发明名称 Windrow aerator
摘要 A frame mounted on wheels having a pickup head, with tines, lifting the windrow and moving it back. A lower roller with ribs is mounted rearwardly of the pickup head, and extending above it. An upper roller with ribs is mounted above, and partially forwardly of the lower roller, leaving a gap between the rollers through which the hay of the windrow passes. The pickup head and rollers are driven by p.t.o. drive from the drawing vehicle.
申请公布号 US4524575(A) 申请公布日期 1985.06.25
申请号 US19840588496 申请日期 1984.03.12
申请人 NILSEN, ARNOLD W. 发明人 NILSEN, ARNOLD W.
分类号 A01D84/00 主分类号 A01D84/00
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