Alarm device for marine tank
First Claim
1. An alarm device adapted for use in a household marine tank with accessory equipment so as to indicate to an operator an electric leakage or a poor insulation condition, comprising a sensor means in serial connection to an alarm circuit controlled by a capacitor exchange type power circuit which has a receptacle for receiving plugs from the accessory equipment such as an illumination light, air pump, water temperature controller, and filter means, and said power circuit being connected to a power source;
- wherein the range of detection of electric leakage is from 0.1 to 1 mA, and an indication of a poor insulation condition is given at a measurement of substantially 3.3 mΩ
;
whenever either electric leakage occurs inc said range, or a poor insulation condition is detected, a buzzer means and an indicator light will be actuated to keep the operator alert;
by disconnecting one by one the plugs of said accessory equipment to see if the light and buzzer means cease actuation, the operator can locate a trouble spot with certainty.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
1 Claim
-
1. An alarm device adapted for use in a household marine tank with accessory equipment so as to indicate to an operator an electric leakage or a poor insulation condition, comprising a sensor means in serial connection to an alarm circuit controlled by a capacitor exchange type power circuit which has a receptacle for receiving plugs from the accessory equipment such as an illumination light, air pump, water temperature controller, and filter means, and said power circuit being connected to a power source;
- wherein the range of detection of electric leakage is from 0.1 to 1 mA, and an indication of a poor insulation condition is given at a measurement of substantially 3.3 mΩ
;
whenever either electric leakage occurs inc said range, or a poor insulation condition is detected, a buzzer means and an indicator light will be actuated to keep the operator alert;
by disconnecting one by one the plugs of said accessory equipment to see if the light and buzzer means cease actuation, the operator can locate a trouble spot with certainty.
- wherein the range of detection of electric leakage is from 0.1 to 1 mA, and an indication of a poor insulation condition is given at a measurement of substantially 3.3 mΩ
Specification
-
- Resources
-
Current AssigneeYu Ding Enterprise Co., Ltd.
-
Original AssigneeYu Ding Enterprise Co., Ltd.
-
InventorsWeng, Kuo-Lianq, Weng, Kuo-Liang
-
Primary Examiner(s)Orsino, Joseph A.
-
Assistant Examiner(s)Hofsass, Jeffery A.
-
Application NumberUS07/521,785Time in Patent Office327 DaysField of Search340/649, 340/650, 340/651, 340/660, 340/664, 324/133, 361/42, 361/45US Class Current340/650CPC Class CodesG01R 31/52 Testing for short-circuits,...
