Irrigation system and drive unit therefor
US4277028A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1976 |
| Grant date | Jul 7, 1981 |
| Priority date | — |
| Expiry date | Dec 20, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G25/09
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An irrigation system for irrigating an area of a field and which includes a liquid conduit extending over a portion of said area to be irrigated. The conduit is supported by wheels which rotate with rotation of the conduit. The system includes a drive unit which is supported for movement on the ground along a path by wheels which are rotatably mounted thereto. The conduit is rotatably mounted to the drive unit for rotation about a generally horizontal axis generally normal to the defined path of the drive unit. The drive unit supplies liquid to the conduit and includes means for rotatably driving the conduit and for driving the drive unit along the path, and further includes a control system for selectively varying the relative speed of the drive unit and conduit in response to fore and aft displacement of the drive unit relative to the conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.