发明名称 Placer mining apparatus with puddling nozzle
摘要 A placer mining apparatus for intaking a slurry of water and ore bearing soils and directing the slurry to an ore separating mechanism is provided with a suction nozzle for intaking slurry and an integral puddling nozzle for selectively supplying water to produce the slurry in a dry area. A digging structure is provided at the intake end of the suction nozzle for loosening and/or burrowing into the soil.
申请公布号 US4760656(A) 申请公布日期 1988.08.02
申请号 US19870084436 申请日期 1987.08.11
申请人 EAST, VERNOY A. 发明人 EAST, VERNOY A.
分类号 E02F3/88;E02F3/92;E02F5/28;(IPC1-7):E02F3/88 主分类号 E02F3/88
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