Rotary mower and tilling device

Details Rotary mower and tilling device Rotary mower and tilling device

1986-11-17

1989-02-14

Johnson, Richard J.

Earth working

With drive means for tool or cleaner

Blade movable with respect to cyclically driven carrier

56294, 172 45, 172125, A01B 3304, A01B 4904

Patent

active

048040479

ABSTRACT:
A rotary tilling device has a cutting device having a plurality of cutters each of which is rotatably mounted by a bolt on a supporting member at a base end thereof. The cutter has a vertical portion and a lateral portion at an end of the vertical portion and has edges on both sides of the vertical and lateral portions. A stopper for receiving the cutter in a tilling position and a spring plate for resiliently holding the cutter in the tilling position are provided on the supporting member.

REFERENCES:
patent: 2990667 (1961-07-01), Schwalm
patent: 3028919 (1962-04-01), Smith
patent: 3093951 (1963-06-01), Barows
patent: 3128729 (1964-04-01), Henson
patent: 3557880 (1971-01-01), van der Lely
patent: 4338771 (1982-07-01), Hummel
patent: 4492271 (1985-01-01), Doering
patent: 4519459 (1985-05-01), Reaume
patent: 4556113 (1985-12-01), Saito
patent: 4611669 (1986-09-01), Ballard

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