Membrane cap assembly for oxygen monitors

Details Membrane cap assembly for oxygen monitors Membrane cap assembly for oxygen monitors

1983-04-29

1984-04-24

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204279, G01N 2746

Patent

active

044446462

ABSTRACT:
An improved membrane cap assembly is provided for polaragraphic oxygen sensors in which a preassembled cap is provided with a membrane mounted for receiving the electrodes thereagainst when the assembly is mounted on the sensor body in such a way that the secured portions of the membrane may slide or move in the secured state to accommodate or receive the electrodes. This has the effect of preventing destructive tension forces against the fragile membrane. Also, because of this arrangement, a more effective quantity of electrolyte is retained by the membrane adjacent the electrodes. This, in turn, has the effect of increasing the life of the assembly prior to electrolyte depolarization, and reducing the times necessary to dismantle and replace the assembly with a new cap, and a fresh quantity of electrolyte.

REFERENCES:
patent: 2913386 (1959-11-01), Clark
patent: 3211638 (1965-10-01), Halvorsen
patent: 3445369 (1969-05-01), Porter et al.
patent: 3518179 (1970-06-01), Bleak et al.
patent: 3575836 (1971-04-01), Sternberg
patent: 3666650 (1972-05-01), Doniguian
patent: 4092232 (1978-05-01), Zetter
patent: 4265250 (1981-05-01), Parker
patent: 4359054 (1982-11-01), Leist et al.

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