Flexible sign with improved corner bracket
US4426800A · kind A · utility
27Cited by
7References
5Claims
0Family size
Inventor
Key dates
| Filing date | Apr 30, 1982 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | Apr 30, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F17/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flexible message sign particularly intended for highway or roadway applications, and having improved corner brackets. Each corner bracket is made of rigid members which sandwich and securely engage corners of the flexible fabric or other material from which the sign is made. Each corner bracket provides a channel for removably holding ends of frame members which maintain the flexible message panel in message displaying configuration. The frame-receiving channels maintain the frame ends out of contact with the flexible message panel, so that the panel cannot become ripped or torn by engagement with the frame ends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.