# US 10,766,221 B2 · Method and device for producing a cushioning product and cushioning product

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- Number: US 10,766,221 B2
- Document ID: US10766221B2
- Status: Granted
- Kind: B2
- Application number: 15/619,090
- Filed: 2017-06-09
- Published: 2017-09-28
- Granted: 2020-09-08
- Earliest claimed: 2012-12-11
- Assignees: Storopack Hans Reichenecker GmbH
- Applicants: Storopack Hans Reichenecker GmbH
- Inventors: Paul Deis; Jean-Marc Slovencik
- Web page: https://patentgrep.com/patent/US10766221B2

## CPC

- B31D 5/0052: {involving rollers}
- B65D 81/127: using rigid or semi-rigid sheets of shock-absorbing material {(B65D81/025 takes precedence)}
- B31D 2205/0023: as web from a roll
- B31D 2205/0047: Feeding, guiding or shaping the material
- B31D 2205/0058: Cutting; Individualising the final products
- B31D 2205/0064: Stabilizing the shape of the final product, e.g. by mechanical interlocking
- B31D 2205/0082: General layout of the machinery or relative arrangement of its subunits
- B65D 2581/053: Paper in general, e.g. paperboard, carton, molded paper
- Y10T 428/24463: Plural paper components
- B31D: MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C (manufacture by dry processes of articles made from particles or fibres consisting of wood or other lignocellulosic or like organic material B27N; making layered products not composed wholly of paper or cardboard B32B; making articles from cellulosic fibrous suspensions, e.g. wood pulp, D21J)
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The invention relates to a method for producing a cushioning product (88), comprising the following steps: providing a flat, longitudinal, two- or multilayered paper strip (10), wherein the individual layers (12, 14) of the paper strip (10) are connected to one another in at least some sections in a middle area (18) extending in the longitudinal direction, and wherein the individual layers (12, 14) of the paper strip (10) comprise marginal areas (20, 21, 22, 23) which are not connected to one another, opening adjacent marginal areas (20, 21, 22, 23) to form a paper strip (10) having a star-shaped cross section, and crumpling the paper strip (10) along the middle area (18).

## Claims

### Claim 1

A cushioning product comprising:
an elongated, longitudinally extending, multi-layered paper strip, said strip having a pair of opposite marginal areas and a middle area between said opposite marginal areas,
individual layers of said multi-layered paper strip connected to one another in said middle area in at least some locations along the longitudinal extent of said middle area,
individual layers of said multi-layered paper strip not connected to one another in said marginal areas,
adjacent ones of the individual layers of said multi-layered paper strip spread away from one another in said marginal areas such that said cushioning product has a longitudinally continuous star-shaped cross-section, the star-shaped cross-section defined as having protruding rays extending from the middle area of the paper strip, wherein the number of rays is based on the number of layers in the paper strip,
said middle area of said cushioning product crumpled longitudinally such that for a given length of said multi-layered paper strip, said cushioning product is shorter than the given length of said multi-layered paper strip,
wherein said adjacent ones of the individual layers of said multi-layered paper strip at each said marginal area form an included angle therebetween ranging from about 60 degrees to about 120 degrees.

### Claim 2 (depends on 1)

The cushioning product of claim 1 wherein said multi-layered paper strip has two layers, thereby producing a star-shaped cross-section having four rays.

### Claim 3 (depends on 1)

The cushioning product of claim 1 wherein the individual layers of said multi-layered paper strip are connected to one another in said middle area by an adhesive.

### Claim 4 (depends on 1)

The cushioning product of claim 1 wherein said multi-layered paper strip has separation areas, comprising lines of perforations, extending transversely to the longitudinal extent of said paper strip and spaced apart along the longitudinal extent of said paper strip.

### Claim 5 (depends on 1)

The cushioning product of claim 1 wherein the included angle ranges from about 70 degrees to about 100 degrees.

### Claim 6 (depends on 1)

The cushioning product of claim 1 wherein the included angle ranges from about 80 degrees to about 95 degrees.