Spring operated squirrel proof bird feeder

Details Spring operated squirrel proof bird feeder Spring operated squirrel proof bird feeder

1996-09-04

1998-02-24

Mancene, Gene

Animal husbandry

Feeding device

Powered

A01K 3901

Patent

active

057202389

ABSTRACT:
A squirrel proof bird feeder comprises inner and outer housing with the inner housing fixed vertically and with the outer housing telescopically received thereabout and moveable between upper and lower positions. The housings have openings which are aligned and which provide through openings serving as feed ports in the upper position of the outer housing. In the lower position of he outer housing, the openings are misaligned and close the feed ports. The outer housing is also provided with springs biasing the some toward the upper position but allowing the housing to move downwardly to the lower position under the weight of a squirrel.

REFERENCES:
patent: 4541362 (1985-09-01), Dehls
patent: 4646686 (1987-03-01), Furlani
patent: 5156112 (1992-10-01), Brown
patent: 5163382 (1992-11-01), Morrison
patent: 5195459 (1993-03-01), Ancketill
patent: 5375558 (1994-12-01), Drakos

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