Automatic drain system treatment apparatus

Details Automatic drain system treatment apparatus Automatic drain system treatment apparatus

1988-09-30

1990-03-27

Fisher, Richard V.

Liquid purification or separation

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

Material level or thickness responsive

210 89, 210139, 210141, 2101981, 435262, 137240, 134 57R, 134 95, 134169R, C02F 300

Patent

active

049118323

ABSTRACT:
An apparatus for automatically treating a drain system to prevent or at least minimize clogging problems particularly in grease traps of the type provided in restaurants and other food preparation establishments. The apparatus includes a valve for directing fresh water into the grease trap for pretreating the trap in preparation for the injection of bioactive liquid cultures by the pump. The liquid cultures liquify and digest contaminants in the grease trap which are flushed therefrom by fresh water. The apparatus is controlled by a system which cyclically operates the apparatus in accordance with a preferred operational sequence and at adjustably variable time periods.

REFERENCES:
patent: 1665029 (1928-04-01), Hartnett
patent: 2245767 (1941-06-01), Eickmeyer et al.
patent: 3242055 (1966-03-01), de Lucia
patent: 3283781 (1966-11-01), Boyer
patent: 3506582 (1970-04-01), Gertzman
patent: 3672391 (1972-06-01), Livingston et al.
patent: 4666606 (1987-05-01), Heinicke
patent: 4670149 (1987-06-01), Francis
patent: 4797208 (1989-01-01), Miller et al.
patent: 4810385 (1989-03-01), Hater et al.

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