Stone rake and ground conditioning machine

Details Stone rake and ground conditioning machine Stone rake and ground conditioning machine

1977-12-16

1981-06-02

Hafer, Robert A.

Unearthing plants or buried objects

Stone gathering and/or unearthing by impelling above-ground...

56400, A01B 4300

Patent

active

042706149

ABSTRACT:
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.

REFERENCES:
patent: 2485057 (1949-10-01), McCormick
patent: 2652673 (1953-09-01), Zehren
patent: 2691933 (1954-10-01), Emerson
patent: 2781623 (1957-02-01), Anderson
patent: 2938586 (1960-05-01), Gaffney
patent: 2987867 (1961-06-01), Nicholson
patent: 3045414 (1962-07-01), Scheidenhelm
patent: 3148494 (1964-09-01), Scheidenhelm
patent: 3171243 (1965-03-01), Johnston
patent: 3362480 (1968-01-01), Barber
patent: 3599724 (1971-08-01), Fraske
patent: 3703060 (1972-11-01), Gradwohl et al.
patent: 4113023 (1978-09-01), Baskett

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