发明名称 |
Mine stopping and braces therefor |
摘要 |
A mine stopping installed in a mine passageway includes a plurality of elongate panels extending generally vertically in side-by-side relation from a floor to a roof of the passageway to at least partially close the passageway. A generally horizontal elongate brace extends generally between the walls of the passageway adjacent to the panels. A generally vertical column extends from the floor to the roof and is adapted for reinforcing the brace. Braces and anchor beams for stoppings are also disclosed.
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申请公布号 |
US2003147706(A1) |
申请公布日期 |
2003.08.07 |
申请号 |
US20030353854 |
申请日期 |
2003.01.29 |
申请人 |
JACK KENNEDY METAL PRODUCTS & BUILDINGS, INC. |
发明人 |
KENNEDY WILLIAM R.;KENNEDY JOHN M. |
分类号 |
E21F1/10;(IPC1-7):E02D3/02;E21F1/14 |
主分类号 |
E21F1/10 |
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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