Interlock system for emergency vehicles

Details Interlock system for emergency vehicles Interlock system for emergency vehicles

1975-10-16

1977-03-08

Peters, Jr., Joseph F.

Motor vehicles

Bodies

180103R, B60K 2602

Patent

active

040108147

ABSTRACT:
An interlock system for an emergency vehicle includes a manual switch to be actuated by a crew member at a rear end of the vehicle for enabling the vehicle to be started only if the he is at his post. The switch controls a relay for electrically energizing the wiper of a single pole double throw ignition switch which has a pair of contacts respectively feeding a starter switch and a buzzer to enable starting of the vehicle and to signal if the engine is shut off with the manual switch still actuated. A pair of indicator lamps, respectively located for view by the driver and the crew member, are energized in response to actuation of the manual switch to indicate that vehicle starting is enabled.

REFERENCES:
patent: 706295 (1902-08-01), Blood
patent: 774896 (1904-11-01), Robertson

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