Earth working – Rolling – rotating or orbitally moving tool – Tool has circumferentially spaced teeth – tines – blades or...
Patent
1978-02-13
1980-08-12
Johnson, Richard J.
Earth working
Rolling, rotating or orbitally moving tool
Tool has circumferentially spaced teeth, tines, blades or...
172120, 37 94, 299 91, 175410, A01B 3310
Patent
active
042168325
ABSTRACT:
A rotary tool is disclosed which is adapted to be mounted on a machine having power drive means and movable over a field surface to produce furrows therein. The rotary tool comprises bit elements mounted in abutting relation from a peripheral surface of a disc and having compacts of hard wear resistant material which form the leading edge of the bit elements that are to engage the earth.
REFERENCES:
patent: 1661692 (1928-03-01), Everist
patent: 1889983 (1932-12-01), Gavard
patent: 3268259 (1966-08-01), Snipe
patent: 3419976 (1976-01-01), Reising
patent: 3519309 (1970-07-01), Engle
patent: 3570566 (1971-03-01), McCreery
patent: 3663063 (1972-05-01), Johnmeyer
patent: 3737199 (1973-06-01), Stephenson
patent: 3749449 (1973-07-01), Krekeler
patent: 3945681 (1976-03-01), White
patent: 3995699 (1976-12-01), Blucher
patent: 4043404 (1977-08-01), Sorlie
patent: 4059161 (1977-11-01), Smith
Hutzell Clyde G.
Stephenson Earle W.
Burns Lawrence R.
Johnson Richard J.
Kennametal Inc.
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