Patent ID: 6217752
Filing Date: 2001-04-17
Classification: C02F,E03F,G01F,Y10T

Abstract:
In combination with a treatment tank, having a top in close proximity to ground level for collecting wastewater containing a quantity of solids from a structure, where suspended sludge is separated by gravitational settlement from an overlying liquid,a two stage sludge level alarm system to detect rising levels of said suspended sludge within said treatment tank, said system comprising:a.) a cylindrical housing extending through said top in interior communication with said overlying liquid and suspended sludge;i.) upper and lower openings in a sidewall of said cylindrical housing;ii.) weight sensitive switches disposed within said cylindrical housing below said openings, where said switches are rendered operative by the weight of sludge passing through said openings into contact with said switches; andb.) an electronic alarm within said structure in electrical communication with said switches, where said electric alarm is activated when at least one of said switches is rendered operative.