Shoring shield
US5209606A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 3, 1992 |
| Grant date | May 11, 1993 |
| Priority date | — |
| Expiry date | Jan 3, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87885
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention comprises a lightweight, portable, adjustable, reusable, preassembled, hydraulic expandable shoring shield for providing safety to personnel working in below-grade excavations. The Shoring shield comprises specially designed solid aluminum extruded sheeting sections forming the walls, each mounted with a top cap and lower skid, the walls are provided with a static expandable telescoping structural framework for holding the walls opposed, and also are provided with hydraulic cylinders for expanding the space enclosed between the walls, the framework and cylinders thus cooperate in combination with an armored manifold for routing fluid to the cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.