Animal husbandry – Feeding device – Timer-controlled
Patent
1976-06-04
1977-06-28
Chamblee, Hugh R.
Animal husbandry
Feeding device
Timer-controlled
119 63, A01K 2900
Patent
active
040318567
ABSTRACT:
A squirrel-proof post comprises a post supporting a bird platform such as a bird feeder or bird house and has an axially elongated sleeve slidable on the post. Mechanism is provided to bias the sleeve toward the top of the post, such as a counterweight inside the post which is connected to the sleeve by a line which passes over a pulley at the top of the post. The counterweight is sufficient to lift the sleeve to the top of the post. However, when a squirrel climbs up the post and onto the sleeve, the weight is insufficient to support the combined weight of the sleeve and the squirrel, whereupon the sleeve carrying the squirrel will start to slide down the post and the squirrel will jump off and return to ground level. The counterweight will now lift the sleeve back to the top of the post. If the squirrel tries again to climb the post, the process will be repeated and the squirrel will be returned to the ground. This apparatus prevents the squirrel from gaining access to the bird platform.
REFERENCES:
patent: 2891508 (1959-06-01), Bower
patent: 2931336 (1960-04-01), Cather
Chamblee Hugh R.
House, Jr. Joseph P.
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