Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1974-08-23
1976-07-20
Envall, Jr., R. N.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
340 67, B60Q 100
Patent
active
039708608
ABSTRACT:
The adapter circuit is interposed between the towing vehicle light circuit including at least a right turn light circuit, a brake light circuit, a left turn light circuit, and a light system common and the trailer light circuit including at least a left signal lamp and a right signal lamp. A right turn relay, operating a single normally closed contact, is connected to and responds to energization of the right turn light circuit. A brake relay, operating two normally closed contacts, is connected to and responds to energization of the brake light circuit. A left turn relay, operating a single normally closed contact, is connected to and responds to energization of the left turn light circuit. The right signal lamp is connected on one side to the light system common and on the other side through the first of the brake relay operated contacts to the right turn light circuit. The latter side is also connected through the right turn relay operated contact to the brake light circuit. The left signal lamp is connected on one side to the light system common and on the other side through the second of the brake relay operated contacts to the left turn light circuit. The latter side is also connected through the left turn relay operated contact to the brake light circuit. The adapter circuit results in operation of the trailer lamps to give the same type of signals on the trailer as appear on the towing vehicle. The adapter may be interposed between the trailer lights and the towing vehicle light circuits by the use of two of multiple contact adapters at each interface with the adapter.
REFERENCES:
patent: 2671891 (1954-03-01), Kent
patent: 3849664 (1974-11-01), Bryant
Envall, Jr. R. N.
Mattern Jr. Roy E.
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