Confinement method and device in particular for a special atmosphere in a space for continuously processing articles fed therethrough
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United States of America Patent
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Aug 10, 1999
Grant Date -
N/A
app pub date -
Aug 1, 1997
filing date -
Feb 2, 1995
priority date (Note) -
Expired
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Abstract
The present invention relates to a method for confining an atmosphere (B) in a space (4) communicating with its surroundings via at least one opening. A gas curtain (1+2) comprising a low-velocity jet (2) and a high-velocity jet (1) is generated at said opening. Characteristically, a fraction of the flow in said low-velocity jet (2) is injected into the confined atmosphere (B) and adds to the induced flowrate of said low-velocity jet (2), the size of said fraction being variable depending on the pressure within said space (4). The present invention also relates to a device for carrying out said method.
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