Surgery – Respiratory method or device – Combined with or convertible to a nonrespiratory device – or...
Patent
1981-06-15
1982-05-25
Recla, Henry J.
Surgery
Respiratory method or device
Combined with or convertible to a nonrespiratory device, or...
12820528, 12820612, 12820628, 12820712, A62B 700
Patent
active
043311393
ABSTRACT:
An emergency breathing apparatus allows a human user to breathe safely within a structure whose interior is devoid of sufficient breathable air as a result of fire, etc. The apparatus communicates with the soil or waste vent in the structure and includes an air collector disposed for access by the human user within the structure. The air collector allows air to flow from the soil vent into the structure. A breathing mask with an internal diaphragm is coupled to the air collector and allows the user to inhale the air within the air collector and exhale air into the environment. A control valve is disposed between the air collector and the breathing mask and enables air to flow from the air collector into the breathing mask. Accordingly, when the interior environment of the structure is devoid of sufficient breathable air, the human user, may, via the control valve, enable air to flow from the soil vent to the breathing mask and thereafter breathe that air for survival.
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