Guidance system control
US5224551A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 1991 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | May 31, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B69/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A switch assembly which is attached to a portion of the agricultural tractor and implement combination in order to control operation of a guidance system. The switch assembly includes a switch, a switch support assembly, an attachment assembly, and an adjustment assembly. The switch is a mercury tilt switch which is designed for horizontal mounting. The switch is activated when tilted above the horizontal and is deactivated when tilted below the horizontal. The switch assembly is mounted to the hitch system of an agricultural tractor. When the operator raises the hitch system, the mercury switch automatically switches the control system from the automatic mode to the manual mode. When the operator lowers the hitch system, the mercury switch automatically switches the control system from the manual mode to the automatic mode. The switch is sealed to prevent dirt and debris from interfering with the operation of the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.