Alarm device for marine tank

Details Alarm device for marine tank Alarm device for marine tank

1990-05-10

1991-04-02

Orsino, Joseph A.

Communications: electrical

Condition responsive indicating system

Specific condition

340651, 324133, 361 45, G08B 2100

Patent

active

050050079

ABSTRACT:
An alarm device adapted particularly for the indication of electrical leakage and mal-insulation of electrical appliances disposed in association with a marine tank for use in fish raising. An electrical leakage sensor unit is provided in the tank, to which are electrically plugged the illumination light, air pump, temperature controller, water filter member, germicidal light, so that an alarm signal led via an IC comparator and further to a sonic frequency vibrator for transformation and further to an signal amplifier and subsequently to a parallelly-connected buzzer and red-light indicator to simultaneously alarm the operator of the hazard of electrical leakage and mal-insulation.

REFERENCES:
patent: 3784903 (1974-01-01), Thomas
patent: 3869668 (1975-03-01), Thompson

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