Trap means for center pivot irrigation system
US4156504A · kind A · utility
4Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1977 |
| Grant date | May 29, 1979 |
| Priority date | — |
| Expiry date | Mar 16, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G25/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Improved apparatus for flushing particulate matter from the pipeline of a center pivot irrigation system. The improved apparatus provides a length of downwardly extending pipe interposed in the pipeline in the immediate vicinity of or contiguous to the outermost mobile tower assembly of a plurality of such assemblies transporting the pipeline, permitting an operator standing on the ground to open the pipe during flushing. The downwardly extending pipe includes a restrictive opening for limiting the rate at which water is released from the pipeline during flushing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.