Earth working – Plural relatively movable tools – Spring formed tool or standard
Patent
1981-01-26
1982-08-03
Johnson, Richard J.
Earth working
Plural relatively movable tools
Spring formed tool or standard
172707, 172198, 56400, A01B 2302
Patent
active
043423663
ABSTRACT:
A mulcher that includes a longitudinal member having one end adapted for connection to a mobile power source, a beam member extending transversely of the connecting member and connected thereto and also having a downwardly opening channel configuration, a generally curved bar located in the channel configuration, a mounting structure for connecting the curved bar to the beam member and a spring tooth structure having a pair of spaced axially aligned coil portions and an intervening connector portion pivotally mounted on the curved bar with a tooth portion extending downwardly from the endmost convolutions of the coil portions. The connector portion engaging the mounting structure when the mulcher is towed and the tooth portions engage the soil with the coil portions winding up on the curved bar. The connector portion moving away from the mounting structure until the tooth portions contact the channel when the mulcher is backed up with the tooth portions in the soil.
REFERENCES:
patent: 1950834 (1934-03-01), Wyss
patent: 2607183 (1952-08-01), Happe
patent: 2826027 (1958-03-01), Melroe
patent: 2990021 (1961-06-01), Johnson
patent: 3014335 (1961-12-01), Nolt
patent: 3049184 (1962-08-01), Lorman
patent: 3774694 (1973-11-01), Gates
patent: 4127341 (1978-11-01), Stevens
patent: 4304306 (1981-12-01), Maust
Wil-Rich Mounted Coil Tooth Harrows of Field Cultivators and Chisel Plows 10-15-79--Wil-Rich Inc., Wahpeton, N. Dak.
Ralph Harold D.
Schenk Dale C.
Au Buchon F. D.
Getchius J. J.
International Harvester Co.
Johnson Richard J.
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