Green refresher

Details Green refresher Green refresher

1988-10-12

1990-05-01

Reese, Randolph A.

Earth working

Lawn aerator or perforator, or plug remover

172 42, 172 95, A01B 3910, A01B 4502

Patent

active

049210513

ABSTRACT:
A soil tiller or cultivator adapted to till the surface soil covered with a lawn by plural cutters to cure the compaction of the soil below the lawn surface. The till is provided with a motion transmission unit for transmitting the motive power of a driving prime mover to the cutters in the form of at least two vibrations dephased with respect to one another.

REFERENCES:
patent: 1168813 (1916-01-01), Klopfenstein
patent: 3935905 (1976-02-01), Chery
patent: 3952810 (1976-04-01), Ulrich
patent: 4096915 (1978-06-01), Groth
patent: 4187914 (1980-02-01), van der Lely
patent: 4351396 (1982-09-01), Moulton
patent: 4375836 (1983-03-01), Weichel
patent: 4658909 (1987-04-01), McDermott et al.

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