Multi-filtration auto-drainage/irrigation pipe and planting device
US9596812B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2014 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Jun 13, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F1/002
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multi-filtration auto-drainage/irrigation pipe includes a pipe body, which includes a first drainage and irrigation channel, a second drainage and irrigation channel, a third drainage and irrigation channel, a first drainage and irrigation port, a second drainage and irrigation port and a third drainage and irrigation port. The first drainage and irrigation port is a first filtering layer having first filtering holes uniformly distributed. The second drainage and irrigation port is a second filtering layer having second filtering holes uniformly distributed. The third drainage and irrigation port is a third filtering layer having third filtering holes uniformly distributed. The first drainage and irrigation port is arranged on a pipe wall of the pipe body. The second drainage and irrigation port is arranged between the second and the third drainage and irrigation channels. The third drainage and irrigation port is arranged between the second and the first drainage and irrigation channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.