Dunnage system with void volume probe

• US 8,272,195 B2
• Filed: 03/26/2007
• Issued: 09/25/2012
• Est. Priority Date: 07/22/1994
• Status: Expired due to Fees

• Current Assignee: Ranpak Corp. (Ranpak Holdings Corp.)
• Original Assignee: Ranpak Corp. (Ranpak Holdings Corp.)
• Inventors: Harding, Joseph J., Ratzel, Richard O.
• Primary Examiner(s): HARMON, CHRISTOPHER R
• Application Number:
  US11/691,089
• Publication Number:
  US 20070283670A1
• Time in Patent Office: 2,010 Days
• Field of Search: 535/03, 534/72, 535/04, 53/64, 53/67, 53/76, 493/29, 493/30, 493/404, 493/967, 493/66
• US Class Current: 53/503
• CPC Class Codes: B31D 2205/0023 as web from a roll
• CPC Class Codes: B31D 2205/0047 Feeding, guiding or shaping the material
• CPC Class Codes: B31D 2205/0088 Control means
• CPC Class Codes: B31D 5/0047 involving toothed wheels
• CPC Class Codes: B65B 55/20 Embedding contents in shock-absorbing media, e.g. plastic foam, granular material
• CPC Class Codes: Y10S 493/967 Dunnage, wadding, stuffing, or filling excelsior
• CPC Class Codes: Y10T 83/54 Actuation of tool controlled by work-driven means to measure work length

Abstract

A system for providing dunnage to a container for packaging an object in the container includes a void volume probe and a supply of dunnage. The void volume probe measures the void volume of the container and outputs information representative of the measured void volume. And the supply of dunnage is controllable to dispense an amount of dunnage to fill the void volume based on the information output from the void volume probe.

Claims

1. A system for providing dunnage to a container for packing an object in the container, comprising:

a void volume probe that measures a void volume of the container and outputs information representative of the measured void; and

a supply of dunnage that is controllable to dispense an amount of dunnage to fill the void volume based on the information output from the void volume probe.

2. The system according to claim 1, wherein the dunnage supply includes a conversion machine to convert sheet stock material into the dunnage.

3. A system as set forth in claim 1, wherein the conversion machine converts a supply of dunnage that includes a supply of sheet kraft paper into a dunnage product.

4. A system as set forth in claim 2, wherein the conversion machine includes a conversion assembly that converts the sheet stock material into a three-dimensional strip of dunnage, and a stock supply assembly, positioned upstream of the conversion assembly that supplies the stock material to the conversion assembly, the conversion assembly including a forming assembly which forms the sheet stock material into a strip of dunnage and a feed assembly which feeds the stock material through the forming assembly.

5. A system as set forth in claim 4, comprising a controller that receives measurement information from the probe and determines the void volume from the measurement information, the controller controlling the conversion assembly to produce the determined amount of dunnage for the void volume.

6. A system as set forth in claim 4, wherein the controller controls the feed assembly to produce the amount of dunnage necessary to fill the void volume.

7. A system as set forth in claim 5, wherein the controller determines the number of dunnage products necessary to fill the void volume and controls the conversion assembly to produce the necessary number of dunnage products to fill the void volume.

8. The system according to claim 1, wherein the void volume is measured while the object is in the container.

9. The system according to claim 1, comprising a controller that receives measurement information from the probe and determines the void volume from the measurement information.

10. The system according to claim 9, wherein the controller controls the dunnage supply to supply an amount of dunnage that does not substantially exceed the void volume.

11. A system as set forth in claim 9, wherein the controller determines one or more lengths of dunnage necessary to fill the void volume;

and controls the conversion assembly to produce the necessary lengths of dunnage.

12. The system according to claim 1, wherein the probe is an optical sensor that senses a degree of fill of the container.

13. The system according to claim 1, wherein the probe is an ultrasonic sensor that senses a degree of fill of the container.

14. The system according to claim 1, wherein the probe uses machine vision to sense a degree of fill of the container.

15. The system according to claim 1, wherein the probe uses pattern recognition to sense a degree of fill of the container.

16. The system according to claim 1, wherein the probe is a mechanical probe.

17. The system according to claim 16, wherein the mechanical probe includes a plunger.

18. The system according to claim 16, wherein the mechanical probe includes an air cylinder.

19. The system according to claim 16, wherein the mechanical probe includes a low pressure probe.

20. A method of providing dunnage to a container that is used to pack an object, comprising the steps of:

determining a void volume of the container using a probe; and

supplying an amount of dunnage required to fill the void volume.