Sensing device

Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture

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G01N 2518

Patent

active

043844774

ABSTRACT:
A sensing device for detecting a substance including hydrocarbons on the surface of water provides a floatation device for floating on the water surface and for supporting at least one sensing element for detecting said substance, the floatation device being composed substantially of nitrile. A sensing device for use in an apparatus for detecting a substance on the surface of a liquid, the sensing device providing a mounting surface adapted for facing downwardly toward the liquid surface, a plurality of sensing elements each of which is mounted at a different predetermined distance below the mounting surface, and a flotation portion affixed to the mounting surface for supporting the mounting surface at the liquid surface whereby the sensing elements may be maintained at different known depths below the liquid surface.

REFERENCES:
patent: 2660194 (1953-11-01), Hoffman
patent: 3720797 (1973-03-01), Gunn et al.
patent: 3918034 (1975-11-01), Orth, Jr.
patent: 3946625 (1976-03-01), Miyazaki et al.
patent: 4116045 (1978-09-01), Potter
patent: 4131773 (1978-12-01), Maham et al.
patent: 4221125 (1980-09-01), Oliver et al.
patent: 4223552 (1980-09-01), Goldstein

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