Adjustable length heat tunnel for varying shot lengths
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United States of America Patent
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Apr 13, 1999
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N/A
app pub date -
Apr 17, 1996
filing date -
Apr 17, 1996
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Abstract
An improved heat tunnel is provided for use with a thermo-forming press. The heat tunnel includes a first oven body having a heat source therein for applying heat to a web of thermo-formable material as the web is supported therein. The tunnel includes a second oven body having a heat source therein for applying heat to a web of thermo-formable material as the web is supported therein. Furthermore, the tunnel has an adjustable length tunnel body carried between the first and second oven bodies and configurable to adjust the overall length of the heat tunnel so as to realize a desired delivery of heat to a web of material being passed there through.
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