发明名称 Stone rake and ground conditioning machine
摘要 A tractor hitch mounted combination stone rake and ground conditioning machine including a frame and rotary member having mounted thereon a plurality of resilient tines in combination with a means for raising and lowering the rotary member with respect to the ground to allow a penetration of said resilient tines into the ground from about 1/8 of an inch to 3 inches to provide a resilient stone raking and ground preparing action which removes small stones, sticks and other materials that would otherwise interfere with a finished landscape for planting of lawn seed or other crop. The novel combination stone rake and ground conditioning machine not only removes stones at or near the surface of the ground, but also breaks up and aerates the soil while removing weeds and other plant growth that might otherwise interfere with planting operations.
申请公布号 US4270614(A) 申请公布日期 1981.06.02
申请号 US19770861367 申请日期 1977.12.16
申请人 JUDY, JAMES W. 发明人 JUDY, JAMES W.
分类号 A01B43/00;(IPC1-7):A01B43/00 主分类号 A01B43/00
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