Trench-box panel
US4993880A · kind A · utility
27Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 3, 1990 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | May 3, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D17/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A trench-box panel (200, 202) comprises an array of horizontal elongate "C-section" members (210) one on top of another and welded together at w continuously along their lengths. The members (210) are longitudinally staggered to leave spaces (234) between the ends of alternate members (210) at each side edge (200C, 202C) of the panel (200, 202). Robust vertical angle-members (236) and flat members (238) are welded to the ends of the horizontal members (210) to seal the ends of cavities (220) inside the horizontal members (210).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.