Pressure demand regulator with automatic shut-off
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United States of America Patent
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-
Feb 28, 1984
Issued Date -
N/A
app pub date -
Aug 23, 1982
filing date -
Sep 10, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure demand breathing apparatus having a facemask connected through a pressure demand regulator with a shut-off device that operates automatically to interrupt the supply of air to the mask when the facemask is removed. The device operates with a time delay to permit momentary user-induced high flow rates without interrupting the supply.
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Family
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