Edward H Mccormick

US Patent:

7354472, Apr 8, 2008

Filed:

Jun 21, 2004

Appl. No.:

10/872998

Inventors:

Leonid Natan Shekhter - Ashland MA, US
Edward V. McCormick - Churchville NY, US
Leah F. Simkins - Arlington MA, US
Edward K. Schiele - Libertyville IL, US

Assignee:

H.C. Starck Inc.

International Classification:

B22F 9/20

US Classification:

75351, 75369, 42359417

Abstract:

A method of producing a refractory metal powder by (A) combining (i) an oxide particle component and (ii) a reducing agent; (B) forming a substantially uniform mixture of (i) and (ii); (C) continuously feeding the mixture into a furnace; (D) igniting the mixture at a reaction zone and starting a reaction that is sufficiently exothermic to form a high temperature flash; (E) starting a reaction that is sufficiently exothermic to form a high temperature self-sustaining flash; and (F) producing a free-flowing reduced oxide powder.

US Patent:

D2922452, Oct 13, 1987

Filed:

Jun 3, 1985

Appl. No.:

6/740245

Inventors:

Edward J. McCormick - Brookhaven PA

Assignee:

Clement Communications, Inc. - Concordville PA

US Classification:

D 6301