发明名称 |
Recovery of sediments from the bottom of the sea |
摘要 |
In a method and apparatus for the recovery of sediments from the sea bottom, a suction head having a mouth is lowered into the sediment, raised from the sediment to form a depression, laterally moved to a new location adjacent the first depression, and the cycle is repeated to form a new depression. The suction head includes loosening means in the form of a worm or flukes which exert a low frictional resistance with respect to the sediment during lowering of the suction head and high frictional resistance when the head is being raised from the sediment.
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申请公布号 |
US4386473(A) |
申请公布日期 |
1983.06.07 |
申请号 |
US19800197793 |
申请日期 |
1980.10.17 |
申请人 |
PREUSSAG AKTIENGESELLSCHAFT |
发明人 |
AMANN, HANS;BURKHARDT, JUERGEN;LUECK, KLAUS;POEPPEL, FRITZ O. |
分类号 |
E02F3/88;E02F3/90;E02F3/92;E21C45/00;E21C45/06;E21C50/00;(IPC1-7):E02F3/88 |
主分类号 |
E02F3/88 |
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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