04518043 is referenced by 117 patents and cites 25 patents.

The disclosure in this patent application includes a retractable in-row tiller device that has a parallelogram carriage structure for supporting the outrigger arm and tiller and for retracting and extending the outrigger arm and tiller in relation to the tractor on which it is mounted. It also includes an electro-hydraulic control system with a single wand plant feeler device that provides very accurate and responsive automatic control to guide the tiller around plants and which can be overridden and operated manually with ease and accurateness. It also includes an automatic positive depth control feature operated electro-hydraulically by a gauge wheel.

Title
Tool apparatus with control to move tool when object approached
Application Number
6/406318
Publication Number
4518043
Application Date
August 9, 1982
Publication Date
May 21, 1985
Inventor
Floyd Melrose
Brookings
SD, US
Clayton Melrose
Oakes
ND, US
Jack F Anderson
Marion, 58466
ND, US
Agent
Young & Martin
Assignee
Jack F Anderson
ND, US
IPC
A01D 35/00
A01B 13/04
A01B 65/02
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