Control barrier with support legs
US5993103A · kind A · utility
33Cited by
60References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Apr 22, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/70
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A control barrier is provided having a barrier wall with one or two support legs attached thereto. The barrier wall has a front face with a display recess formed therein and an internal cavity for selective filling with a ballast material. Each of the support legs are hingedly mounted to the back face of the barrier wall so as to selectively fold flat. Each support leg has an interior surface defining an internal chamber for selective filling with a ballast material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.