Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Reexamination Certificate
2011-07-19
2011-07-19
Jones, David B (Department: 3725)
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
C072S388000, C072S389600, C072S396000, C072S413000
Reexamination Certificate
active
07980111
ABSTRACT:
It is difficult to bend materials for forming beyond 180° in terms of bend angle due to the entrant nature of prior press forming arrangements including a press tool with a press recess of a static nature. By providing a press recess which is formed from actuators allowed to dynamically shift about a deflection member it is possible as a press tool engages and forces a material to be formed into the press recess to envelope the press tool and therefore achieve greater than 180° bending angles. The actuators are formed in a stack with alternate left right presentation of shaped receiving apertures which include an actuator surface34engaged by the material to be formed in order to cause the necessary deflections during the pressing process.
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Jones David B
Oliff & Berridg,e PLC
Rolls-Royce plc
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