Plastic article or earthenware shaping or treating: apparatus – Means for molding powdered metal
Reexamination Certificate
2008-07-29
2008-07-29
Gupta, Yogendra (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
Means for molding powdered metal
C425S128000, C425S193000, C425S355000, C425SDIG047
Reexamination Certificate
active
07404707
ABSTRACT:
A hydraulic sample mounting press utilizes a face seal against the top face of a molding cylinder. The face seal employs a hydraulic cylinder to press a disk-shaped surface of a cap piece against the top annular face of the mold cylinder for a metallographic mounting press. The face seal cylinder is mounted to a hydraulic fluid column that allows the face seal to rotate away from the mold cylinder for access to the molding cylinder and to rotate into place when a metallographic mount is to be molded.
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patent: 3958910 (1976-05-01), Wilde
patent: 4055205 (1977-10-01), Withoff et al.
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Cox Matthew D.
Tate Robert S.
Warren Dwight F.
Gupta Yogendra
Leco Corporation
Nguyen Thu Khanh T
Price Heneveld Cooper DeWitt & Litton LLP
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