Rotating message device
US3962806A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 26, 1974 |
| Grant date | Jun 15, 1976 |
| Priority date | — |
| Expiry date | Dec 26, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F13/0454
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A rotating message device having upper and lower plates, a plurality of side panels forming a body with a hollow interior and a drive motor disposed in the hollow interior and connected to a supporting structure by arms extending upwardly through the top plate. At least some of the panels are partially transparent and a light means is disposed in the hollow interior to light up the transparent panels. The panels are replaceably held in vertical position along the sides by posts interconnecting the upper and lower plates and by flexible strips placed in front of the posts, thus permitting the panels to be inserted and removed whenever messages or signs are to be changed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.