04287955 is referenced by 12 patents and cites 23 patents.

A rotary tiller device with a rotor disposed for rotation about a vertical axis is adapted for mounting on the lift arms of a mobile vehicle and includes a yieldable arm suspension mechanism and spring tiller teeth depending downwardly from the rotor, both of which in combination with each other provide uniform tillage depth control of the device. The rotor assembly can be moved laterally inwardly and outwardly with respect to the frame, and the beam can be adjustably swiveled about a vertical axis such that the rotor can be positioned to the left side, right side, or front of the frame or vehicle.

Title
Rotary tiller device
Application Number
6/46160
Publication Number
4287955
Application Date
June 7, 1979
Publication Date
September 8, 1981
Inventor
Jack F Anderson
Marion, 58466
ND, US
Agent
Young & Martin
IPC
A01B 59/048
A01B 39/16
A01B 33/06
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