Earth working – Lawn aerator or perforator – or plug remover
Patent
1977-11-07
1980-03-11
Stouffer, Richard T.
Earth working
Lawn aerator or perforator, or plug remover
172 42, 172119, 172122, 172554, A01B 4502, A01B 3302, B62D 5104
Patent
active
041923871
ABSTRACT:
A drum attachment for conventional tillers that expands the possible uses for such tillers. A pair of drums may be detachably mounted to a tiller shaft in place of conventional tiller blades, each drum being attached to the shaft by one or more pins held by spring keeper keys passing through an interior sleeve of the drum and the shaft. Spider assemblies space the exterior surface of the drum from the sleeve while still allowing access to the pins from the exterior of the drum. On the surface of the drum a number of radially outwardly extending teeth are provided, the teeth being arranged in spiral courses and in circumferential rows. The teeth preferably are cylinders about one and one-half inch long and half-inch in diameter. The invention is useful for tilling, cultipacking, dethatching, seedbed preparation, and aeration.
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