Specialized metallurgical processes – compositions for use therei – Processes – Producing solid particulate free metal directly from liquid...
Reexamination Certificate
2006-03-08
2009-06-16
Wyszomierski, George (Department: 1793)
Specialized metallurgical processes, compositions for use therei
Processes
Producing solid particulate free metal directly from liquid...
C075S334000
Reexamination Certificate
active
07547346
ABSTRACT:
Methods, apparatuses and systems for producing powder particles of extremely small, highly uniform spherical shape and high sphericity, composed of metal including single metals and alloys, including nanocomposite structures, using a self-assembling procedure. The invention further includes the produced spherical particles. The metal spherical particles are produced whereby molten metal, alloys or composites are directed onto a fast-rotating disk in an atmosphere containing one or more inert gases and small amounts of an oxidizing gas and the molten metal drops are dispersed as tiny droplets for a predetermined time using centrifugal force within a cooling-reaction gas, and then cooled rapidly to form solid spherical particles. The spherical particles comprise a crystalline, amorphous or porous composition, having a size of 1-300 μm±1% with a uniformity of size being ≦60-70% and a precise spherical shape of less than or equal to ±10%.
REFERENCES:
patent: 3872193 (1975-03-01), Smith
patent: 4613371 (1986-09-01), Cheney et al.
patent: 5147448 (1992-09-01), Roberts et al.
patent: 5242508 (1993-09-01), McCallum et al.
patent: 5266098 (1993-11-01), Chun et al.
patent: 5340377 (1994-08-01), Accary et al.
patent: 5738705 (1998-04-01), Anderson et al.
patent: 5855642 (1999-01-01), Miller et al.
patent: 5865873 (1999-02-01), Sekine et al.
patent: 6517934 (2003-02-01), Kishimoto
patent: 6579479 (2003-06-01), Edie et al.
patent: 2001-254103 (2001-09-01), None
Napra Co., Ltd
Westerman, Hattori, Daniels & Adrian , LLP.
Wyszomierski George
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