发明名称 Bird food dispensing system with squirrel proof housing
摘要 A housing (1) for a food dispenser (8) for birds has a band (10) of contiguous apertures (11) which are elongated transversely of the band. Each aperture (11) has a width of 2 to 4 cm over at least a 5 cm length thereof. The apertures (11) enable small birds to enter the enclosed space (14) inside the housing (1) in order to eat from the food dispenser (8). The apertures (11) are however too small to permit squirrels to gain entry. Because the apertures (11) are in a band (10), the birds are less likely to feel trapped inside the housing (1).
申请公布号 US5111772(A) 申请公布日期 1992.05.12
申请号 US19910651066 申请日期 1991.02.06
申请人 LIPTON, LESLIE 发明人 LIPTON, LESLIE
分类号 A01K39/01 主分类号 A01K39/01
代理机构 代理人
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