05383448 is referenced by 23 patents and cites 12 patents.

Apparatus for producing a hypoxic gas mixture having a higher nitrogen-to-oxygen ratio than atmospheric air has a diaphragm compressor feeding air under pressure to an oxygen-depleting unit having a perforate tube extending axially of a cylindrical chamber having an outlet in one side. The annular space between the perforate tube and the wall of the chamber is filled with axially extending hollow fibers of poly-4-methyl-penthene-1. Ends of the chamber are closed except for the interiors of the hollow fibers which are open to the atmosphere. The walls of the hollow fibers are more permeable to oxygen than to nitrogen so that part of the oxygen escapes through open ends of the hollow fibers, thereby increasing the nitrogen-to-oxygen content of the gas.

Title
Apparatus for producing a hypoxic gaseous mixture using hollow fibers of poly-4-methyl-penthene-1
Application Number
898072
Publication Number
5383448
Application Date
May 3, 1993
Publication Date
January 24, 1995
Inventor
Regula Staebler
Vernier
CH
Tatiana N Tsyganova
Moscow
RU
Elena N Tkatchouk
Moscow
RU
Agent
Emmanuel Lobata
Assignee
Tradotec
CH
IPC
G05B 1/00
B01D 53/22
A62B 23/02
A62B 7/10
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