Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Patent
1982-07-27
1984-03-27
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
429 53, 429 56, H01M 1206
Patent
active
044395000
ABSTRACT:
The disclosure depicts a novel gas switch comprising a membrane having at least one passageway separating a first gas containing region from a second gas containing region. The gas switch also comprises a liquid having a low vapor pressure contained at least within the passageway of the membrane. The liquid is contained in the passageway when a pressure difference between the first and second regions is less than a first predetermined value, thereby preventing a gas exchange between the first and second regions. When the pressure difference across the membrane exceeds a second predetermined value the liquid substantially flows out of the passageway, thereby opening the passageway for a gas exchange between the first and second regions; and when the pressure difference across the membrane is reestablished at a value less than the first predetermined value, the fluid flows back into the passageway thereby closing the passageway and ending the gas exchange between the first and second region. In some embodiments the first predetermined value of pressure may be substantially identical to the second predetermined value of pressure.
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Cech Jay M.
Gibbard Henry F.
Murray Richard C.
Garrett John R.
Gould Inc.
Sachs Edward F.
Tiernan John C.
Walton Donald L.
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