Clamping device

Work holders – Relatively movable jaws – Means to actuate jaw

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Details

269 20, 269217, 269234, B25B 106

Patent

active

061096024

ABSTRACT:
A clamping device for frictional clamping of a workpiece which includes a clamp element adapted to frictionally clamp a workpiece and a mechanism for moving the clamp element which includes a shape memory alloy adapted to move the clamp element when the shape memory alloy is heated. The shape memory alloy moves the clamp element into a clamped state and/or unclamped state upon heating the shape memory alloy. The clamped element is preferably a super elastic alloy which is naturally oriented in a clamped position for a positive clamp and in an unclamped position for a non-positive clamp.

REFERENCES:
patent: 4802661 (1989-02-01), Jewett, Sr.
patent: 4804171 (1989-02-01), Dornfeld
patent: 4874156 (1989-10-01), Goldzweig
patent: 5197720 (1993-03-01), Renz et al.
patent: 5695393 (1997-12-01), Granziera

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