Waterflow detector with electronic timer

Details Waterflow detector with electronic timer Waterflow detector with electronic timer

1998-04-13

2000-07-04

Lefkowitz, Edward

Communications: electrical

Condition responsive indicating system

Specific condition

340609, 340618, 340644, 200182, 200186, 200187, 200190, G08B 2100

Patent

active

06084521&

ABSTRACT:
A flow detector includes solid state delay circuitry coupled to a flow indicating device. In response to flow being indicated, the delay circuitry is enabled. After a preset delay interval, if flow is still being indicated, electrical energy can be provided by a short circuit to an output device for the duration of indicated flow. The flow indicating device can be a two-state mechanical switch. A short circuit supplying switch can be implemented as a solid state or mechanical latching relay. The flow detector circuits can be used independently to provide local alarms. Alternately they can provide alarm indicating signals to a common alarm control panel.

REFERENCES:
patent: 3921989 (1975-11-01), Ward
patent: 4958144 (1990-09-01), Griess
patent: 5240022 (1993-08-01), Franklin
patent: 5315294 (1994-05-01), Toth
patent: 5446449 (1995-08-01), Lhomer et al.
patent: 5659300 (1997-08-01), Dresselhuys et al.
patent: 5669405 (1997-09-01), Engelmann
patent: 5680329 (1997-10-01), Lloyd et al.
patent: 5705987 (1998-01-01), Doner
Potter Electric Signal Company, Vane Type Waterflow Switch With Electronic Retard; date unknown; MKT. #8800006-REV C; pp. 1 and 2.
Potter Electric Signal Company, Vane Type Waterflow Switch With Electronic Retard; May, 1995; MKT. #8800006-REV H; pp. 1 and 2.

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