Counterbalance display sign
US4214393A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 1978 |
| Grant date | Jul 29, 1980 |
| Priority date | — |
| Expiry date | Dec 7, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F7/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display sign for outdoor utilization and designed for resisting overturning under strong wind conditions incorporating a relatively enlarged flat panel for carrying an advertising message. A standard for said sign comprising uprights, with the sign being pivotally engaged in its side margins to said uprights for normal swingable action against a transversely extending pivot axis. Said axis is located for coincidence with a line passing through the upper limit of the lower third of said sign and with there being counterweights mounted fixedly at the lower end of said sign for establishing a relatively low center of gravity as well as a predetermined ratio between the lower third and upper two-thirds of said sign to prevent overturning as well as windmill movement during high wind conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.