Animal husbandry – Waste toilet or related device – Walled receptacle; e.g. – litter box – etc. – containing...
Patent
1977-12-12
1979-03-20
Chamblee, Hugh R.
Animal husbandry
Waste toilet or related device
Walled receptacle; e.g., litter box, etc., containing...
A01K 2500
Patent
active
041448448
ABSTRACT:
A grazing regulator is mountable to the head of a grazing animal to automatically prevent the animal from eating short grass, while allowing the animal to graze on taller grass. The regulator includes a rigid frame that is mounted on the animal's head where it pivotably mounts a pair of rocker arms. A grazing plate is fixed to the lower ends of the rocker arms and is pivotable in unison with the arms between an operative position where the plate substantially overlaps the animal's mouth to prevent eating, and an inoperative position wherein the plate is pivoted clear of the animal's mouth. Movement of the plate between these positions is effected by an actuator rod slidably mounted to the framework. A lower end of the actuator rod protrudes below the grazing plate to engage the ground and slide upwardly as the animal moves its head toward the ground surface. The upper end of the rod is connected to an upper end of the rocker arm. It causes pivotal movement of the rocker arm and grazing plate. Therefore, the plate will automatically pivot to the operative position when the animal's head reaches a selected elevational position.
REFERENCES:
patent: 664800 (1900-12-01), White
patent: 806004 (1905-11-01), Rowland
patent: 1210244 (1916-12-01), Williams
patent: 1927242 (1933-09-01), Miner
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