Guideway control apparatus
US4440091A · kind A · utility
8Cited by
1References
10Claims
0Family size
Inventor
Key dates
| Filing date | Aug 6, 1982 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Aug 6, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S56/15
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An apparatus for automatically controlling the operation of a non-track machine, such as a tractor used in plowing, fertilizing or mowing, may incorporate a guideway which limits the repetitive closed loop elongate path through which such a slave tractor operates to, electively, increasing or decreasing diametric distances, whereof a trolley, captive to the guideway, electively, pays out or takes in a control tether cable controlling the steering operation of the slave tractor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.