Automatic pollution containment and alert apparatus for liquid d

Details Automatic pollution containment and alert apparatus for liquid d Automatic pollution containment and alert apparatus for liquid d

1991-10-15

1992-11-03

Theisen, Mary Lynn

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

136291, 210 961, 210154, 210170, 405 37, 405 80, 405107, 73 6143, 73 6146, E02B 100

Patent

active

051600366

ABSTRACT:
An apparatus for containing liquids and pollution within a liquid drainage comprising a first conduit, a second conduit, a liquid barrier, a means for lifting, and a means for sensing pollution. The second conduit is smaller in relative diameter than the first conduit and is positioned so that the second conduit outlet end is located within the first conduit. The second conduit has a flexible portion of its length which permits the outlet end of the second conduit to be lifted while the inlet end of the second conduit remains stationary. The liquid barrier guides fluid flow into the second conduit inlet during normal flow, guides fluid flow into the second conduit and liquid flow over the top of the liquid barrier and into the first conduit during floods and retains liquid during normal flow when the outlet end of the second conduit is lifted. The apparatus further comprises a means for lifting which is electrically connected to a sensing means. The sensing means detects pollution, and activates the lifting means to lift the outlet end of the second conduit means causing the liquid barrier to retain liquid. The lifting means is adjustable so that the height that the outlet of the second conduit is lifted is predetermined allowing either a temporary or substantially permanent interruption of drainage liquid flow. Finally, the apparatus is comprised of an audio and/or a visual alarm, sounded when the sensing means senses pollution, which alerts personnel that pollution is detected in the drainage.

REFERENCES:
patent: 3850807 (1974-11-01), Jones
patent: 4319998 (1982-03-01), Anderson
patent: 5067850 (1991-11-01), Gray

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