James Matthew Fields

US Patent:

6503292, Jan 7, 2003

Filed:

Jun 11, 2001

Appl. No.:

09/878785

Inventors:

Marshall A. Klingensmith - New Kensington PA
James R. Fields - Export PA
Michael J. Kinosz - Apollo PA

Assignee:

Alcoa Inc. - Pittsburgh PA

International Classification:

C21D 1100

US Classification:

75386, 75387, 222590, 222594, 266 94

Abstract:

A molten metal treatment furnace ( ) with metal treatment and level control includes a heating chamber ( ) for containing and heating a supply of molten metal ( ), a pump ( ) connected to the heating chamber ( ), a molten metal treatment chamber ( ) located at the outlet of the pump ( ), and a dosing chamber ( ) located downstream and in fluid communication with the molten metal treatment chamber ( ). A trough ( ) is connected to the dosing chamber ( ) for supplying the molten metal ( ) to a downstream process. A molten metal level sensor ( ) is located in the dosing chamber ( ). The pump ( ) is a variable speed pump having a pump inlet ( ) connected to the heating chamber ( ) and configured to pump the molten metal ( ) through the furnace ( ) during operation. The molten metal level sensor ( ) is connected to the pump ( ) for providing a pump speed control signal to the pump ( ). The molten metal level sensor ( ) is configured to monitor the level of the molten metal ( ) in the dosing chamber ( ) and maintain a preset level of the molten metal ( ) in the dosing chamber ( ) by controlling the speed of the pump ( ) with the pump speed control signal.

US Patent:

7917416, Mar 29, 2011

Filed:

Apr 18, 2002

Appl. No.:

10/127121

Inventors:

Jeffrey Quinn - New Canaan CT, US
Philip J. Turbin - New York NY, US
James E. Fields - New York NY, US
Michael V. Crooks - Norwood NJ, US
Joseph Vencil - New York NY, US
Michael W. Emerson - Stony Brook NY, US
James B. Pomeroy - New York NY, US

Assignee:

Credit Suisse (USA), Inc. - New York NY

International Classification:

G06Q 40/00

US Classification:

705 36R, 705 36 T, 705 37

Abstract:

Systems and methods for hedging against stock price fluctuations are provided. These systems and methods are preferably directed towards providing executives holding company stock options with opportunities to limit their exposure to fluctuations in the price of stock issued by such companies. This is established through entering into transactions involving stock options with a counterparty.

US Patent:

8349462, Jan 8, 2013

Filed:

Jan 12, 2010

Appl. No.:

12/657099

Inventors:

Jen C. Lin - Export PA, US
James R. Fields - Export PA, US
Albert L. Askin - Lower Burrell PA, US
Xinyan Yan - Murrysville PA, US
Ralph R. Sawtell - Gibsonia PA, US
Shawn Patrick Sullivan - Oakmont PA, US
Janell Lyn Abbott - New Stanton PA, US

Assignee:

Alcoa Inc. - Pittsburgh PA

International Classification:

B32B 15/04
C22C 21/08
C22C 21/00
B22D 17/00
B22D 25/00
C25D 11/04

US Classification:

4284722, 428332, 428650, 420544, 420548, 420553, 164 761, 164113

Abstract:

Decorative shape cast products and methods, systems, compositions and apparatus for producing the same are described. In one embodiment, the decorative shape cast products are produced from an Al—Ni or Al—Ni—Mn alloy, with a tailored microstructure to facilitate production of anodized decorative shape cast product having the appropriate finish and mechanical properties.

US Patent:

20130160963, Jun 27, 2013

Filed:

Dec 3, 2012

Appl. No.:

13/694457

Inventors:

Jen C. Lin - Export PA, US
James R. Fields - Export PA, US
Albert L. Askin - Lower Burrell PA, US
Xinyan Yan - Murrysville PA, US
Ralph R. Sawtell - Gibsonia PA, US
Shawn Patrick Sullivan - Oakmont PA, US
Janell Lyn Abbott - New Stanton PA, US

Assignee:

ALCOA INC. - Pittsburgh PA

International Classification:

B22D 25/00

US Classification:

164 691, 164 761

Abstract:

Decorative shape cast products and methods, systems, compositions and apparatus for producing the same are described. In one embodiment, the decorative shape cast products are produced from an Al—Ni or Al—Ni—Mn alloy, with a tailored microstructure to facilitate production of anodized decorative shape cast product having the appropriate finish and mechanical properties.

