Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Post sintering operation
Reexamination Certificate
2007-01-23
2007-01-23
King, Roy (Department: 1742)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Post sintering operation
C419S038000
Reexamination Certificate
active
11078262
ABSTRACT:
The temporary compacting of the powder for use in sintering is carried out, the temporary sintering is carried out, the main compacting is carried out, the main sintering is carried out, and the thickness of the radius direction of the base part of the cam before the heat-treatment is set to 3.0 mm or more.
REFERENCES:
patent: 3940269 (1976-02-01), Bergstrom
patent: 4388114 (1983-06-01), Suganuma et al.
patent: 6338747 (2002-01-01), Kosco
patent: 08-295904 (1996-11-01), None
Takamura Hiroyuki
Takeguchi Shunsuke
King Roy
Ladas & Parry LLP
McNelis Kathleen
Nippon Piston Ring Co. Ltd.
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