Collapsable dam
US4279540A · kind A · utility
15Cited by
2References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 9, 1979 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Feb 9, 1999 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B7/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A deformable dam made of an impermeable flexible membrane secured in a water tight manner to the bottom and side walls of a river. The flexible membrane is inflatable using either air or water, or a combination to vary the overall effective length of the dam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.