Rotary hoe scratcher

Details Rotary hoe scratcher Rotary hoe scratcher

1979-01-22

1980-12-30

Johnson, Richard J.

Earth working

Rolling, rotating or orbitally moving tool

Tool has circumferentially spaced teeth, tines, blades or...

172573, 172705, 172624, A01B 2104

Patent

active

042417937

ABSTRACT:
A set of four rotary hoes are evenly spaced apart laterally so that the distance between the tracks is two inches and the distance between the outside hoes is six inches. The assembly is pivoted about the center to ride over uneven ground. The front and back hoe are removable so that the other two hoes, which are widest apart, may be operated as a rotating shield. The mounting is attached to the tool bar of a tractor and spring biased downward.

REFERENCES:
patent: 798875 (1905-09-01), Cone
patent: 1490514 (1924-04-01), Knutson
patent: 1639307 (1927-08-01), Neu
patent: 1770648 (1930-07-01), Johnson
patent: 3175522 (1965-03-01), Garber
patent: 3203487 (1965-08-01), Whitesides
patent: 3398707 (1968-08-01), McClenny
patent: 3554297 (1967-07-01), Lehman
patent: 3734201 (1973-05-01), Zaun
patent: 3756372 (1973-09-01), Orthman
patent: 3923103 (1975-12-01), Davis
patent: 4055126 (1977-10-01), Brown

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