Document Type and Number:
Japanese Patent JPS5245158
Kind Code:
B2
Abstract:
Breathing apparatus which incorporates a sensing device operable to adjust the amount of breather's exhaled gas captured in a gas collector section as a direct function of flow rate and volume of the previous inhalation. The amount of exhaled gas captured is sufficiently low in carbon dioxide (CO2) content to permit rebreathing on the next inhalation, at which time the sensor again adjusts the volume of exhaled gas to be captured. In the one embodiment, a fire fighter's breathing system is described wherein the gas collector section is integral with the breathing mask worn by the fire fighter.
Application Number:
JP12727474A
Publication Date:
November 14, 1977
Filing Date:
November 06, 1974
Export Citation:
International Classes:
A62B7/02; A62B7/00; A62B7/04; B63C11/24