Shape-memory alloy resetting method
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United States of America Patent
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Jul 19, 1988
Grant Date -
N/A
app pub date -
Oct 14, 1986
filing date -
Oct 14, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The shape or configuration of an article made of shape-memory alloys, such as an eyeglass temple piece, or a hand held tool, is adjusted or readjusted to suit the wearer or user. While the shape-memory alloy of the article is in its martensitic state, the article may be readily deformed from its standard shape due to the alloy's low strength and malleability. The article is then confined or restrained in the customized shape so that upon heating the alloy does not return to its original austenitic or memory condition. Adequate heat is then supplied to the article to reform the austenitic state of the alloy in the desired customized shape. Preferably, the electrical resistance of the alloy is used to attain such internal heating to the resetting temperature of the article by current flow through the alloy.
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