Method for thermoforming twin sheet workpiece
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United States of America Patent
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Apr 30, 2002
Grant Date -
N/A
app pub date -
Nov 17, 1999
filing date -
Nov 17, 1999
priority date (Note) -
Expired
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Abstract
A twin sheet thermoforming method and apparatus of a type using a rotary wheel to carry each of a series of clamping frames for releasably holding sheets to be formed through successive processing stations. The clamping frames can be shuttled on the wheel to be alternatively located for alignment with one of two forming tooling sets at a forming station, and to be shiftable at an unload-load station so that unloading and loading do not occur at the same location.
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