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Bird feeder with adjustable shroud
专利权人:
Paul L. Cote
发明人:
Paul L. Cote
申请号:
US16501033
公开号:
US20200253166A1
申请日:
2019.02.11
申请国别(地区):
US
年份:
2020
代理人:
摘要:
A bird feeder which comprises a seed container having at least one seed port to permit birds to have access to seed, a shroud extending about the seed port, the shroud being movable between a first position wherein access to the seed port is enabled and a second position wherein access to the seed port is denied, a base member being secured to the seed container, a hollow tube extending upwardly from the base member and being located internally of the seed container, a rod extending within the hollow tube and a spring extending about a portion of the rod, the rod having a flange extending outwardly to bias a first end of the spring, an insert secured to the base member, the insert extending upwardly into the hollow tube with a second end of the spring being biased against the insert, the rod having a lower end secured against a bottom portion of the shroud such that when a weight is placed on the shroud, the shroud moves downwardly to the second position.
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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