Method of and apparatus for controlling fluid leakage through soil
US4786208A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1986 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Jul 14, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B3/122
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Fluid leakage through soil in a region thereof is controlled by sequentially passing over the region to dig a plurality of parallel, laterally displaced grooves in the surface. Soil dug from each groove is temporarily stored, and a strip of sheet material is laid over a groove as it is created during each pass, the width of the strip being greater than the width of the groove. Thereafter, the temporarily stored soil is deposited on the strip such that it is covered with soil except along one edge, the other edge of the strip overlying the uncovered edge of an adjacent strip laid down during a previous pass over the region. As a consequence, a first layer of overlapping strips of sheet material covered with soil is installed over the region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.