Speaking and hearing system for breathing apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 17, 1989
Grant Date -
N/A
app pub date -
Mar 18, 1987
filing date -
Mar 19, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A speaking and hearing system for respirators, where the apparatus wearer is connected to a respiratory gas supply independent of the ambient air. A suppression, independent of acoustic signals, of the breathing noises of the apparatus wearer is provided by a switch device located in the respiratory gas line which reacts to the respiratory gas stream for the suppression of the breathing noises.
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Family
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Cited Art Landscape
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