Turf perforating device

Details Turf perforating device Turf perforating device

1975-07-10

1976-10-19

Shapiro, Paul E.

Earth working

Lawn aerator or perforator, or plug remover

Earth removing

111 6, 111 89, A01B 4502

Patent

active

039865622

ABSTRACT:
A turf perforating device for aerating lawns by removing plugs therefrom comprising a wheeled frame having a plurality of reciprocating tools connected by a linkage to a crankshaft and each linkage slidably mounted in a pivotable sleeve which prevents binding of the linkage as the frame is moved across the lawn and the tool is disposed in the ground.

REFERENCES:
patent: 1477097 (1923-12-01), Anderson et al.
patent: 1753136 (1930-04-01), Scrimger
patent: 2056337 (1936-10-01), Archibald
patent: 2206264 (1940-07-01), Rose
patent: 2255040 (1941-09-01), Helbig
patent: 2302944 (1942-11-01), Helbig
patent: 2800066 (1957-07-01), Cohrs et al.
patent: 3802513 (1974-04-01), Ploenges

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