Earth working – Plural relatively movable tools – Tool pivots on pivoted member when member moves
Patent
1975-03-19
1976-08-24
Pinkham, Richard C.
Earth working
Plural relatively movable tools
Tool pivots on pivoted member when member moves
172198, 172618, 172639, 172643, 172712, 172763, 403162, A01B 2304, A01B 4902
Patent
active
039761452
ABSTRACT:
An inverted U-shaped bracket is designed to flexibly mount transverse harrow tine supporting bars for independent movement of each other upon longitudinally extending implement carrier arms to permit drag angle adjustment and ability to back up without digging in.
REFERENCES:
patent: 344804 (1886-07-01), Beebe
patent: 461334 (1891-10-01), Harvey
patent: 508398 (1893-11-01), Beach
patent: 1798739 (1931-03-01), Hoiland
patent: 2619887 (1952-12-01), Burrows
patent: 2735251 (1956-02-01), Dlugosch
patent: 3263757 (1966-08-01), Kaster
Pinkham Richard C.
Stouffer Richard T.
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