Communications: electrical – Selective – Having indication or alarm
Patent
1975-05-19
1977-02-01
Waring, Alvin H.
Communications: electrical
Selective
Having indication or alarm
340412, B60Q 100
Patent
active
040064484
ABSTRACT:
A centralized monitor system for motor vehicles of the "failure-proof" type including display lamps for indication of trouble sources and a primary warning lamp which are activated by respective switching circuits connected to respective sensors. Its feature is that even if any switching circuit fails or is damaged to make the display lamp inactive, the primary warning lamp nevertheless is activated to give a warning of such latent failure of possible occurrence in the switching circuit.
REFERENCES:
patent: 3626367 (1971-12-01), Howard
patent: 3683197 (1972-08-01), Ives
Arai Hiroshi
Ohta Jun
Toyota Jidosha Kogyo Kabushiki Kaisha
Waring Alvin H.
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