Selective bird feeder
US4977859A · kind A · utility
54Cited by
4References
11Claims
0Family size
Inventor
Key dates
| Filing date | Nov 20, 1989 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Nov 20, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K39/012
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A feed device for birds in which a feed distribution assembly is mounted at the bottom of a feed container. The distribution assembly includes a downwardly outwardly slanted lower wall which forces seed to the inner outside peripheral surfaces of the assembly against an intermediate wall which includes openings therethrough. Such openings are normally partially aligned with similar openings formed in an encircling band about the intermediate wall which band is adjustably rotatable thereon such that the desire rate of feed distribution is dependent on the species to be attracted and the seed size utilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.