发明名称 |
Access cover fastening device |
摘要 |
A hollow aluminum pole has access to its interior through a hand hole frame having an access aperture which can be blocked by a cover having a lower end pivotally attached to the hand hole frame by a pivot pin. The pivot pin is biased inwardly by a coil spring which permits outward movement of the cover to a position in which it can be rotated downwardly out of alignment with the access opening.
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申请公布号 |
US7007986(B2) |
申请公布日期 |
2006.03.07 |
申请号 |
US20030448437 |
申请日期 |
2003.05.30 |
申请人 |
KEARNEY-NATIONAL INC. |
发明人 |
LODWICK, JR. WILLIAM HADLEY |
分类号 |
E05C5/04;E04H12/00 |
主分类号 |
E05C5/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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