发明名称 Bird feeder
摘要 An improved bird feeder utilizing a sectional roof assembly with an elastomeric material joining a fixed roof section to a second movable roof section. The elastomeric material serves as both an environmental seal and as a hinge to allow easy access to the seed storage area. A flow rate block intermediate the base and a movable wall of the feeder allows bird seed to flow from the interior of the feeder at a rate dependent on the position of the flow rate block.
申请公布号 US4425873(A) 申请公布日期 1984.01.17
申请号 US19820409840 申请日期 1982.08.20
申请人 RINNE, JR., RISTO A. 发明人 RINNE, JR., RISTO A.
分类号 A01K39/012;(IPC1-7):A01K39/00 主分类号 A01K39/012
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