Low oil warning circuit

Details Low oil warning circuit Low oil warning circuit

1986-05-16

1987-08-04

Rowland, James L.

Communications: electrical

Selective

Having indication or alarm

123196S, 123198D, 340612, 340618, B60Q 100

Patent

active

046849173

ABSTRACT:
An ignition powered indicator system for detecting and audibly alerting an operator of a low oil condition associated with an internal combustion engine for apparatus such as a lawn mower, pump, generator, tractor and the like. The indicator system includes a low oil switch mounted on the engine crankcase housing and connected in circuit with a buzzer, diode, and capacitor with the ignition primary. When the oil level is too low, the switch closes shorting the ignition primary to shut off the engine and produce an intermittent beeping sound, namely, one beep per ignition pulse, alerting the operator of the low oil condition.

REFERENCES:
patent: 2722673 (1955-11-01), Turner
patent: 4054117 (1977-10-01), Palmer et al.

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