Bird feeder perch
US4328765A · kind A · utility
Inventor
Key dates
| Filing date | Apr 27, 1981 |
| Grant date | May 11, 1982 |
| Priority date | — |
| Expiry date | Apr 27, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K39/0113
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A perch for bird feeders and the like of the type comprising a vertically disposed housing having feed therein and an aperture extending therethrough for permitting access by the birds, said perch comprising a pair of substantially vertical side walls which extend outwardly from the housing adjacent opposite sides of the aperture with a rod extending between the walls on which a bird may light. In use, feed material within the feeder is easily accessible through the aperture to smaller birds located on the perch but not to larger birds since they cannot insert their relatively large heads between the side walls and their overall large size prevents them from curling their heads downwardly and forwardly to insert their beaks into the aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.