Metal deforming – By use of non-deforming work-gripping clamp and relatively... – With interrelated clamp closer and tool mover
Reexamination Certificate
2007-02-20
2007-02-20
Crane, Daniel C. (Department: 3725)
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
With interrelated clamp closer and tool mover
C072S385000, C072S414000, C072S379200
Reexamination Certificate
active
11001877
ABSTRACT:
A press forming apparatus, for metal separators for fuel cells, has a pair of peripheral portion holding dies which hold a peripheral portion of a material and are movable toward and counter to each other; a pair of intermediate portion forming dies for forming a intermediate portion of the material, which are disposed inside the peripheral portion holding dies and are movable toward and counter to each other; and a pair of center portion forming dies for forming a center portion of the material, which are disposed inside the intermediate portion forming dies and are movable toward and counter to each other, wherein one of the peripheral portion holding dies and one of the intermediate portion forming dies are fixed to each other, one of the center portion forming dies is movable with respect to one of the intermediate portion forming dies toward the material, the other intermediate portion forming die and the other center portion forming die are fixed to each other, and the other intermediate portion forming die is movable with respect to the other peripheral portion holding die.
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Enjoji Naoyuki
Kawamura Toshiki
Kikuchi Hideaki
Monda Takanori
Crane Daniel C.
Fish & Richardson P.C.
Honda Motor Co. Ltd.
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