Earth working – Rolling – rotating or orbitally moving tool
Patent
1982-12-06
1985-06-11
Johnson, Richard J.
Earth working
Rolling, rotating or orbitally moving tool
301 63DD, 172538, A01C 720, A01C 1300
Patent
active
045222681
ABSTRACT:
Peripheral strengthening of double dished packer wheels used in connection with seeding implements is accomplished by providing a rigid connection for a strong, rigid annulus between the dish-shaped sides of the wheels.
REFERENCES:
patent: 1378876 (1921-05-01), Lachman
patent: 1444224 (1923-02-01), Wagner
patent: 1602630 (1926-10-01), White
patent: 2355941 (1944-08-01), Ash
patent: 3033135 (1962-05-01), Gouin
patent: 3228485 (1966-01-01), Ten Pas
patent: 3752237 (1973-08-01), Hornung
Morris George H.
Nicholls Douglas C.
Johnson Richard J.
Morris Rod Weeder Co. Ltd.
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