Draining, irrigating and dispersing mass
US4411555A · kind A · utility
10Cited by
6References
3Claims
0Family size
Inventors
Key dates
| Filing date | Jun 17, 1980 |
| Grant date | Oct 25, 1983 |
| Priority date | — |
| Expiry date | Jun 17, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B11/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The mass for the drainage, irrigation and lightening of soils is constituted by hollow elements (1) delimiting capillar or semi-capillar passages. The elements (1) are bulked up so that they can rest in an irregular fashion one relative to the others by providing inbetween spaces of variable shapes and dimensions. Drainage, irrigation, lightening, enrichment of soils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.