Optimum engine idling time indicator

Details Optimum engine idling time indicator Optimum engine idling time indicator

1990-08-24

1991-08-20

Orsino, Joseph A.

Communications: electrical

Land vehicle alarms or indicators

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

340449, B60Q 100

Patent

active

050418114

ABSTRACT:
A device for indicating the optimum idling time of an engine after ignition. A detector circuit senses the voltage drop caused by the load of the starter on the power line and starts the timer. The optimum idling time is determined from the ambient temperature. A LED is illuminated after ignition and is extinguished after the optimum idling time. The device is designed to fit in the receptacle of a standard cigarette lighter and requires no connections beyond those available there.

REFERENCES:
patent: 1862994 (1932-06-01), Zubaty et al.
patent: 3409873 (1968-11-01), Duffy
patent: 4075998 (1978-02-01), Krauss et al.
patent: 4163186 (1979-07-01), Haley
patent: 4213125 (1980-07-01), Watanabe
patent: 4890088 (1989-12-01), Woodell

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