Double switch safety system and signaling device for a trailer h

Details Double switch safety system and signaling device for a trailer h Double switch safety system and signaling device for a trailer h

1991-04-01

1992-10-27

Crosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

For trailer

340686, 340687, 307 91, G08B 2100

Patent

active

051593122

ABSTRACT:
A trailer hitch alarm system having a double safety switch for a ball and socket coupling in combination with an alarm system to provide an alarm signal indication that the socket has become loose from the ball or that the ball has become loose from the towing vehicle frame.

REFERENCES:
patent: 4593264 (1986-06-01), Engle
patent: 4988116 (1991-01-01), Evertsen

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