The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 18, 2007

Filed:

Apr. 04, 2005
Applicants:

Tajpreet Singh, Burlington, CA;

Scott Thomas Campbell, Milton, CA;

Thomas Francis Stephenson, Toronto, CA;

Ouan Min Yang, Mississauga, CA;

Inventors:

Tajpreet Singh, Burlington, CA;

Scott Thomas Campbell, Milton, CA;

Thomas Francis Stephenson, Toronto, CA;

Ouan Min Yang, Mississauga, CA;

Assignee:

Inco Limited, Toronto, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 1/00 (2006.01); B22F 3/12 (2006.01); B22F 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

In contrast to current industrial practice where alloying powders are added to starting powder metallurgy compositions either as powder mixtures or fully prealloyed powders, the present invention posits a diffusion bonded nickel-copper precursor additive mixture for direct one step addition to the starting powder metallurgy master blend composition. Segregation and dusting are substantially reduced and the mechanical properties of the resultant compact are improved.


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