Filter trap for waste water

Details Filter trap for waste water Filter trap for waste water

2011-02-08

2011-02-08

Cecil, Terry K (Department: 1797)

Liquid purification or separation

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

Material level or thickness responsive

C210S091000, C210S455000, C210S497010, C210S234000

Reexamination Certificate

active

07883620

ABSTRACT:
A filter trap into which waste water can be dumped to separate particulate matter from the water. A sensor senses when the liquid level in the filter trap rises above a predetermined level, and triggers an alarm to indicate the filter basket is full of particulate matter and must be removed to dispose of the contents. The withdrawal of the filter basket from the filter trap causes the inlet thereto to automatically close so that waste water cannot be dumped into the filter trap when the filter basket has been removed. A sensor senses when the filter basket has been removed to provide a visual indication thereof.

REFERENCES:
patent: 1746274 (1930-02-01), Otis, Jr.
patent: 6231762 (2001-05-01), Marshall, III
patent: 7153417 (2006-12-01), Happel

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