Motor vehicle stopping distance warning apparatus and method

Details Motor vehicle stopping distance warning apparatus and method Motor vehicle stopping distance warning apparatus and method

1974-06-06

1976-04-06

Yusko, Donald J.

Communications: electrical

Digital comparator systems

340 62, B60K 2700, B60Q 100

Patent

active

039493628

ABSTRACT:
A warning system and methods for vehicles traveling in tandem. A signal beam of energy is emitted from a leading vehicle and is directed toward the roadway to indicate a safe stopping distance. The signal beam is automatically displaced in response to changes in vehicle speed to indicate a new safe stopping distance. The signal emitter may comprise a lamp for emitting a visible light beam. A signal detector may be provided on the trailing vehicle to detect the energy beam from the leading vehicle.

REFERENCES:
patent: 2158310 (1939-05-01), Smith et al.
patent: 2804160 (1957-08-01), Rashid
patent: 2831182 (1958-04-01), Kamins
patent: 2896089 (1959-07-01), Wesch
patent: 2974304 (1961-03-01), Nordlund
patent: 3749197 (1973-07-01), Deutsch
patent: 3786507 (1974-01-01), Hurd, Jr.

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