Communications: electrical – Land vehicle alarms or indicators – External signal light system
Patent
1995-10-25
1997-09-09
Hofsass, Jeffery
Communications: electrical
Land vehicle alarms or indicators
External signal light system
340475, 340431, 340463, 307 108, 362 61, B60Q 126, B60Q 134
Patent
active
056661037
ABSTRACT:
In response to detecting activation of a safety indicator on the towing vehicle, a radio frequency control signal is transmitted from a transmitter means on the towing vehicle. Thereafter, the radio frequency control signal is received on a towed vehicle using receiver means powered by a power source located on the towed vehicle. In response to receiving the radio frequency control signal, a safety indicator on the towed vehicle is automatically connected to the power source on the towed vehicle to activate the safety indicator on the towed vehicle. The radio frequency control signal may be encoded in response to the detection of a particular one of a plurality of safety indicators on the towing vehicle. Upon receiving the encoded radio frequency control signal, a corresponding one of a plurality of safety indicators on the towed vehicle may then be automatically connected to the power source on the towed vehicle. Therefore, the power source and the safety indicator on the towed vehicle are automatically controlled from the towing vehicle without a wire connection between the towing vehicle and the towed vehicle.
REFERENCES:
patent: 4801917 (1989-01-01), Winterfeld
patent: 4859982 (1989-08-01), Seaburg
patent: 5195813 (1993-03-01), Brown
patent: 5198798 (1993-03-01), Lietzow et al.
patent: 5424715 (1995-06-01), Lietzow et al.
Bradley James E.
Hofsass Jeffery
Wu Daniel J.
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