Method and apparatus for aligning channel sections with an adjustable alignment key
US6860678B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2003 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Mar 22, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F3/046
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A channel system for forming a trench is disclosed that includes a number of precast drainage channel sections and one or more alignment keys for aligning and interlocking adjacent channel sections. Each alignment key includes a base shaped for laterally bridging across a predetermined exterior portion of adjacent bottom walls of the adjacent channel sections. The alignment key also includes first and second opposed, inwardly facing jaw members shaped for longitudinally bridging across a predetermined exterior portion of adjacent first and second sidewalls, respectively, of the adjacent channel sections. Each pair of the jaw members can be carried by a respective base, and can be positioned in a lateral and longitudinal direction relative to the respective base to thereby substantially align and interlock the adjacent channel sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.