Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1992-08-26
1994-02-15
Raevis, Robert
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
B60Q 100
Patent
active
052870855
ABSTRACT:
An automatic test and connect electrical power system for use on a brake light circuit of a multiple circuit cord and plug configuration disposed between a tractor and trailer or trailers to sense the presence of a trailer or trailers equipped with either a conventional brake system or an anti-lock brake system and to automatically connect and provide continuous or intermittent power to the electronic control unit and light the brake lights of a trailer equipped with either brake system when the brakes of the tractor are applied lighting the brake lights of the tractor.
REFERENCES:
patent: 3934940 (1976-01-01), Schnalbel
patent: 4842532 (1989-06-01), Krause
patent: 5039173 (1991-08-01), Emig et al.
patent: 5085489 (1992-02-01), Emig et al.
At-A-Glance, Inc.
Naragon Frederic E.
Raevis Robert
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