Compact dunnage converter

• US 10,239,276 B2
• Filed: 03/15/2013
• Issued: 03/26/2019
• Est. Priority Date: 06/10/2006
• Status: Active Grant

• Current Assignee: Ranpak Corp. (Ranpak Holdings Corp.)
• Original Assignee: Ranpak Corp. (Ranpak Holdings Corp.)
• Inventors: Carlson, Daniel L., Gorg, Donald A., Bilkie, Thomas A.
• Primary Examiner(s): Tawfik, Sameh
• Application Number:
  US13/832,044
• Publication Number:
  US 20130196839A1
• Time in Patent Office: 2,202 Days
• Field of Search: 493464
• CPC Class Codes: B31D 2205/0035 as fan folded web
• CPC Class Codes: B31D 2205/0047 Feeding, guiding or shaping the material
• CPC Class Codes: B31D 2205/0082 General layout of the machinery or relative arrangement of its subunits
• CPC Class Codes: B31D 5/0043 including crumpling flat material
• CPC Class Codes: B31D 5/0047 involving toothed wheels

Abstract

A compact dunnage conversion machine includes a converging chute with a restricted inlet, a powered feed assembly with a sealed gearbox, a plurality of interchangeable power supplies, and a restricted outlet chute. The converter can convert a sheet stock material into dunnage for use in packaging one or more objects in a container. The restricted inlet and outlet make it more difficult for foreign objects to enter the converter and disrupt the conversion process. The sealed gearbox interposed between the driving elements of the feed assembly and an electric motor facilitates maintenance and repair of the feed assembly, while also protecting the gears therein. Finally, the power supplies provide electrical power to the motor and can include an electrical storage device, such as a battery, or an alternating-current-to-direct-current converter which is connectable to a source of electricity for supplying that electricity to the motor in an acceptable form.

Claims

1. A dunnage converter for converting a sheet stock material into a relatively less dense dunnage product, comprising a powered feed assembly for feeding the stock material;

the feed assembly having at least one rotatable member, a motor for driving the at least one rotatable member and a gear box interposed between the at least one rotatable member and the motor for transferring rotational motion from the motor to the at least one rotatable member;

the gear box including a gear housing that encloses at least one gear;

the gear housing having a first opening therein for receipt of a shaft of the motor and a second opening for receipt of a shaft for each rotatable member.

2. A converter as set forth in claim 1, wherein the motor shaft is drivably connected to a pinion gear that engages at least one spur gear drivably connected to the shaft of the rotatable member.

3. A converter as set forth in claim 1, wherein the motor shaft passes through one side of the gear housing and the shaft for the rotatable member passes through an opposing side of the gear housing.

4. A converter as set forth in claim 1, wherein the motor is mounted to the gear housing.

5. A converter as set forth in claim 1, wherein the converter has a converter housing that defines a path for sheet stock material to pass between the rotatable member, the gear housing being mounted to the converter housing adjacent the rotatable member.