发明名称 UNDERWATER EXCAVATOR UNDERWATER EXCAVATOR
摘要 Continuous extraction of solid products from the bottom of the sea by means of at least one endless dredging line provided with buckets. The endless line is lowered to the sea bed from a first ship, the buckets are caused to dredge the surface of the sea bed and the line is then raised to a second ship traveling along a generally parallel course to the first ship after the dredging operation is completed. The line is returned to the first ship along a return path which is at least partially submerged.
申请公布号 AU5575573(A) 申请公布日期 1974.11.21
申请号 AU19730055755 申请日期 1973.05.16
申请人 CENTRE NATIONAL POUR L@EXPLOITATION DES OCEANS AND LE NICKEL;CENTRE NATIONAL POUR L@EXPLOITATION DES OCEANS AND LE NICKEL 发明人 DANIEL FLEURY;MARCEL TESSIER;MICHEL JEGOUSSE;MICHEL GAUTHIER
分类号 E21C45/00;E21C50/00;E21C50/02 主分类号 E21C45/00
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