Well cleaning system

Cleaning and liquid contact with solids – Apparatus – Electrically controlled

Reexamination Certificate

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Details

C134S16800C, C134S174000, C134S178000, C134S180000, C166S223000

Reexamination Certificate

active

07082952

ABSTRACT:
A well-cleaning system (10) is provided with a control system (30) where waste liquid level sensors (35, 36) co-operate with timers (39, 40) to control the frequency and duration of the well-cleaning cycles. Chemicals can be injected into the water on demand from a well-conditioning sensor (38); and the well-cleaning system (10) can be operated when high H2S gas levels are detected in the well (20) by a H2S gas sensor (37).

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Derwent Abstract Accession No. 97-487122/45, JP 09-228427 A (Matsuishita Seiko KK) Sep. 2, 1997.
Derwent Abstract Accession No. 1999-564287/48, JP 11-243780 A (With Jpaan KK) Sep. 14, 1999.

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