IP Library Granted Patent US 8,245,759
Granted Patent B2
US 8,245,759 · App. 12/134,270 · Granted Aug 21, 2012

Ladle for molten metal

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Quick Facts
Patent No.
US 8,245,759
App. No.
12/134,270
Granted
Aug 21, 2012
Kind
B2
Abstract

An apparatus and method for quiescently filling of a ladle with molten material and transferring of the molten material from the ladle is disclosed, wherein the molten material is transferred from the ladle to a casting mold to minimize turbulence in the molten material to minimize defects in a desired cast object.

Claims (13)

1. A method of transferring a molten material to a casting mold, the method comprising:

providing a ladle having a hollow interior adapted to receive a molten material therein, the ladle having an aperture formed therein, wherein the ladle is adapted to rotate about an eccentric axis when filled with the molten material and wherein the pivoting about the eccentric axis minimizes a drop of the molten material into said ladle during a filling thereof with the molten material;

providing a mold having a cavity formed therein adapted to receive the molten material, wherein the ladle abuts the mold and the mold and the ladle are cooperatively rotated to pour the molten material from the ladle into the cavity of the mold, wherein the mold is without a gate system;

filling the ladle with the molten material;

positioning the aperture of the ladle adjacent the cavity of the mold; and

rotating the mold and ladle to facilitate the pouring of the molten material from the ladle into the cavity of the mold.

2. A casting apparatus comprising:

a ladle having a hollow interior adapted to receive a molten material therein, wherein said ladle is adapted to pivot about an eccentric axis when filled with the molten material and wherein the pivoting about the eccentric axis minimizes a drop of the molten material into said ladle during a filling thereof with the molten material; and

a mold having a cavity formed therein adapted to receive the molten material, wherein said ladle abuts said mold, and said mold and said ladle are cooperatively rotated to pour the molten material from said ladle into the cavity of said mold, wherein said mold is without a gate system.

3. A casting apparatus comprising:

a ladle having a hollow interior adapted to receive a molten material therein, wherein said ladle is adapted to pivot about an eccentric axis when filled with the molten material and wherein the pivoting about the eccentric axis minimizes a drop of the molten material into said ladle during a filling thereof with the molten material;

a mold having a cavity formed therein adapted to receive the molten material, wherein said ladle abuts said mold, and said mold and said ladle are cooperatively rotated to pour the molten material from said ladle into the cavity of said mold; and

a mold feature having a height greater than a height of a portion of the cavity of said mold disposed adjacent said ladle.

Assignments (12)
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2014
From: WILMINGTON TRUST COMPANY
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 034384/0758 →
CHANGE OF NAME Recorded Feb 10, 2011
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 025781/0211 →
SECURITY AGREEMENT Recorded Nov 8, 2010
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: WILMINGTON TRUST COMPANY
Reel/Frame 025324/0475 →
RELEASE OF SECURITY INTEREST Recorded Nov 5, 2010
From: UAW RETIREE MEDICAL BENEFITS TRUST
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025315/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 4, 2010
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025245/0909 →
SECURITY AGREEMENT Recorded Aug 28, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UAW RETIREE MEDICAL BENEFITS TRUST
Reel/Frame 023162/0187 →
SECURITY AGREEMENT Recorded Aug 27, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 023156/0215 →
RELEASE OF SECURITY INTEREST Recorded Aug 21, 2009
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023126/0914 →
RELEASE OF SECURITY INTEREST Recorded Aug 21, 2009
From: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023155/0769 →
SECURITY AGREEMENT Recorded Apr 16, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
Reel/Frame 022554/0538 →
SECURITY AGREEMENT Recorded Feb 3, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 022201/0363 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2008
From: GOETTSCH, DAVID D., DR.
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 021258/0499 →