Self-steerable wheel assembly for irrigation systems
US4432494A · kind A · utility
Inventor
Key dates
| Filing date | Mar 13, 1981 |
| Grant date | Feb 21, 1984 |
| Priority date | — |
| Expiry date | Mar 13, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/01
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a self-propelled irrigation system, a wheeled support assembly is specifically adaptable for use in controlling the movement of an articulated or corner boom with respect to the rest of the system, the wheeled support assembly being characterized in that the wheels are self-aligning along a desired path of travel in accordance with the angular relationship between the corner boom and rest of the irrigation system. The invention has particular application to center pivot types of irrigation systems for the purpose of uniformly irrigating the corner areas of a generally rectangular field outside of the circular path of travel of the irrigation system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.