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Wild bird feed dispenser with squirrel-resistant mechanism
专利权人:
LLC;Classic Brands
发明人:
James Carter,Bryan Krueger,Lynn Hunter
申请号:
US13901321
公开号:
US08978586B1
申请日:
2013.05.23
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A bird feed dispenser for wild birds with squirrel-resistant mechanism that occludes feed ports when a non-bird having a weight sufficient to activate the mechanism engages a portion of the roof or a perch thereon. The dispenser includes at least two feed ports, corresponding perches, and a torsion spring that provide biasing force for the mechanism. The occlusion of feed ports in the dispenser is such that when a non-bird having weight sufficient to activate the mechanism engages a portion of the roof or a perch thereon, all the feed ports are obstructed.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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