Sewer blockage alarm

Details Sewer blockage alarm Sewer blockage alarm

1989-12-04

1990-11-27

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340626, G08B 2100

Patent

active

049739506

ABSTRACT:
A sewer blockage alarm for a sewer line having a pressure sensor mounted at the top of a clean out branch section of the sewer line which is connected to a large diameter pressure multiplying pressure bell via a length of flexible to be dangled at the entrance of the branch section. An audible and a visual indicator are activated by slight pressure rises caused by water level rising to the tip of sewer line to provide an early warning of an incipient blockage condition.

REFERENCES:
patent: 2761037 (1956-08-01), Thomas et al.
patent: 3774187 (1973-11-01), Windham
patent: 4546346 (1985-10-01), Wave et al.

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