Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent
1990-12-26
1992-09-15
Williams, Hezron E.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
73 4050R, 73 492, G01M 332
Patent
active
051467780
ABSTRACT:
Apparatus for the detection of oil or water leakages having a housing with a plurality of openings. The housing is to be a sufficient volume to permit the expansion of an absorbent material when such is placed within it. Additionally, the housing is to have a hollow rod extending from it. Running through the rod is a wire. One end of the wire extends into the housing and holds a weighted member. The other end of the wire is connected to a signalling device for signalling persons of the presence of the liquid sought to be detected. When an expandable absorbent material is placed in the housing and the material detects the presence of a particular liquid, the absorbent material expands. This expansion forces the weighted member to push the wire through the hollow rod so that the signalling device is activated. In a preferred embodiment, underground leakages in oil and/or water tanks may also be detected and signalled to persons in the area. In a further preferred embodiment of the invention, apparatus for the detection of surface oil is further disclosed.
REFERENCES:
patent: 2432367 (1947-12-01), Andresen
patent: 3427869 (1969-02-01), Karlbom
patent: 3951812 (1976-04-01), Hsu
patent: 4890485 (1990-01-01), Hsu
patent: 4959639 (1990-09-01), Benson
Roskos Joseph W.
Schindler Edwin D.
Williams Hezron E.
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