发明名称 |
Electrical mud box with removable cover |
摘要 |
An electrical enclosure for use in poured concrete construction has a front opening that is closed by a removable cover that prevents poured concrete from entering the enclosure cavity. The cover is a knockout cover that is molded integrally with the enclosure and is attached to the enclosure peripheral wall by a frangible web.
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申请公布号 |
US6998531(B2) |
申请公布日期 |
2006.02.14 |
申请号 |
US20040808853 |
申请日期 |
2004.03.25 |
申请人 |
THE LAMSON & SESSIONS CO. |
发明人 |
HULL ERIC G. |
分类号 |
H02G3/08;H02G3/04;H02G3/12;H02G3/14 |
主分类号 |
H02G3/08 |
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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