Metal deforming – With means to drive tool – With means to selectably control movement of tool
Reexamination Certificate
2007-12-24
2010-11-02
Jones, David B (Department: 3725)
Metal deforming
With means to drive tool
With means to selectably control movement of tool
C072S437000, C072S453130, C072S472000, C060S414000, C060S431000, C083S552000, C083S563000, C029S03300H, C029S036000
Reexamination Certificate
active
07823434
ABSTRACT:
In conventional ram-driven presses, the downward stroke of the ram into a tool causes acceleration of the tool, thereby facilitating an operation on a workpiece by the tip of the tool. While the ram stroke is found to impart sufficient dynamic energy to the tool to facilitate the necessitated operation by the tool tip, there are other more efficient, and in turn, more effective, means and methods of actuating the tool tip, with such means and methods being facilitated from energy derived from the tool's acceleration or from energy from other external sources.
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PCT Application No. PCT/US2008/061743, International Search Report and Written Opinion dated Jul. 9, 2008, 10 pages.
Lee Brian J.
Shimota Jon M.
Fredrikson & Byron , P.A.
Jones David B
Wilson Tool International Inc.
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