Electronic cattle guard

Details Electronic cattle guard Electronic cattle guard

1983-01-05

1985-03-05

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

116 22A, 119 29, 340556, A01K 300, G08B 2100, G08B 1318

Patent

active

045033994

ABSTRACT:
Livestock entering a border zone along a vehicle roadway are deterred by sequentially activated horn, smoke generating and odor emitting devices triggered in response to interruption of one photo-electric beam at that end of the zone from which the cattle enter. Travel of a vehicle through the zone sequentially interrupts the two beams at opposite ends of the zone to reset the deterring apparatus and cancel its operation.

REFERENCES:
patent: 3753421 (1973-08-01), Peck

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