IP Library › Granted Patent US 12,214,576
Granted Patent B2
US 12,214,576 · App. 18/655,030 · Granted Feb 4, 2025

Cushioning sheet

Inventors: Greg Sollie (Sharpsburg, GA); Christopher M. Stanton (Peachtree City, GA)
Assignee: Pratt Corrugated Holdings, Inc.
B32B3/08B32B3/30B32B7/12B32B29/005B32B37/0053B32B37/10B65D27/14B65D81/02B65D81/03B32B2307/558B32B2439/40
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Quick Facts
Patent No.
US 12,214,576
App. No.
18/655,030
Granted
Feb 4, 2025
Kind
B2
Abstract

A cushioning sheet includes a first layer defining a first inner surface; a second layer coupled to the first layer, the second layer defining a second inner surface facing the first inner surface; and a plurality of cushioning inserts disposed between the first layer and the second layer, wherein the first inner surface of the first layer contacts the plurality of cushioning inserts and the second inner surface of the second layer contacts the plurality of cushioning inserts.

Claims (27)

1. A cushioning sheet comprising:

a first layer defining a plurality of first sockets and a first inner surface;

a second layer coupled to the first layer, the second layer defining a plurality of second sockets and a second inner surface facing the first inner surface, each of the second sockets being aligned with a corresponding one of the first sockets to define a void therebetween; and

a plurality of cushioning inserts disposed between the first layer and the second layer, wherein each of the plurality of cushioning inserts is received in a corresponding one of the voids, and each void has a diameter that is larger than a diameter of the cushioning insert disposed therein so that each void is configured to loosely receive the cushioning insert disposed therein.

2. The cushioning sheet of claim 1 , wherein the first layer is a first paper layer and the second layer is a second paper layer.

3. The cushioning sheet of claim 2 , wherein each of the first paper layer and the second paper layer comprise a tissue-grade paper material.

4. The cushioning sheet of claim 2 , wherein each of the first paper layer and the second paper layer are covered with a coating to increase strength and maintain flexibility of the first paper layer and the second paper layer.

5. The cushioning sheet of claim 2 , wherein the first paper layer is substantially identical to the second paper layer.

6. The cushioning sheet of claim 2 , wherein each of the plurality of cushioning inserts comprises a starch material, and wherein the starch material is repulpable.

7. The cushioning sheet of claim 6 , wherein the starch material is a corn starch material.

8. The cushioning sheet of claim 6 , wherein each of the plurality of cushioning inserts is substantially spherical in shape.

9. The cushioning sheet of claim 8 , wherein a diameter of each of the plurality of cushioning inserts is about 0.375 inches.

10. The cushioning sheet of claim 1 , wherein the second layer is coupled to the first layer by an adhesive.

11. The cushioning sheet of claim 10 , wherein the adhesive is a starch paste, and wherein the starch paste is repulpable.

12. The cushioning sheet of claim 10 , wherein:

the cushioning sheet defines a first side, a second side opposite the first side, a first end, and a second end opposite the first end; and

the first layer is adhered to the second layer by the adhesive at the first side, the second side, the first end, and the second end.

13. The cushioning sheet of claim 12 , wherein the plurality of cushioning inserts are offset from the first side, the second side, the first end, and the second end towards a center of the cushioning sheet.

14. The cushioning sheet of claim 13 , wherein:

each of the first layer and the second layer defines a first side sealing flap and a second side sealing flap opposite the first side sealing flap;

the first side sealing flap of the first layer is adhered to the first side sealing flap of the second layer at the first side of the cushioning sheet; and

the second side sealing flap of the first layer is adhered to the second side sealing flap of the second layer at the second side of the cushioning sheet.

15. The cushioning sheet of claim 10 , wherein at least some of the plurality of cushioning inserts are adhered to at least one of the first layer or the second layer by the adhesive.

16. The cushioning sheet of claim 10 , wherein:

the adhesive is a first adhesive; and

at least some of the plurality of cushioning inserts are adhered to at least one of the first layer or the second layer by a second adhesive that is different from the first adhesive.

17. The cushioning sheet of claim 16 , wherein the second adhesive is a polyvinyl acetate glue.

Continuity (4)
Division 18146244 · Dec 23, 2022
Division 17177908 · Feb 17, 2021
Provisional Application 63059001 · Jul 30, 2020
Related Publication 20240286375A1 · Aug 29, 2024
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