公开(公告)号：US20230142122A1

公开(公告)日：2023-05-11

申请号：US17907521

申请日：2021-03-15

Applicant: Ranpak Corp.

Inventor： Brian J. STINARD ,  Robert C. CHEICH ,  Dennis J. WAGNER

IPC: B31B70/00 ,  B31B70/26 ,  B31B70/99

CPC classification number: B31B70/003 ,  B31B70/26 ,  B31B70/99 ,  B31B2150/0016

Abstract: A bag forming apparatus for forming a flat bottom of a bag includes a base, opposing sidewalls that extend upright relative to the base, and a top that is operably coupled to an upper portion of each of the sidewalls. The top has an intermediate pivot axis between the sidewalls that enables the top to pivot about the pivot axis between a collapsed state and an expanded state. In the collapsed state, the upper portions of the respective sidewalls are closer together and the top extends upright relative to the base to form a tip for insertion into an opening of the bag. In the expanded state, the upper portions of the respective sidewalls are spaced further apart and the top extends horizontally relative to the base to form a platform for forming the flat bottom of the bag.

公开(公告)号：US20230094170A1

公开(公告)日：2023-03-30

申请号：US17905986

申请日：2021-03-09

Applicant: Ranpak Corp.

Inventor： Robert C. CHEICH ,  Dennis J. WAGNER ,  Brian J. Stinard

IPC: B31D5/00

Abstract: A dunnage conversion machine includes (i) a pair of gripping rollers configured to rotate at a first rotational speed to advance a slit-sheet material in a downstream direction; (ii) a pair of expansion rollers configured to rotate at a second rotational speed, faster than the first rotational speed, creating a stretching force on the slit-sheet material and further advancing the slit-sheet material, causing expansion of the slit-sheet material to a fully expanded state; and (iii) a pair of relaxation rollers configured to rotate at a third rotational speed, slower than the second rotational speed, reducing the stretching force and further advancing the slit-sheet material, allowing the slit-sheet material to relax to a partially expanded state. The pair of relaxation rollers (iii) also are configured to capture the slit-sheet material in the partially expanded state between a top cover sheet and a bottom cover sheet to form a dunnage pad.

公开(公告)号：US20220168986A1

公开(公告)日：2022-06-02

申请号：US17442578

申请日：2020-03-12

Applicant: Ranpak Corp.

Inventor： Robert C. CHEICH ,  Dennis J. WAGNER

IPC: B31D5/00 ,  B65D81/05

Abstract: A machine for converting a sheet material into a relatively less dense dunnage product includes a forming assembly and a feeding assembly downstream of the forming assembly. The forming assembly is configured to form the sheet material into a tubular shape with lateral edges of the sheet material adjacent one another. A deflector at a downstream end of the forming assembly is configured to engage the lateral edges of the sheet material and to urge the lateral edges into an interior of the tubular shape. This juxtaposes lateral edge portions of the sheet material adjacent the respective lateral edges. A forming channel at a downstream end of the forming assembly faces the deflector to receive the lateral edge portions and shape them into a tab. Finally, the feeding assembly includes rotating connecting members that engage and connect the overlapping lateral edge portions of the sheet material forming the tab.

公开(公告)号：US20220184914A1

公开(公告)日：2022-06-16

申请号：US17432051

申请日：2020-02-12

Applicant: Ranpak Corp.

Inventor： Robert C. CHEICH ,  Dennis J. WAGNER ,  Peter L.C. LEMMENS ,  Rob A.H. PLUIJMEN

IPC: B31D5/00

Abstract: A cushioning conversion machine converts a sheet stock material into a relatively lower-density cushioning dunnage product. An exemplary sheet stock material includes two sheets that each overlap a common side of another sheet and are connected to respective lateral edges of the other sheet. The conversion machine includes a forming assembly having a former for shaping and randomly crumpling the sheet material, a set of adjustable guide members to guide the crumpled sheet material to a feeding assembly downstream of the forming assembly, and a severing assembly downstream of the feeding assembly that separates discrete lengths of cushioning. The severing assembly includes a window frame passage that guides the crumpled sheet material to an outlet during operation of the feeding assembly and constrains the crumpled sheet stock material during operation of the severing assembly.

公开(公告)号：US20220002106A1

公开(公告)日：2022-01-06

申请号：US17290158

申请日：2019-10-30

Applicant: Ranpak Corp.

Inventor： Robert C. CHEICH ,  Dennis J. WAGNER ,  Brian STINARD ,  Hugo VAN OOL ,  Leon HANSSEN ,  Mike TIMMERS

IPC: B65H19/18

Abstract: A supply (22) of sheet stock material (24, 34) for a dunnage conversion machine (26) that is readily spliced to another supply includes (a) one or more plies of sheet material (24, 34) having (i) multiple longitudinally-extending sections, including a center section (42) bounded by lateral sections (40), where the lateral sections (40) are folded over a common face of the center section (42) along longitudinal fold lines (44) at lateral edges of the folded sheet material, and (ii) a leading end (60) and a trailing end (62) at respective longitudinally-opposite ends of the sheet material, where the lateral sections (40) are separated from the center section (42) adjacent the leading end (60) and adjacent the trailing end (62) along respective lines of separation; and (b) a splicing adhesive (76) applied to the sheet material adjacent the leading end (60) or the trailing end (62) on both the center section (42) and each of the lateral WO 2020/092578 A1 sections (40) to facilitate splicing each section to respective sections of two supplies.