US Patent:

52460550, Sep 21, 1993

Filed:

Sep 6, 1991

Appl. No.:

7/754993

Inventors:

James R. Fields - Export PA
Lawrence W. Cisko - Irwin PA
Robert C. Wallace - New Kensington PA

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B22D 1714

US Classification:

164 61

Abstract:

A vacuum die-casting machine has a bellows forming a sealed enclosure between the rear of the fill chamber and the piston rod. A vacuum is applied to the enclosure during evacuation of the die cavity and charging of the fill chamber with molten metal. As the piston moves forward, an inert gas at about atmospheric pressure is introduced into the enclosure and extends into the feed tube.

US Patent:

53701712, Dec 6, 1994

Filed:

Sep 20, 1993

Appl. No.:

8/124387

Inventors:

James R. Fields - Export PA
Men G. Chu - Export PA
Lawrence W. Cisko - Irwin PA
C. Edward Eckert - Plum Borough PA
Thomas R. Hornack - Lower Burrell PA
Marshall A. Klingensmith - New Kensington PA
Richard A. Manzini - Greensburg PA
M. K. Premkumar - Monroeville PA
Gerald D. Scott - Messena NY
Mohammad A. Zaidi - Monroeville PA

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B22D 1720
B22D 1730

US Classification:

164312

Abstract:

The die casting machine includes a trough containing a supply of molten metal and a feed tube extending into the supply of molten metal in the trough. A flow of molten metal is maintained in the trough past the feed tube independent of the transfer of molten metal through the feed tube. The die casting machine further includes a filtering system.

US Patent:

56974221, Dec 16, 1997

Filed:

May 5, 1994

Appl. No.:

8/238465

Inventors:

Jamal Righi - Murrysville PA
James R. Fields - Export PA
Eric D. Arndt - New Kensington PA

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B22C 908
B22D 1802
B22D 2711

US Classification:

164120

Abstract:

A vacuum die-casting machine has a sprue cavity with sufficient depth facing the shot cylinder that the shot cylinder piston can easily crush with a pressure of less than 1000 psi the thin cylindrical shell of solidified metal which develops into the biscuit, and continue to advance after the die cavity becomes fried with molten metal to inject additional molten metal into the die cavity to make up for shrinkage porosity as the cast part cools. The runner through which the molten metal passes from the sprue cavity into the die cavity has generally spherical reservoirs adjacent circular gates to further assure the supply of the additional molten metal to make up for shrinkage in the part. In addition, the piston can be oil cooled steel to delay formation of the biscuit.

US Patent:

50763440, Dec 31, 1991

Filed:

Mar 7, 1989

Appl. No.:

7/320140

Inventors:

James R. Fields - Export PA
Men G. Chu - Export PA
Lawrence W. Cisko - Irwin PA
C. Edward Eckert - Plum Borough PA
George C. Full - Murrysville PA
Thomas R. Hornack - Lower Burrell PA
Thomas J. Kasun - Pittsburgh PA
Jerri F. McMichael - Pittsburgh PA
Richard A. Manzini - Greensburg PA
Janel M. Miller - Lower Burrell PA
M. K. Premkumar - Monroeville PA
Thomas J. Rodjom - Murrysville PA
Gerald D. Scott - Massena NY
William G. Truckner - Avonmore PA
Robert C. Wallace - New Kensington PA
Mohammad A. Zaidi - Monroeville PA

Assignee:

Aluminum Company of America - Pittsburgh PA

International Classification:

B22D 1808
B22D 1800

US Classification:

164457

Abstract:

This invention provides improved casting processes, equipment, and products. The invention is especially advantageous for die casting.