IP Library Granted Patent US 8,939,278
Granted Patent B2
US 8,939,278 · App. 12/758,846 · Granted Jan 27, 2015

Deconsolidation device for particulate material extrusion pump

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Quick Facts
Patent No.
US 8,939,278
App. No.
12/758,846
Granted
Jan 27, 2015
Kind
B2
Abstract

A deconsolidation device defines a flow path with an inlet which defines a first cross-section generally equivalent to a passageway cross-section of a particulate material extrusion pump and an outlet that defines a second cross-section different than the first cross-section.

Claims (16)

1. A particulate material extrusion pump, comprising

a vertical passageway including a moving vertical wall, said passageway defines a passageway cross-section; and

a deconsolidation device having a stationary non-linear flow path extending from an inlet connected to the vertical passageway to an outlet, said inlet defines a first cross-section generally equivalent to said passageway cross-section and said outlet defines an exit for deconsolidated particulate and has a second cross-section different than said first cross-section.

2. The particulate material extrusion pump as recited in claim 1 , wherein a passageway outlet from said passageway is adjacent to said inlet.

3. The particulate material extrusion pump as recited in claim 1 , wherein said flow path changes direction with respect to an angle of repose defined by the compressed particulate material.

4. The particulate material extrusion pump as recited in claim 1 , wherein said flow path changes direction and increases volume from said inlet to said outlet.

5. The particulate material extrusion pump as recited in claim 1 , wherein said flow path turns through a turning angle of approximately ninety (90) degrees.

6. The particulate material extrusion pump as recited in claim 1 , wherein said flow path turns through a turning angle greater than a ninety (90) degrees.

7. The particulate material extrusion pump as recited in claim 1 , wherein said second cross-section defines an area ratio of 1.4-1.7 relative to said first cross-section.

8. The particulate material extrusion pump as recited in claim 1 , wherein said deconsolidation device is above said passageway with respect to gravity.

9. The particulate material extrusion pump as recited in claim 1 , wherein said flow path defines a J-shape.

10. The particulate material extrusion pump as recited in claim 1 , further comprising a valve within said flow path.

11. The particulate material extrusion pump as recited in claim 1 , wherein said flow path splits from said inlet into a first outlet and a second outlet.

12. A process of deconsolidating a pulverized carbon-based fuel comprising:

conveying compressed particulate along a passageway in a direction; and

changing from the direction of the compressed particulate to a non-linear flow path having an intrados and an extrados that extends between an inlet that communicates with the passageway and an outlet downstream from the inlet, and turning the compressed particulate through a turning angle provided between the inlet and outlet which defines an angle less than said angle of repose, wherein the direction is generally linear, wherein changing the direction occurs downstream of the passageway which includes a moving wall.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Aug 5, 2016
From: U.S. BANK NATIONAL ASSOCIATION
To: AEROJET ROCKETDYNE OF DE, INC. (F/K/A PRATT & WHITNEY ROCKETDYNE, INC.)
Reel/Frame 039597/0890 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 18, 2015
From: AEROJET ROCKETDYNE OF DE, INC.
To: GAS TECHNOLOGY INSTITUTE
Reel/Frame 036395/0477 →
CHANGE OF NAME Recorded Jul 30, 2013
From: PRATT & WHITNEY ROCKETDYNE, INC.
To: AEROJET ROCKETDYNE OF DE, INC.
Reel/Frame 030902/0313 →
SECURITY AGREEMENT Recorded Jun 21, 2013
From: PRATT & WHITNEY ROCKETDYNE, INC.
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 030656/0615 →
SECURITY AGREEMENT Recorded Jun 17, 2013
From: PRATT & WHITNEY ROCKETDYNE, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 030628/0408 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2010
From: FITZSIMMONS, MARK ANDREW
To: PRATT & WHITNEY ROCKETDYNE, INC.
Reel/Frame 024221/0240 →