Suction apparatus, operated by compressed air, for drawing off dust-laden gases
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United States of America Patent
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-
Jun 18, 1996
Issued Date -
N/A
app pub date -
Apr 26, 1995
filing date -
Oct 14, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for drawing off dust-laden gases, especially in the art of dental technique, has a ring channel (15) which can be loaded with compressed air. The airstream which is provided by a compressed-air nozzle (26) performs an arcuate movement in the ring channel (15), whereby dust-laden gases are drawn in through an annular slit (22) and conveyed to an outlet channel (13). The apparatus is suitable for drawing off gases from containers. The apparatus serves for drawing off dust-laden air which is released when mixing solid substances, for example dental investment material, in a container (10).
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