Birdfeeding device

Details Birdfeeding device Birdfeeding device

1991-07-29

1992-12-15

Weiss, John G.

Animal husbandry

Feeding device

Hopper and trough

A01K 110, A01K 500

Patent

active

051707500

ABSTRACT:
A birdfeeder according to the invention is designed for repelling predatory animals. The feeder includes a spring-actuated roof which acts as a catapult when an animal alights thereon. The roof is secured by a latch which disengages when spring loaded pistons urge the roof upward and it can be closed and resecured either manually or automatically by motor.

REFERENCES:
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patent: 1535165 (1925-04-01), Koerperich et al.
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patent: 3164130 (1965-01-01), Curtis et al.
patent: 3631840 (1972-01-01), McCormack
patent: 3646912 (1972-03-01), Gardner
patent: 3785348 (1974-01-01), Polidori, Sr. et al.
patent: 4104988 (1978-08-01), Trutor
patent: 4185588 (1980-01-01), Harris
patent: 4974547 (1990-12-01), Graham

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