Automatic reversible wheel track filler

Details Automatic reversible wheel track filler Automatic reversible wheel track filler

1983-11-29

1986-07-22

Johnson, Richard J.

Earth working

Diverse tools

One located in path of implement wheel

172200, 172676, 172236, 172712, 254 94, A01B 6308, B66F 722

Patent

active

046013474

ABSTRACT:
A direction of movement sensing apparatus is shiftably supported from the wheel track filling structure of a wheeled support tower for an irrigation pipe and is operative to shift between a first inoperative position assumed thereby when the tower is moving in a forward direction toward a second operative position relative to the wheel track filling structure when the tower is moved rearwardly over the ground. Connecting structure is provided and operatively connected between the direction sensing apparatus, the wheel track filling structure and the tower for raising the wheel track filling structure responsive to movement of the sensing apparatus to the second operative position thereof and thus enabling the tower to move rearwardly without damage to the wheel track filling structure.

REFERENCES:
patent: 1108263 (1914-08-01), Smith
patent: 2502835 (1950-04-01), Dunsdon
patent: 2673434 (1954-03-01), Babinchak
patent: 3230969 (1966-01-01), Purtell
patent: 3652056 (1972-03-01), King
patent: 3951383 (1976-04-01), Tenney
patent: 4059911 (1977-11-01), Bean et al.
patent: 4262752 (1981-04-01), Parish

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