Boom barrier
US8011797B2 · kind B2 · utility
10Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2009 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Dec 24, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F13/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Boom-type barrier (1) comprising a boom (2) mounted on a bracket or stand (3) for movement between open and barring positions. The boom (2) is designed as a tubular member transmissive of light and has therein a band (7) on which are mounted light emitting diodes (6) extending substantially the full length of the boom (2). The light emitting diodes (6) are controlled by an electronics module (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.