发明名称 |
Floating grab installation for the recovery of sand and gravel |
摘要 |
A floating grab installation for recovery of sand and gravel is disclosed. The installation includes a catamaran-type float or pontoon having a gripper and gripper support thereon. The gripper transfers the sand and gravel to an underwater tank having an endless bucket dredge which plunges to its lowest point.
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申请公布号 |
US5259130(A) |
申请公布日期 |
1993.11.09 |
申请号 |
US19920900316 |
申请日期 |
1992.06.18 |
申请人 |
ROHR GMBH |
发明人 |
ROHR, WOLFGANG |
分类号 |
E21C50/00;E02F3/413;(IPC1-7):E02F3/413;E02F7/02;E02F7/06 |
主分类号 |
E21C50/00 |
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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