Communications: electrical – Selective – Having indication or alarm
Patent
1974-12-03
1977-01-11
Waring, Alvin H.
Communications: electrical
Selective
Having indication or alarm
340201R, 307 10R, B60Q 154
Patent
active
040030199
ABSTRACT:
A parameter display and alarm installation for a motor-driven vehicle, comprises a revolution counter device, a speedometer device associated with a general mileage recorder and a trip recorder, said revolution counter and speedometer devices comprising each a signal generator associated with a rotating element of the vehicle, an electronic transfer device having a predetermined duration of its "open" condition and adapted to receive the signals emitted by the related signal generator and to transmit said signals to at least one decoding device which transforms said signals with a view to displaying the same in a digital form, said installation further comprising at least one alarm circuit associated with said revolution counter and speedometer devices and adapted to indicate by an acoustic and/or optical signal any condition wherein the rotational speed of the motor of the vehicle and/or the speed of the vehicle exceed a respective predetermined value; preferably the installation further comprises means for indicating the level of fuel in the reservoir associated with the motor of said vehicle, for indicating the pressure of the lubricant used in said motor and for indicating the temperature of the cooling liquid of said motor, said installation further comprising alarm means adapted to be actuated when the respective predetermined limit values of said lubricant pressure and of said cooling liquid temperature are exceeded.
REFERENCES:
patent: 3626367 (1971-12-01), Howard
patent: 3651454 (1972-03-01), Venema et al.
patent: 3742447 (1973-06-01), Sognefest et al.
patent: 3866166 (1975-02-01), Kerscher et al.
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