Focussed ventilation procedure for a work spot and apparatus used in the procedure
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United States of America Patent
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-
Dec 24, 1991
Grant Date -
N/A
app pub date -
Feb 9, 1990
filing date -
Jun 10, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A focussed ventilation method and apparatus for a work space, in the method and apparatus suction is focussed on the source of impurities of the work spot and/or on the source of excess heat, and the operation of the focussed suction is assisted with the air blown from a wide surface area at a low speed from an incoming air means.
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