Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1990-02-26
1991-04-30
Kaplan, G. L.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204409, 204433, G01N 2728
Patent
active
050115871
ABSTRACT:
An apparatus for the detection of chemical equalization processes in aqueous solutions, in particular for the determination of pH values and/or redox potentials, is described. The apparatus, a so-called interchangeable probe, includes an essentially cylindrical probe body, with a calibrating chamber and with an immersion pipe axially displaceable in a bore of the probe body and having at its front end a protective cylinder, the area adjacent to the immersion pipe being perforated in a basket-like manner. An electrode is set into the immersion pipe with the head of the electrode being located within the basket like perforated area of the protective cylinder. An annular gap between the immersion pipe and the inner wall of the probe body is sealed by at least three gaskets, located on the inner wall of the probe body. The first gasket is located above the calibrating chamber and the second and the third gaskets are located under the calibrating chamber and the distance between two adjacent gaskets is larger than the length of the perforated area.
REFERENCES:
patent: 2884365 (1959-04-01), Bolt et al.
patent: 4202749 (1980-05-01), Phelps et al.
Ingold Prospectus-InTrac 776.
Ciba-Geigy Corporation
Falber Harry
Kaplan G. L.
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