Gas detection unit

Chemistry: electrical and wave energy – Processes and products – Vacuum arc discharge coating

Patent

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Details

G01N 2728, G01N 2754

Patent

active

043222781

ABSTRACT:
A wick system for a hydrazine gas detection cell is provided to enhance and sustain the connection between the electrodes of the cell. The wick system of the invention absorbs the electrolyte which may be potassium hyroxide, for example, and by capillary action provides a continuous electrolyte path between the electrodes. The wick may be in the form of a flat piece extending in one plane for those cells having all electrodes positioned at one end thereof. Alternatively, the wick may be substantially tubular to extend from one end of a cylindrical electrolyte containing chamber to another, for a cell having electrodes positioned at each end thereof. Additionally, the wick may extend from one end of the cell to the other in a folded bellows-like form. The wick system is comprised of a material which withstands the alkaline environment of the required electrolyte, while at the same time providing the proper wetting action to provide a continuous electrolyte path between the electrodes.

REFERENCES:
patent: 3177269 (1965-04-01), Nowak et al.
patent: 3284541 (1966-11-01), Stanton et al.
patent: 3776832 (1973-12-01), Oswin et al.
patent: 3824167 (1974-07-01), Oswin et al.
patent: 3849201 (1974-11-01), Kordesch
patent: 3909386 (1975-09-01), Oswin et al.
patent: 3992267 (1976-11-01), Oswin et al.

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