Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Positioning of a mold part to form a cavity or controlling...
Reexamination Certificate
2011-01-04
2011-01-04
Theisen, Mary Lynn F (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Positioning of a mold part to form a cavity or controlling...
C425S141000, C425S149000
Reexamination Certificate
active
07862753
ABSTRACT:
According to an aspect of the invention, a compression molding method for a cutting insert, in which molding powder filled into a molding space defined by a die, an upper punch, and a lower punch is compression-molded by the upper and lower punches, includes, sliding both the upper and lower punches individually to positions just short of estimated stop positions obtained for design by means of a position controller, and then sliding the punches by means of a load controller so that a predetermined pressure is reached.
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Shindo Kuniyoshi
Yamaguchi Yukihiro
Cooper & Dunham LLP
Theisen Mary Lynn F
Tungaloy Corporation
White John P.
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