Specialized metallurgical processes – compositions for use therei – Processes – Producing or purifying free metal powder or producing or...
Reexamination Certificate
2008-03-18
2008-03-18
Wyszomierski, George P. (Department: 1793)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or purifying free metal powder or producing or...
C075S367000
Reexamination Certificate
active
07344584
ABSTRACT:
A process for the production of extra fine spherical metal powders by chemical vapor deposition and dissolution techniques, including metal carbonyls, wherein the metal containing process gas is propelled upwardly through a heated reactor. By employing an upward gas flow as opposed to the conventional downward gas flow, a closer approximation of theoretical plug-flow velocity profiles are achieved thusly resulting in a desirably narrower size particle distribution obviating or reducing the need for subsequent classification techniques.
REFERENCES:
patent: 1836732 (1931-12-01), Schlecht et al.
patent: 2663630 (1953-12-01), Schlecht et al.
patent: 2851347 (1958-09-01), Schlect et al.
patent: 3220875 (1965-11-01), Queneau
patent: 3367768 (1968-02-01), West et al.
patent: 3702761 (1972-11-01), Llewelyn
patent: 4673430 (1987-06-01), Pfeil
patent: 4732110 (1988-03-01), Parsons
patent: 4808216 (1989-02-01), Kageyama et al.
patent: 4936250 (1990-06-01), Wiseman et al.
patent: 5085690 (1992-02-01), Ebenhoech et al.
patent: 5853451 (1998-12-01), Ishikawa
patent: 6168752 (2001-01-01), Kagohashi et al.
patent: 6235077 (2001-05-01), Kagohashi et al.
patent: 6391084 (2002-05-01), Ito et al.
patent: 6402803 (2002-06-01), Katayama et al.
patent: 6454830 (2002-09-01), Ito et al.
patent: 6494931 (2002-12-01), Mukuno et al.
patent: 2336863 (2000-12-01), None
patent: 0067936 (2000-11-01), None
Coley Kenneth Stark
Markarian Armen
Saberi Shadi
Shaubel Randy
Stefan Rinaldo A.
Inco Limited
Steen Edward A.
Wyszomierski George P.
LandOfFree
Process for producing metal powders does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for producing metal powders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing metal powders will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2785085