System of alarm to make aware about bad condition of car

Details System of alarm to make aware about bad condition of car System of alarm to make aware about bad condition of car

1985-06-17

1989-08-08

Crosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340450, 340525, 3404573, 340459, B60Q 100

Patent

active

048557099

ABSTRACT:
An electrical alarm system is provided for automobiles for warning about defective conditions or malfunctions. The system includes electrical circuits, including switches responsive to certain conditions in the automobile, such as when the parking brake is down, the seat belt is off, the tire pressure is low, the water level in the radiator is low, etc., when the vehicle is moving and electricity flows through the circuit. A diode in each circuit isolates that circuit from the other circuit and an alarm in each circuit is activated by the switch to give audible signal of the undesired condition.

REFERENCES:
patent: 3815110 (1974-06-01), Davidson
patent: 3903513 (1975-09-01), Green et al.
patent: 4361826 (1982-11-01), Catala
patent: 4495484 (1985-01-01), Kawakatsu et al.

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