Powered ground aerator

Details Powered ground aerator Powered ground aerator

1979-02-12

1980-12-02

Shapiro, Paul E.

Earth working

Lawn aerator or perforator, or plug remover

Earth removing

172116, 172494, A01B 4502

Patent

active

042365821

ABSTRACT:
A powered machine for moving along the ground surface and producing a succession of holes therein to aerate the soil. The present aerator includes a pair of ground-penetrating members that are moved alternately to engage, penetrate, and disengage the ground's surface. They are moved both vertically and horizontally to "walk" the aerator in a forward path. Each ground-penetrating member is moved through an elliptical circuit in a vertical plane parallel with the forward path. The penetrating members are retained in substantially upright orientation throughout the complete circuit. They are tipped slightly as they engage and leave engagement with the ground to form a uniform upwardly open hole as the aerator is propelled forwardly.

REFERENCES:
patent: 2056337 (1936-10-01), Archibald
patent: 2236562 (1941-04-01), Brandes
patent: 2347748 (1944-05-01), Melling
patent: 3022834 (1962-02-01), Ruka et al.
patent: 3802513 (1974-04-01), Ploenges

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