Disposable carbon dioxide absorber
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 21, 1991
Grant Date -
N/A
app pub date -
Apr 23, 1990
filing date -
Apr 23, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A disposable CO.sub.2 absorber for applications in rebreathing systems uses a flexible bag-like pouch to contain CO.sub.2 absorbent granules. The pouch includes an intake port having a one-way valve at the top of the pouch and an outlet or exhaust port including a perforated cylindrical tube or perforated disk in the bottom of the pouch. Exhaled gas containing CO.sub.2 passes through the one-way valve at the intake port and contacts the absorbent granules where a chemical reaction bonds the CO.sub.2 with the granules. The residual gas, substantially free of CO.sub.2, passes out of the pouch through the exhaust ports for rebreathing by the user. The flexure of the pouch increases the efficiency with which the CO.sub.2 is absorbed.
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