Underwater breathing apparatus with pressurized snorkel
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United States of America Patent
Stats
-
Sep 7, 1999
Issued Date -
N/A
app pub date -
Jun 28, 1996
filing date -
Sep 28, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An underwater breathing apparatus is provided for delivering air to a diver submerged to a depth between one and 12 feet. A pump delivers air at low pressure via an expandable air hose to a regulator worn by the diver. The air hose provides a reservoir of air for the supply the diver. Upon inhalation by the diver, the air pressure within the diver's lungs is reduced, thereby causing a tilt valve located within the regulator opens to allow air from the air hose to be supplied to the diver until the air pressure within the diver's lungs is equal to the air pressure generated by the pump in the air hose, which in turn causes the tilt valve to close. An exhalation one-way valve is also provided in the regulator to allow the diver to exhale without forcing the exhaled air back into the air hose.
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