Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Reexamination Certificate
2003-07-15
2008-11-25
Banks, Derris H. (Department: 3725)
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
C072S396000, C072S383000
Reexamination Certificate
active
07454943
ABSTRACT:
A bottom tool/bending die for use in sheet metal forming. The bottom tool includes a pair of movable dies that provide substantially continuous support of a work piece as it is being deformed. Each die includes an upper surface configured to contact the work piece and having an inner and an outer edge. As the die moves in the tool, the inner edge of the upper surface is closer to a center of rotation of the die than the outer edge. In some embodiments, the upper surfaces of the dies are shaped so that a fixed separation is maintained between the inner edges of the dies as they rotate. In at least one embodiment, sector gears are used to control the motion of the dies.
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Fab Supply Incorporated. ND. “Press Brake Tooling for the Sheet Metal Industry.” 6pp. Available http://www.fabsupplyinc.com/index.php?page=shop/browse—rolla&category—id=9269d333.
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Anderson Ronald M.
Banks Derris H.
Bonk Teresa
Tooling Innovations, Inc.
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