FREEZING TUNNEL COLD-GAS EXTRACTION HOODS WITH VARIABLE-OPENING EXTRACTORS
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United States of America
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Issued Date -
Mar 26, 2020
app pub date -
Mar 22, 2018
filing date -
Mar 22, 2018
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Abstract
An installation for cryogenic cooling or freezing of products includes: a cryogenic tunnel through which products that are to be cooled or frozen circulate, between an entrance into the tunnel and an exit from the tunnel on a conveyor belt; an upstream extraction hood situated facing the entrance to the tunnel and/or a downstream extraction hood situated facing the exit from the tunnel; and movable blinds or shutters that make it possible to close all or part of a suction cross section of at least one of the said hoods over a width and depth of the conveyor belt.
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