Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Reexamination Certificate
2005-04-19
2005-04-19
Dawson, Glenn K. (Department: 3731)
Surgery
Respiratory method or device
Means for removing substance from respiratory gas
C128S200240
Reexamination Certificate
active
06880557
ABSTRACT:
A breathing apparatus (10) including a mouthpiece (13) and a carbon dioxide removal area (18) disposed between the mouthpiece and an air reservoir chamber (19). The chamber is preferably filled with a foam material (27) and is further in communication with ambient air (29) to enable mixing with expired air within the chamber (19). The breathing apparatus (10) is useful for simulating the lower partial pressure of oxygen at high altitude, hence it may be used by athletes for simulating “living at altitude”.
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Dawson Glenn K.
Fahrenheit 212 Limited
Young & Thompson
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