Multiple zone heating of molds

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4621995
SERIAL NO

06789197

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Abstract

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A molding machine has a valve assembly that includes means for selectively heating or cooling a mold by controlling flow of gas through an array of gas impingement jets disposed adjacent the backside of a mold surface to regulate the temperature over respective first and second areas of the mold surface. Gas heating and cooling circuits include two drive cylinder regulated plate valves for supplying gas at the gas impingement jet nozzles associated with the mold.

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Patent Owner(s)

Patent OwnerAddress
EX-CELL-O CORPORATION2855 COOLIDGE TROY MI 48084

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wersosky, John M Dover, NH 4 81

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