Trailer hitch signaling device

Details Trailer hitch signaling device Trailer hitch signaling device

1983-10-19

1986-06-03

Rowland, James L.

Communications: electrical

Selective

Having indication or alarm

340687, 280507, G08B 2100

Patent

active

045932646

ABSTRACT:
A dual trailer hitch warning system for use with a ball and socket trailer hitch including an electrically operated alarm system for signaling a loose coupling of the socket member on the ball member. A switch is mounted within the ball member which energizes an alarm relay circuit when the ball switch operates due to a loose coupling to complete an alarm circuit between the automobile battery and the horn. The warning system also includes a tampering relay circuit adapted to provide an alarm signal if an attempt is made to disengage or short out the alarm circuit or if the socket and ball member are deliberately uncoupled.

REFERENCES:
patent: 3696371 (1972-10-01), Wise
patent: 3710370 (1973-01-01), Quilici et al.
patent: 3737605 (1973-06-01), Tobey et al.
patent: 3753117 (1973-08-01), Downing et al.
patent: 3851326 (1974-11-01), Costa
patent: 3876851 (1975-04-01), McMains et al.
patent: 4028691 (1977-06-01), Zeder
patent: 4127855 (1978-11-01), Toner
patent: 4211990 (1980-07-01), Gwozdz
patent: 4315162 (1982-02-01), Ferguson

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