Rotating cutter head

• US 20030093984A1
• Filed: 09/03/2002
• Published: 05/22/2003
• Est. Priority Date: 08/31/2001
• Status: Active Grant

• Current Assignee: Terry Northcutt
• Original Assignee: Terry Northcutt
• Inventors: Northcutt, Terry
• Granted Patent: US 6,848,244 B2
• Time in Patent Office: Days
• US Class Current: 56/249
• CPC Class Codes: A01G 23/067 by comminuting the tree stumps
• CPC Class Codes: A01G 3/002 for comminuting plant waste comminuting by cutting implements in general B02C18/00
• CPC Class Codes: B02C 13/28 Shape or construction of beater elements
• CPC Class Codes: B02C 18/06 with rotating knives
• CPC Class Codes: B02C 18/18 Knives; Mountings thereof
• CPC Class Codes: B02C 2013/2808 the beater elements are attached to disks mounted on a shaft

Abstract

This is a large rotatable cutter head primarily useful in masticating vegetation ranging from grasses to large trees. The inventive cutter head is typically mounted on an articulating arm on a tractor or tread-based vehicle. Depending upon the size of the arm and its maneuverability, the cutter head may be used to cut and grind vegetation variously from the ground surface to many feet off the ground. The rotatable cutter head assembly includes a number of rotating cutters mounted inside the periphery of the assembled drum and that spin freely outside the diameter of that drum and, upon contact with vegetation, rotate into the drum assembly. The invention includes combinations of the cutter head with the support vehicle or articulating arm and methods of using the cutter head.

Claims

1. A rotatable cutter assembly for cutting vegetation comprising:

(a) rotatable drum assembly having a periphery and supporting a multiplicity of freely rotatable cutter knives interior to the periphery and adapted to allow the rotatable cutter knives to rotate and extend beyond that periphery, and

(b) said multiplicity of freely rotating cutter knives.

2. The rotatable cutter assembly of claim 1 further comprising a drive shaft adapted to rotate said rotatable drum assembly.

3. The rotatable cutter assembly of claim 1 further comprising a drive motor configured to rotate the rotatable drum assembly.

4. The rotatable cutter assembly of claim 3 wherein the drive motor is a hydraulic motor.

5. The rotatable cutter assembly of claim 1 further comprising an articulated arm supporting said rotatable drum assembly and configured to controllably move the rotatable drum assembly in various directions against vegetation.

6. The rotatable assembly of claim 5 further comprising a vehicle suitable for movement over terrain.

7. The rotatable cutter assembly of claim 1 wherein the freely rotating cutter knives are adapted to rotate at least 360°

.

8. The rotatable cutter assembly of claim 1 wherein the freely rotating cutter knives are each single piece.

9. The rotatable cutter assembly of claim 1 wherein the freely rotating cutter knives are each “

Y”

shaped.

10. The rotatable cutter assembly of claim 1 further comprising a housing covering at least a portion of the rotatable drum assembly.