Method and apparatus for providing erasable relief images
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United States of America Patent
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-
Jul 25, 2000
Grant Date -
N/A
app pub date -
Mar 3, 1998
filing date -
Mar 3, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for providing erasable relief images including providing a face surface formed of a temperature sensitive shape memory material. The face surface may be selectively heated to cause the shape memory material to displace and form a predetermined relief image. Alternatively, the shape memory material may be selectively engaged with die elements to form a predetermined relief image. The relief image may be erased by heating the face surface to thereby cause the shape memory material to return to a uniform surface contour, or to soften the shape material sufficiently for it to be engaged and compressed to a predetermined uniform configuration by an erasing element.
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