Gas and liquid contact apparatus – Contact devices – Porous sheet
Patent
1978-01-12
1979-05-22
Chiesa, Richard L.
Gas and liquid contact apparatus
Contact devices
Porous sheet
128186, 261DIG65, B01F 304, A61M 1500
Patent
active
041559614
ABSTRACT:
A respiratory air humidifier comprises a housing having a flow passage therethrough for the flow of respirator air with a respirator air inlet at one end of the flow passage and a respirator air outlet at the other end of the passage. A plurality of U-shape tubules are disposed in the flow passage and they have walls made of a material permeable to water vapor but impermeable to water. A tubule holder plate closes the flow passage and it is provided with a plurality of bores therethrough of a number corresponding to the tubules located at two spaced locations and into which extend the respective ends of the tubules which are sealed at these ends to the tubular holder plate. A water inlet conduit extends into the inlet of the flow passage and connects the respective inlet end of the tubules, and a water discharge conduit extends out of the flow passage inlet for the discharge of the water from the outlet end of the tubules. The construction includes respective air flow conduits connected through the holder plate and having perforations or air openings along their length which are directed over the surfaces of the tubules so as to pickup the water vapor which advances through the tubular walls in order to humidify the respiratory air.
REFERENCES:
patent: 3007679 (1961-11-01), Byerley et al.
patent: 3228877 (1966-01-01), Mahon
patent: 3403531 (1968-10-01), Oesterheld
patent: 3702658 (1972-11-01), McNamara et al.
patent: 3871373 (1975-03-01), Jackson
patent: 3953334 (1976-04-01), Brun et al.
patent: 4010748 (1977-03-01), Dobritz
Chiesa Richard L.
Dragerwerk Aktiengesellschaft
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