发明名称 |
DEVICE FOR CLOSING AN OPENING, PARTICULARLY A MAN HOLE |
摘要 |
The manhole closing device comprises a frame (4) and a cover (6) articulated to the frame around a first axis (X-X) by means of a hinge (14). There is a locking means (16) which holds the cover open in a first position and an unlocked second position where the cover can be pivoted around the axis. The hinge is designed so that the cover while resting on the frame can pivot around a second horizontal axis (Y-Y). |
申请公布号 |
AU2003255584(A1) |
申请公布日期 |
2003.12.12 |
申请号 |
AU20030255584 |
申请日期 |
2003.05.20 |
申请人 |
SAINT-GOBAIN PAM |
发明人 |
JEAN-PAUL PIETRZAK;JEAN-CLAUDE HAUER |
分类号 |
E02D29/12;E02D29/14;E05D1/06;E05D3/02;E05D11/10;G11B33/04 |
主分类号 |
E02D29/12 |
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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