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公开(公告)号：US12202225B2
公开(公告)日：2025-01-21
申请号：US18058558
申请日：2022-11-23
Applicant: Ranpak Corp.
Inventor： Robert C. Cheich , Dennis Wagner
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 cause lateral edges of the sheet material to roll towards one another, forming a tubular shape. 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 together the overlapping lateral edge portions of the sheet material forming the tab.
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公开(公告)号：US12115751B2
公开(公告)日：2024-10-15
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.
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公开(公告)号：US11787145B2
公开(公告)日：2023-10-17
申请号：US17531962
申请日：2021-11-22
Applicant: Ranpak Corp.
Inventor： Robert C. Cheich
CPC classification number: B31D5/0052 , B31D1/0031 , B31D5/0047 , B31D5/0065 , B31D2205/0017 , B31D2205/0023 , B31D2205/0047
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.
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公开(公告)号：US11498303B2
公开(公告)日：2022-11-15
申请号：US15077549
申请日：2016-03-22
Applicant: Ranpak Corp.
Inventor： Robert C. Cheich , David V. Murphy , Steven M. Toneff , Jacob G. Popek , Carrie Schlegal
IPC: B31D5/00
Abstract: A machine for converting a sheet stock material into a dunnage product includes a conversion assembly for converting sheet stock material into a dunnage product as the sheet stock material travels along a path from an upstream end of the conversion assembly to a downstream end of the conversion assembly. The machine further includes a transversely extending guide over which the stock material passes for guided entry into the upstream end of the conversion assembly. The guide is rotatable such that the transverse extent of the guide can be moved between a plurality of relatively rotated orientations to guide the sheet stock material from different sides of the conversion assembly.
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公开(公告)号：US11123943B2
公开(公告)日：2021-09-21
申请号：US15308227
申请日：2015-05-01
Applicant: Ranpak Corp.
Inventor： Robert C. Cheich , Steven Toneff
IPC: B31D5/00
Abstract: A dunnage conversion machine includes a bunching assembly that randomly crumples at least two plies of sheet stock material into modified plies having a relatively thicker three-dimensional shape, and a feeding assembly that advances and connects together longitudinally-extending portions of the modified plies to form a dunnage strip. A diverter minimizes overlap of and encourages separation of lateral edges of the modified plies from one another, and a severing assembly severs distinct dunnage products from the strip. An exemplary resultant dunnage product includes two or more plies of crumpled sheet material interconnected along a longitudinally-extending portion having interconnected overlapped portions of each of the plies and a longitudinally-extending line of connection. Each ply may extend laterally outwardly along randomly crumpled edge portions having a crumpled lateral width greater than a lateral width of the longitudinally-extending portion, the edge portions extending from the line of connection to opposed, laterally-extending free edges.
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Patent Agency Ranking
公开(公告)号：US20170259522A1
公开(公告)日：2017-09-14
申请号：US15604982
申请日：2017-05-25
Applicant: Ranpak Corp.
Inventor： Robert C. Cheich , David V. Murphy , Steven M. Toneff , Maurice Jozef Paulus Anthonius Savelberg , Raymond Paulus Hubertus Nollé , Pedro Erik Willem Winkens
Abstract: A dunnage conversion machine (36) converts a sheet stock material into a dunnage product that is relatively thicker and less dense than the stock material, but is relatively thin and sufficiently flexible to function as a protective wrap. The conversion machine includes a feed mechanism (40) that advances a sheet stock material therethrough and a connecting mechanism (42) downstream of the feed mechanism. The connecting mechanism retards the passage of the sheet stock material therethrough by feeding the stock material therethrough at a slower rate than the feed mechanism feeds the stock material to the connecting mechanism. This causes the stock material to randomly crumple in a longitudinal space between the feed mechanism and the connecting mechanism. The connecting mechanism connects multiple overlapping layers of sheet stock material together as they pass therethrough, including connecting at least one crumpled sheet to one side of one other sheet.
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37.发明授权公开(公告)号：US12115753B2
公开(公告)日：2024-10-15
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
CPC classification number: B31D5/0065 , B31D2205/0047 , B31D2205/0058 , B31D2205/0064
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.
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38.发明授权公开(公告)号：US11911994B2
公开(公告)日：2024-02-27
申请号：US17742861
申请日：2022-05-12
Applicant: Ranpak Corp.
Inventor： Robert C. Cheich , Brian H. Stewartson
CPC classification number: B31D5/0039 , B65H1/28 , B31D2205/0035 , B31D2205/0047 , B31D2205/0082 , B65H20/26
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.
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公开(公告)号：US11780202B2
公开(公告)日：2023-10-10
申请号：US17455369
申请日：2021-11-17
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.
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公开(公告)号：US11383476B2
公开(公告)日：2022-07-12
申请号：US16633491
申请日：2018-08-06
Applicant: Ranpak Corp.
Inventor： Dennis J. Wagner , Robert C. Cheich
Abstract: A manually-operated dunnage conversion apparatus includes a housing, a support mounted in the housing and configured to support a supply of sheet material for dispensing from the dunnage conversion apparatus, and one or both of (a) a guide member mounted in the housing downstream of the support and providing a resilient surface across which the sheet material may be drawn to restrict tearing of the sheet material as it is drawn from the dunnage conversion apparatus, and (b) a tensioning assembly mounted in the housing and configured to apply a compressive force between opposite axial sides of the housing to control the force necessary to dispense the supply of sheet material. Except for the tensioning assembly, the apparatus may be made of paper-based products, making the apparatus recyclable, reusable, and composed of a renewable resource, as well as inexpensive to manufacture.
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