Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Reexamination Certificate
2005-07-19
2005-07-19
Andrews, Melvyn (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
C075S010650, C420S418000, C420S590000
Reexamination Certificate
active
06918942
ABSTRACT:
Titanium-aluminum alloy is prepared as a master alloy, and the aluminum master alloy and a pure titanium material are melted by an electron beam to yield titanium alloy.
REFERENCES:
patent: 4108644 (1978-08-01), Walberg et al.
patent: 4794979 (1989-01-01), Gassner et al.
patent: 6004368 (1999-12-01), Chandley et al.
patent: 04-158955 (1992-06-01), None
Hatta Yoshihiro
Sakai Toshihiko
Sannohe Takeshi
Shiraki Takeshi
Tada Osamu
Andrews Melvyn
Antonelli Terry Stout & Kraus LLP
Toho Titanium Co., Ltd.
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