Breathing apparatus and method of use
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 8, 2017
Grant Date -
Feb 19, 2015
app pub date -
Jan 5, 2012
filing date -
Jan 5, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A breathing apparatus includes a source of compressed air and a lung demand valve that receives compressed air from the source. A pneumatic valve assembly is connected between the source and the lung demand valve. The pneumatic valve assembly is moveable between a first closed position that prevents a flow of compressed air to the lung demand valve and a second open position that provides a path for compressed air to flow to the lung demand valve. A mask receives the lung demand valve therein. The mask provides the compressed air to a user and having a first operational mode providing filtered ambient air to the user and a second operational mode providing compressed air to the user. A control device is coupled to the pneumatic valve assembly. The control device detects a condition in the air surrounding the apparatus and controlling the pneumatic valve assembly to move between the first closed and second open position and the mask to operate in a respective one of the first and second operational modes.
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