公开(公告)号：US12179454B2

公开(公告)日：2024-12-31

申请号：US18252126

申请日：2021-11-11

Applicant: Ranpak Corp.

Inventor： Dennis J. Wagner ,  Robert C. Cheich ,  Brian J. Stinard

IPC: B31D5/00

Abstract: A dunnage conversion machine includes a forming assembly configured to form a sheet stock material into a strip of dunnage, and a feeding assembly downstream of the forming assembly that is configured to pull the sheet stock material through the forming assembly. The machine also includes a tear assist assembly downstream of the feeding assembly that includes a pinch arm on one side of the path and a stop opposing the pinch arm on an opposite side of the path. The pinch arm is movable between a resting position in which the pinch arm is located on the one side of the path, and a pinching position in which the pinch arm is located in the path to capture the strip of dunnage between the pinch arm and the stop. Reversing the feed assembly while the pinch arm is in the pinching position causes the strip of dunnage to tear.

公开(公告)号：US12037211B2

公开(公告)日：2024-07-16

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: B65H21/00 ,  B31D5/00 ,  B31F5/06 ,  B65H19/18

CPC classification number: B65H19/1852 ,  B31D5/0039 ,  B31F5/06 ,  B65H21/00 ,  B31D2205/0035 ,  B65H2301/46212 ,  B65H2301/46312 ,  B65H2701/11231 ,  B65H2701/1824 ,  B65H2801/63 ,  Y10T428/2419

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.

公开(公告)号：US12036762B2

公开(公告)日：2024-07-16

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

CPC classification number: B31D5/0047 ,  B65D81/05 ,  B31D2205/0047 ,  B31D2205/0052 ,  B31D2205/0058 ,  B31D2205/0064

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：US20230249429A1

公开(公告)日：2023-08-10

申请号：US18303153

申请日：2023-04-19

Applicant: Ranpak Corp.

Inventor： Robert C. Cheich ,  Steven M. Toneff ,  Hubertus J.M. Cals ,  Raimond P.M. Demers ,  Ronny Hubertus Joseph Hendrix ,  Johannes Hermanus Wilhelmus Driehuijs ,  Stephen Louis Dominak ,  Alexandra Snijders ,  Carrie A. Schlegel ,  Thomas Bayt ,  Kevin W. Park ,  Dennis Wagner

IPC: B31D5/00

CPC classification number: B31D5/0047

Abstract: A conversion assembly for a dunnage conversion machine includes both a downstream pair of rotatable members and an upstream pair of rotatable members upstream of the downstream rotatable members. The downstream rotatable members include a pair of gears, and each gear has a plurality of teeth and is rotatable about a respective axis. The gears are positioned so that the teeth of one gear are sequentially interlaced with the teeth of the other gear as the gears rotate. The upstream rotatable members include a pair of feed wheels, and the gears and the feed wheels define a path for a sheet stock material from between the upstream pair of feed wheels to between the downstream pair of gears. The rate at which the sheet stock material is advanced by the feed wheels is the same as the rate at which the sheet stock material is advanced by the gears.

公开(公告)号：US20220266564A1

公开(公告)日：2022-08-25

申请号：US17742861

申请日：2022-05-12

Applicant: Ranpak Corp.

Inventor： Robert C. Cheich ,  Brian H. Stewartson

IPC: B31D5/00 ,  B65H1/28

Abstract: A supply of single-ply, fan-folded sheet stock material includes a holder that facilitates simultaneously loading multiple plies of sheet stock material into a dunnage conversion machine for conversion into a dunnage product. The holder has inclined support surfaces and intersecting support walls that support the support surfaces in their inclined orientations. The holder has a W-shape cross-section, with inclined outer support surfaces and inclined inner support surfaces that may meet in the middle. The inner support surfaces generally are perpendicular to adjacent outer support surfaces to support a generally rectangular stack and sub-stacks of single-ply, fan-folded sheet stock material. The inclined support surfaces of the holder facilitate splitting the stack in half and supporting the two sub-stacks so that pages on top of the two stacks, connected by a center fold line, can be drawn into the conversion machine simultaneously.

公开(公告)号：US11358362B2

公开(公告)日：2022-06-14

申请号：US16341127

申请日：2017-10-31

Applicant: Ranpak Corp.

Inventor： Robert C. Cheich ,  Jiri Sip

IPC: B31D5/00

Abstract: A dunnage conversion machine converts a sheet stock material into a dunnage product that is relatively thicker and less dense than the stock material. The conversion machine includes a conversion assembly that draws the sheet stock material therethrough and randomly crumples at least a portion of the sheet stock material. Before severing a discrete dunnage product of a desired length from the substantially continuous length of sheet stock material, the conversion assembly temporarily advances the sheet stock material therethrough while minimizing or eliminating the random crumpling of the sheet stock material in a reduced-crumpling zone, and then cuts the sheet stock material in the reduced-cutting zone to reduce or eliminate the production of scrap shards of sheet stock material.

公开(公告)号：US20220080693A1

公开(公告)日：2022-03-17

申请号：US17531962

申请日：2021-11-22

Applicant: Ranpak Corp.

