Engineered environmental structure and method of its use
US6402426B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2001 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Jan 12, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B3/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An engineered log jam for controlling stream flow characteristics is formed from multiple layers of logs. A first layer intended to be placed parallel to stream flow consists of two or more generally parallel logs. In normal use these would be anchored to the stream bottom. A second layer of logs is placed on top of the first. This also consists of a plurality of spaced apart logs crossing the first layer. The second layer logs are angled with respect to each other to control and direct water flow passing over and through the structure. A third layer of spaced apart logs crosses the second layer logs and further acts to direct water flow. Additional layers may be used as might be dictated by the use environment. The logs are permanently joined to each other at the points of crossing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.