Earth working – Overload shifting – Resilient latch
Patent
1978-12-11
1980-12-23
Johnson, Richard J.
Earth working
Overload shifting
Resilient latch
172699, A01B 6104
Patent
active
042405092
ABSTRACT:
An assembly for mounting the shank of a ground tool to a clamping plate carried on the tool bar of a soil tilling farm implement. The mounting assembly has a mounting member attachable to the clamping plate, a link member pivotally connecting the mounting member and the tool shank, a yieldable pressure unit for applying pressure on the link member to oppose initial movement of the tool out of an operating position and releasable coacting latch members for normally maintaining the tool in a ground engaging operating position.
REFERENCES:
patent: 275146 (1883-04-01), Clark
patent: 2493811 (1950-01-01), Graham
patent: 2935144 (1960-05-01), Graham
patent: 3402775 (1968-09-01), Leduc
patent: 3700039 (1972-10-01), Essex
patent: 3960220 (1976-06-01), Laitala
Johnson Richard J.
Lowell Rudolph L.
Pingel G. Brian
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