IP Library Granted Patent US 7,976,239
Granted Patent B2
US 7,976,239 · App. 12/888,958 · Granted Jul 12, 2011

End of a moldboard positioned proximate a milling drum

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Quick Facts
Patent No.
US 7,976,239
App. No.
12/888,958
Granted
Jul 12, 2011
Kind
B2
Abstract

In one aspect of the present invention, the present invention is a system for removing aggregate from a paved surface. The system includes a motorized vehicle with a degradation drum that is connected to the underside of the vehicle. The degradation drum is enclosed by a milling chamber. The milling chamber is defined by having a plurality of plates, including a moldboard positioned rearward of the milling drum. The moldboard comprises an end that is disposed opposite the underside. The end comprises a section that is proximate the milling drum.

Claims (22)

1. A system for removing aggregate from a paved surface, comprising:

a vehicle comprising a degradation drum connected to an underside of the vehicle;

the degradation drum is enclosed by a milling chamber;

the milling chamber being defined by a plurality of plates including a moldboard configured to reside rearward of the degradation drum;

the milling chamber further comprising an opening configured to receive an end of a conveyor;

picks secured to the degradation drum are configured to lift broken aggregate from a paved surface and allow the broken aggregate to fall onto the conveyor;

the conveyor is configured to remove the aggregate from the milling chamber; and

the moldboard configured to rotate about degradation drum.

2. The system of claim 1 , wherein the moldboard is curved into the milling chamber.

3. The system of claim 1 , wherein a curvature of the moldboard generally follows a contour of the degradation drum.

4. The system of claim 1 , wherein the moldboard comprises a plurality of nozzles disposed proximate the end of the moldboard and is in communication with a fluid reservoir through a fluid pathway.

5. The system of claim 4 , wherein the moldboard comprises a plurality of nozzles disposed proximate the end of the moldboard and is in communication with the fluid reservoir through the fluid pathway and a blower proximate the end of the moldboard and is in communication with a compressor through a gas pathway.

6. The system of claim 1 , wherein a lower extension of the moldboard rotates independent of an upper portion of the moldboard.

7. The system of claim 6 , wherein a gas pathway moves with the lower extension.

8. The system of claim 7 , wherein the gas pathway comprises a flexible hose configured to accommodate a movement of the moldboard.

9. The system of claim 6 , wherein the fluid pathway moves with the lower extension.

10. The system of claim 9 , wherein the fluid pathway comprises a flexible hose configured to accommodate a movement of the moldboard.

11. The system of claim 6 , wherein the upper portion of the moldboard also rotates about an axis of the degradation drum.

12. The system of claim 6 , wherein at least one hydraulic arm is configured to pull up on the lower extension.

13. The system of claim 1 , wherein a rack and pinion assembly is configured to guide the moldboard as it rotates.

14. The system of claim 13 , wherein at least one pinion of the rack and pinion assembly is configured to be actively driven.

15. The system of claim 1 , wherein the moldboard is made of a single piece.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 7, 2015
From: HALL, DAVID R.
To: CATERPILLAR SARL
Reel/Frame 036281/0258 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2015
From: HALL, DAVID R.
To: NOVATEK IP, LLC
Reel/Frame 036109/0109 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 11, 2013
From: JEPSON, JEFF; MORRIS, THOMAS; NIELSON, JOSEPH; CROCKETT, RONALD; PETERSON, GARY; WAHLQUIST, DAVID
To: HALL, DAVID R.
Reel/Frame 030586/0404 →
Continuity (6)
Continuation 12888876 · Sep 23, 2010
Continuation In Part 12145409 · Jun 24, 2008
Continuation In Part 11566151 · Dec 1, 2006
Continuation In Part 11668390 · Jan 29, 2007
Continuation In Part 11644466 · Dec 21, 2006
Related Publication 20110013984A1 · Jan 20, 2011