发明名称 |
A MINE VENTILATION STRUCTURE AND A DECK PANEL FOR SUCH A STRUCTURE |
摘要 |
A mine ventilation structure is disclosed. The structure comprises a deck including a plurality of elongate sheet metal panels. Each panel is generally of inverted channel shape in transverse cross-section, having a top web and first and second sides extending down from the top web. The panels are connected by tongue-and-groove connections between adjacent sides of adjacent panels. A mine ventilation deck panel of desired construction is also disclosed. |
申请公布号 |
CA2889469(A1) |
申请公布日期 |
2015.11.02 |
申请号 |
CA20152889469 |
申请日期 |
2015.04.28 |
申请人 |
JACK KENNEDY METAL PRODUCTS & BUILDINGS, INC. |
发明人 |
KENNEDY, WILLIAM R.;KENNEDY, JOHN M. |
分类号 |
E21F1/00;E21D11/14;E21F1/16 |
主分类号 |
E21F1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|