Plastic article or earthenware shaping or treating: apparatus – Means for molding powdered metal
Reexamination Certificate
2004-10-28
2009-02-24
Gupta, Yogendra (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
Means for molding powdered metal
C425S195000, C425S352000, C425S356000
Reexamination Certificate
active
07494330
ABSTRACT:
The device serves to receive a tool for calibrating of workpieces (83), preferably workpieces manufactured by a powder metallurgical process. On the example shown the tool comprises the lower stamps (77, 78, 79) and the upper stamps (80, 81, 82) located on tool supports (31, 32, 33; 31′, 32′, 33′). These stamps may be moved up and down individually or together parallel to the axis (40). Also movable up and down is the tool support (41) on which, if required, a center pin (85) is mounted. The device is particularly suitable for the calibration of complicated workpieces, such as represented for example by the workpiece (83) having the form of a body of rotation.
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International Search Report for PCT/CH2004/000650, dated Aug. 26, 2005.
Good Hermann
Rauch Peter
Alvier AG PM-Technology
Gupta Yogendra
Nguyen Thu Khanh T
Nixon & Vanderhye P.C.
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