Flashing light indicator structures
US4253085A · kind A · utility
9Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1978 |
| Grant date | Feb 24, 1981 |
| Priority date | — |
| Expiry date | Aug 28, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2111/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An indicator structure including one or more lengths of perforated tubing arranged in a desired configuration, such as a traffic barricade. The tubing contains one or more flash lamps which produce a light-tunnel effect during operation to provide a high intensity warning or indicating signal in a pre-selected configuration of flash illumination via the tubing perforations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.