Communications: electrical – Watercraft alarm or indicating systems
Patent
1997-06-09
1998-07-28
Hofsass, Jeffrey A.
Communications: electrical
Watercraft alarm or indicating systems
340525, 340461, 701 29, G08B 2300
Patent
active
057867747
ABSTRACT:
An alarm module system including at least one electronic display module situated on a boat with a display for indicating the status of the vital functions of the engine of the boat. The electronic display is adapted to produce an activation signal upon detection of an anomaly within the engine. Further included is a direct current battery supply for supplying power and an alarm horn for generating an audible alarm upon the receipt of power. Also provided is an interconnection network including power means having at least one voltage regulator connected to the battery supply for providing a lesser voltage an output thereof. The voltage regulator has a pair of capacitors of unequal capacitance connected in parallel between the output of the associated voltage regulator and a ground. The interconnection network further includes switch means having an input terminal connected to the electronic display module for receiving the activation signal therefrom. A first relay coil is connected to the input terminal with an associated first normally open relay contact connected to the output of the at least one voltage regulator of the power means for closing upon the receipt of the activation signal by the first relay coil. Associated therewith is a second relay coil connected between the first relay contact and ground. Lastly, a second normally open relay contact is connected between the battery supply and the alarm horn for supplying power to the horn upon the closing of the first relay contact.
REFERENCES:
patent: 4914419 (1990-04-01), Bragenzer et al.
patent: 4933852 (1990-06-01), Lemelson
patent: 5063381 (1991-11-01), Ito
patent: 5216421 (1993-06-01), Swada et al.
patent: 5625337 (1997-04-01), Medawar
Hofsass Jeffrey A.
Lee Benjamin C.
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