Walter J Evans

US Patent:

58876464, Mar 30, 1999

Filed:

Jan 16, 1997

Appl. No.:

8/784328

Inventors:

Walter Evans - Plymouth MI
Leslie Terner - West Bloomfield MI
Frank Tibaudo - Grosse Pointe Woods MI

Assignee:

Ford Global Technologies, Inc. - Dearborn MI

International Classification:

B22C 902
B22C 908

US Classification:

164364

Abstract:

A portable sand mold metal treating system having sand cope and sand drag portions, the treating system being attachable to a sand mold metal casting system. The treating system comprises (a) a sand cope portion and a sand drag portion mateable at one or more parting planes, the cope portion containing a tapered entry sprue which extends to the parting plane and contains a slag chamber lying along the parting plane, the drag containing a runner that communicates with the bottom of the slag trap lying along the parting plane, the drag portion containing a sprue well, a reaction chamber having its top lying in the parting plane and overlapping the slag trap to be open thereto, a runner that provides a path for metal flow between the sprue well and one side of the reaction chamber; (b) a mixing channel in the drag portion communicating with an opposite side of the bottom of the slag trap; (c) a tapered secondary sprue extending from the mixing channel to an exterior side of the system to define an outlet port at a level below the reaction chamber; and (d) a flow choke in the secondary sprue for restricting the flow of metal from the mixing channel to ensure adequate mixing and homogenization of the treated metal therein.

US Patent:

51203723, Jun 9, 1992

Filed:

Nov 8, 1990

Appl. No.:

7/610647

Inventors:

Chia M. Yen - West Bloomfield MI
Walter J. Evans - Canton MI

Assignee:

Ford Motor Company - Dearborn MI

International Classification:

C22F 104
C22C 2112

US Classification:

420537

Abstract:

An aluminum casting alloy consisting of, by weight, of 7. 0-13. 0% copper, 0. 4-1. 2% manganese, 0. 21-40% vanadium, 0. 31-0. 70% zirconium; impurities limited to: less than to 0. 6% Si, less than 0. 8% Fe, less than 0. 2% zinc, less than 0. 1% Mn, less than 0. 2% Ni, and the remainder being essentially aluminum. There is an absence of titanium, cobalt, molybdenum, tungsten, chromium, boron, tantalum, and niobium. The alloy has, at room temperature, a UTS of about 61 ksi, a YS of about 49 ksi, a tensile elongation of about 6%, and tensile modulus elasticity of about 11. 5 MSI, a compressive yield strength of about 53 ksi, a compressive modulus of elasticity of about 18 MSi; high temperature physical properties at 500. degree. F. , after 1000 hours exposure to 500. degree. F. , comprise a tensile strength of 33 ksi or greater, a tensile yield strength of 23 ksi or greater, a tensile elongation of about 9%, and tensile modulus of elasticity of 10 msi.

US Patent:

51157705, May 26, 1992

Filed:

Dec 5, 1991

Appl. No.:

7/802594

Inventors:

Chia M. Yen - West Bloomfield MI
Walter J. Evans - Canton MI

Assignee:

Ford Motor Company - Dearborn MI

International Classification:

C22F 104
C22C 2112
F02F 300

US Classification:

1231936

Abstract:

An aluminum casting alloy consisting of, by weight, of 7. 0-13. 0% copper, 0. 4-1. 2% manganese, 0. 21-0. 40% vanadium, 0. 31-0. 70% zirconium; impurities limited to: less than to 0. 6% Si, less than 0. 8% Fe, less than 0. 2% zinc, less than 0. 1% Mn, less than 0. 2% Ni, and the remainder being essentially aluminum. There is an absence of titanium, cobalt, molybdenum, tungsten, chromium, boron, tantalum, and niobium. The alloy has, at room temperature, a UTS of about 61 ksi, a YS of about 49 ksi, a tensile elongation of about 6%, and tensile modulus elasticity of about 11. 5 MSi, a compressive yield strength of about 53 ksi, a compressive modulus of elasticity of about 18 MSi; high temperature physical properties at 500. degree. F. , after 1000 hours exposure to 500. degree. F. , comprise a tensile strength of 33 ksi or greater, a tensile yield strength of 23 ksi or greater, a tensile elongation of about 9%, and tensile modulus of elasticity of 10 msi.

US Patent:

41086376, Aug 22, 1978

Filed:

Jul 25, 1977

Appl. No.:

5/819017

Inventors:

Adolf Hetke - Livonia MI
Walter J. Evans - Ann Arbor MI

Assignee:

Ford Motor Company - Dearborn MI

International Classification:

C21C 700

US Classification:

75 53

Abstract:

A method of treating molten metals is disclosed which employs a solid sheathless flexible strand containing particles of the treating agent uniformly suspended in a binder matrix, the latter being consumable or vaporizable upon contact with molten metal. Positive and predetermined solution conditions of the treating agent are assured by regulating the molten metal flow velocity to be at or above a predetermined minimum and the strand injection rate to be within defined limits.

US Patent:

40884775, May 9, 1978

Filed:

Oct 6, 1976

Appl. No.:

5/730095

Inventors:

Adolf Hetke - Livonia MI
Walter J. Evans - Ann Arbor MI

Assignee:

Ford Motor Company - Dearborn MI

International Classification:

C22C 3308

US Classification:

75130R

Abstract:

A method of treating molten metals is disclosed which employs a solid sheathless flexible strand containing particles of the treating agent uniformly suspended in a binder matrix, the latter being consumable or vaporizable upon contact with molten metal. Positive and predetermined solution conditions of the treating agent are assured by regulating the molten metal flow velocity to be at or above a predetermined minimum and the strand injection rate to be within defined limits.