Inventor： Robert C. Cheich

IPC: B31D5/00 ,  B31D1/00

Abstract: A dunnage conversion system for expanding an unexpanded slit sheet stock material to form an expanded dunnage product. The dunnage conversion system includes a converging chute to inwardly gather laterally-extending edges of sheet stock material towards one another, causing random crumpling of the sheet stock material to form a modified ply. The conversion system also includes feed wheels that advance the modified ply through the converging chute and pinch rollers that cooperate with the feed wheels to expand the modified ply traveling between the feed wheels and the pinch rollers to form a dunnage product. The expanded dunnage product is expanded both in a longitudinal feed direction and in thickness as compared to the unexpanded slit sheet stock material, and thus is a three-dimensional product having increased volume and lower density per unit of length as compared to the unexpanded slit sheet stock material.

公开(公告)号：US20210101356A1

公开(公告)日：2021-04-08

申请号：US16604048

申请日：2018-03-28

Applicant: Ranpak Corp.

Inventor： Robert C. Cheich ,  Dennis J. Wagner

IPC: B31D5/00 ,  B31D1/00

Abstract: An improved expandable slit-sheet stock material is configured to aid in temporarily restricting opening of a plurality of slits of the slit-sheet stock material, such as during winding of the unexpanded stock material or during expansion of the stock material. Each slit of the plurality of slits includes one or more un-slit reinforcement portions, such as reinforcement ties, extending fully between opposite longitudinal sides of the slit, and disposed between opposed transverse endpoints of the slit. The reinforcement ties minimize or prevent tearing of the stock material during the winding or expansion. A dunnage conversion system for expanding the slit-sheet stock material includes an expander having a pair of opposed rollers. The rollers engage the stock material to effect breaking of the un-slit reinforcement portions and expansion of the slit-sheet stock material.

公开(公告)号：US20200016860A1

公开(公告)日：2020-01-16

申请号：US16497174

申请日：2018-03-22

Applicant: Ranpak Corp.

Inventor： Robert C. Cheich ,  Dennis J. Wagner

IPC: B31D5/00 ,  B65H23/04

Abstract: A dunnage conversion machine for converting an expandable pre-slit sheet stock material into a relatively less dense dunnage product includes an improved expansion assembly that provides means for adjusting the spacing between axes of rotation of components through which the sheet stock material is drawn. The adjustability enables pre-slit sheet stock materials of differing thicknesses and/or having differing slit patterns to be fed through the expansion assembly with no or minimal compression of an expanded dunnage product, jamming in the conversion machine, bunching, and/or tearing of the pre-slit sheet stock material or expanded dunnage product resulting from expansion of the pre-slit sheet stock material.

公开(公告)号：US09505549B2

公开(公告)日：2016-11-29

申请号：US14493109

申请日：2014-09-22

Applicant: Ranpak Corp.

Inventor： Franklin B. Yap ,  Steven M. Toneff ,  Robert C. Cheich ,  Joseph J. Harding ,  Judith L. Skiba ,  James A. Simmons, Jr. ,  James Tekavec ,  Edward W. Lintala ,  Erwin Methorst ,  Koen H. M. Kuypers ,  Dan Coppus ,  Raimond P. M. Demers ,  Pierre Kobben

IPC: B65D85/16 ,  B65G57/03 ,  B65D75/58 ,  B65D71/02 ,  B65D83/08 ,  B65D5/54 ,  B65D85/62

CPC classification number: B65D85/16 ,  B31D2205/0035 ,  B65D5/54 ,  B65D71/02 ,  B65D75/5827 ,  B65D83/08 ,  B65D83/0805 ,  B65D85/07 ,  B65D85/62 ,  B65G57/03 ,  B65H2701/1824 ,  B65H2701/1944 ,  B65H2801/63

Abstract: A method of loading a stack of sheet stock material for use by a dunnage conversion machine, includes the following steps: (i) providing first and second stacks, the second stack being protected by a carrier having a central portion and longitudinally-spaced extensions that bound a central portion, the extensions and the central portion being joined along a weakened area defining a tear line, the central portion and the longitudinally-spaced extensions forming a planar bottom panel and a planar side panel, each panel extending substantially the length of the stack, and at a right angle to each other about a fold line over a bottom and an adjacent side of the stack, and one or more bale ties longitudinally inwardly of the tear lines holding the carrier to the stack; (ii) removing the extensions from the carrier; (iii) setting the second stack on top of the first stack; and (iv) removing the bale ties and the carrier, whereby an adhesive bonds the top page of the first stack to the bottom page of the second stack.

Abstract translation: 一种装载用于垫料转换机的片材原料的堆叠的方法包括以下步骤：（i）提供第一和第二堆叠，第二堆叠由具有中心部分和纵向间隔的延伸部的载体保护， 限制中心部分，延伸部分和中心部分沿着限定撕裂线的弱化区域接合，中心部分和纵向隔开的延伸部形成平面底板和平面侧板，每个面板基本上延伸 堆叠，并且围绕堆叠的底部和相邻侧的折叠线彼此成直角，并且将撕开线的纵向内侧的一个或多个捆扎带固定到托架上; （ii）从承运人移除延伸部分; （iii）将第二堆叠设置在第一堆叠的顶部; 和（iv）去除捆扎带和载体，由此粘合剂将第一叠层的顶页粘合到第二叠层的底页。