发明名称 |
Locking cover for wells and underground tanks |
摘要 |
A locking cover apparatus for an opening in the ground is disclosed. The apparatus can be retro-fitted to an existing ground opening, or can be newly constructed ground opening fitted with the apparatus of the present invention. The apparatus features a keyed lock that has a projecting portion that fits under an existing or newly constructed shroud that is installed at ground level and around the ground opening.
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申请公布号 |
US7144189(B1) |
申请公布日期 |
2006.12.05 |
申请号 |
US20030657543 |
申请日期 |
2003.09.08 |
申请人 |
BONGIOVANNI BRAD;FUNDERBURK SHAWN |
发明人 |
BONGIOVANNI BRAD;FUNDERBURK SHAWN |
分类号 |
E02D29/14 |
主分类号 |
E02D29/14 |
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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