Preparation of alloys by the Armstrong method

Specialized metallurgical processes – compositions for use therei – Processes – Producing or purifying free metal powder or producing or...

Reexamination Certificate

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C075S367000, C075S617000, C075S620000, C423S076000, C423S084000, C423S297000, C423S411000, C423S440000

Reexamination Certificate

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07041150

ABSTRACT:
A method and apparatus for making alloys or ceramics by the subsurface injection of an equilibrium vapor of a boiling liquid of the ceramic or alloys constituents is disclosed. Various powders and products are disclosed.

REFERENCES:
patent: 2607675 (1952-08-01), Gross
patent: 3085872 (1963-04-01), Griffiths
patent: 4070252 (1978-01-01), Bonsack
patent: 5779761 (1998-07-01), Armstrong et al.
patent: 5958106 (1999-09-01), Armstrong et al.
patent: 6409797 (2002-06-01), Armstrong et al.
patent: 90840 (1958-01-01), None

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