Detachable harrow sprayer

Details Detachable harrow sprayer Detachable harrow sprayer

1992-01-31

1993-10-12

Corbin, David H.

Earth working

Plural wheeled implements

Outrigged implement adjustable inwardly

172247, 172249, 172252, 172253, 172763, 172753, 403325, 239168, A01B 4906

Patent

active

052517047

ABSTRACT:
There is disclosed a new and improved rearwardly folding combination harrow sprayer drawbar. A plurality of quick detach harrow arms are adapted to be quickly connected and disconnected to a plurality of harrow arm receivers. The implement can be used for spraying and harrowing at the same time, or once the harrows are detached and left in the field, the implement can be used for post-emergent spraying. A wet spray boom can be height adjusted by means of a plurality of manual spring loaded levers. The unit is equipped with hinged boom draws which can be pinned to be rigid such that it can be moved rearwardly in order to re-attach the harrows quickly and easily. The unit is also capable of lifting the harrows into a transport position and folding rearwardly into a narrow transport position in order to pass over roads or move through narrow entrance ways.

REFERENCES:
patent: 1885369 (1932-11-01), Bogart
patent: 3091296 (1963-05-01), Lohrman et al.
patent: 3107055 (1963-10-01), Palmer
patent: 3774694 (1973-11-01), Gates
patent: 4171172 (1979-10-01), Johnston
patent: 4299292 (1981-11-01), Hughes
patent: 4739930 (1988-04-01), Pask
patent: 4813489 (1989-03-01), Just et al.
System 82 Flexi-Coil Harrow Drawbar.

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