 52) in one piece, such that the inner and outer walls are connected at the first axial portion and at least partially overlap as seen in a direction perpendicular to the axial direction, and bending at least one of the inner (51) and outer (52) wall portions in the direction perpendicular to the axial direction towards the other one of the inner (51) and outer (52) wall portions at the second axial portion, so as to form the insulating space.
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Patent Agency Ranking
公开(公告)号：US12297602B2
公开(公告)日：2025-05-13
申请号：US17419890
申请日：2020-01-03
Applicant: Celwise AB
Inventor： David Pierce
Abstract: The document relates to a tool for producing a 3D molded product from a pulp slurry, comprising a pair of molds having respective product faces, that are configured to face each other and to press a pulp layer therebetween, said product faces providing a 3D shape for molding the 3D molded product, said product faces presenting a respective outer product face edge, defining an outermost limit of a forming area of mold. At least one of the product faces, as seen from the product face edge and inwardly towards a center of gravity of the product face, presents an outer zone (Z1) having effectively no porosity, and an inner zone (Z4) having a porosity of 40-75%, wherein a first intermediate zone (Z2) is arranged between the outer zone (Z1) and the inner zone (Z4), and has a porosity that is greater than that of the outer zone (Z1) and less than that of the inner zone (Z4).
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公开(公告)号：US12195923B2
公开(公告)日：2025-01-14
申请号：US18235121
申请日：2023-08-17
Applicant: Celwise AB
Inventor： David Pierce
Abstract: A method of producing a 3D molded product comprises applying a pulp slurry layer to a porous forming face of a first mold, pressing the pulp slurry layer against the porous forming face of the first mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the first mold, transferring the pulp slurry layer to a porous forming face of a second mold, in a subsequent forming step, pressing the pulp slurry layer against the porous forming face of the second mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the second mold. In the method, a first pressure at the rear side of the forming face of the porous forming face of the first mold is lower than a second pressure at the rear side of the porous forming face of the second mold.
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公开(公告)号：US12180657B2
公开(公告)日：2024-12-31
申请号：US17419910
申请日：2020-01-03
Applicant: Celwise AB
Inventor： David Pierce
IPC: D21J5/00
Abstract: The document relates to a pick-up press device for use in a process of producing a 3D molded product from a pulp slurry comprising a pick-up press tool presenting a porous first product face; a press tool presenting a second product face; and a vacuum source, connected to the pick-up press tool. The pick-up press tool and the press tool are vertically movable relative one another, wherein, in a first relative position of the press tools, at least one of the product faces is positioned so as to receive a pulp slurry layer in liquid form to its product face, and wherein in a second relative position of the press tools, the product faces are pressed towards each other for pressing the pulp slurry layer. The device further comprises a first transfer tool, wherein the first transfer tool comprises a first forming surface portion, configured to conform to a first portion of the porous first product face, such that a forming gap is defined there between, said forming gap defining a desired pulp slurry layer thickness; and a second forming surface portion, configured to diverge from a second portion of the porous first product face, such that a non-forming space is defined by the second forming surface portion and a second portion of the porous first product face, said non-forming space having a greater thickness than the forming gap.
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公开(公告)号：US20210316935A1
公开(公告)日：2021-10-14
申请号：US17261138
申请日：2019-07-19
Applicant: Celwise AB
Inventor： David Pierce
Abstract: The document relates to a method of making a disposable double walled structure comprising an inner wall portion (51) surrounding a product space presenting a cross section and extending along an axial direction, perpendicular to the cross section, between first and second axially spaced apart portions, and an outer wall portion (52) at least partially surrounding the inner wall portion (51), wherein an insulating space is formed between the inner and outer wall portions. The method comprises forming the inner and outer walls (51, 52) in one piece, such that the inner and outer walls are connected at the first axial portion and at least partially overlap as seen in a direction perpendicular to the axial direction, and bending at least one of the inner (51) and outer (52) wall portions in the direction perpendicular to the axial direction towards the other one of the inner (51) and outer (52) wall portions at the second axial portion, so as to form the insulating space.
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公开(公告)号：US20230392322A1
公开(公告)日：2023-12-07
申请号：US18235121
申请日：2023-08-17
Applicant: Celwise AB
Inventor： David Pierce
Abstract: The present disclosure provides a method of producing a 3D molded product from a pulp slurry. The method comprises applying a pulp slurry layer to a porous forming face of a first mold, in a first forming step, pressing the pulp slurry layer against the porous forming face of the first mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the first mold, transferring the pulp slurry layer to a porous forming face of a second mold, in a second, subsequent, forming step, pressing the pulp slurry layer against the porous forming face of the second mold, while heating the pulp slurry layer and drawing a vacuum through the porous forming face of the second mold. In the method, a first pressure at the rear side of the forming face of the porous forming face of the first mold is lower than a second pressure at the rear side of the porous forming face of the second mold.
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