Plastic article or earthenware shaping or treating: apparatus – Stock pressurizing means operably associated with downstream... – Including auxiliary shaping means associated with molding...
Reexamination Certificate
2011-08-16
2011-08-16
Gupta, Yogendra N (Department: 1744)
Plastic article or earthenware shaping or treating: apparatus
Stock pressurizing means operably associated with downstream...
Including auxiliary shaping means associated with molding...
C156S089220, C156S252000, C156S268000, C156S285000, C264S177120, C425S467000
Reexamination Certificate
active
07997888
ABSTRACT:
A die for forming a honeycomb structure is provided with back pores through which a forming material is introduced and slits through which the forming material is extruded into a lattice-like shape, and the die comprises a first plate-like member made of a super hard alloy containing tungsten carbide and a bonding agent and provided with the back pores extending in a thickness direction; and a second plate-like member bonded to the first plate-like member, made of the super hard alloy containing tungsten carbide and the bonding agent, and provided with the slits connected to the back pores, wherein the bonding agent is dispersed in a lesser amount in a bonded part between the first plate-like member and the second plate-like member than in the other part.
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Kitamura Kazumasa
Nagae Tomoki
Burr & Brown
Gupta Yogendra N
Leyson Joseph
NGK Insulators Ltd.
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