Lawn aerator

Details Lawn aerator Lawn aerator

1979-05-23

1981-08-11

Purser, Ernest R.

Boring or penetrating the earth

Bit or bit element

With helical-conveying portion

172 22, 408230, E21B 1044

Patent

active

042829437

ABSTRACT:
Disclosed herein is an aerator for use in providing cylindrical holes in a lawn or similar type surface so as to provide a nesting area for fertilizer and to allow the introduction of air beneath and along the root system of botanical life to be thus treated. The device comprises an elongate shaft from which emanates along the lower portion thereof a helical type of screw provided with shelf portions and a pointed extremity at the terminus of the shaft which is so constructed that the device not only cuts into the earth, but also carries the thus loosened dirt on the shelf portions so that when the device is removed from the hole a substantially cylindrical void is provided.

REFERENCES:
patent: 321144 (1885-06-01), Soderstrom
patent: 1343902 (1920-06-01), Chapman
patent: 1567829 (1925-12-01), Bettis
patent: 1791186 (1931-02-01), Black
patent: 2305895 (1942-12-01), Pearson
patent: 2908483 (1959-10-01), Stephenson
patent: 3015364 (1962-01-01), Fitzgerald

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