Earthen liner with clay seam cover
US6197398A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1999 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Nov 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/197
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A geosynthetic liner may be formed of sheets of substantially liquid impermeable synthetic material such as high density polyethylene. The adjacent edges of adjacent sheets may be lapped over one another to form a lapped joint. The lapped joint may be covered by a relatively narrow seam cover which seals the region between the two sheets. The cover may be formed of a geomembrane layer over a clay layer. The clay layer may be formed of particles of bentonite which are adhesively secured to the geomembrane layer. Thus, the geomembrane liner seam may be sealed by simply unrolling the cover over the lapped joint and covering the sheets and the cover with a layer of overburden.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.