Electrified bulletin board with illuminable push-pin
US5010463A · kind A · utility
Inventor
Key dates
| Filing date | Apr 30, 1990 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Apr 30, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is an electrified bulletin board display assembly including a composite board and an illuminable push-pin for insertion therein. The board itself includes a pair of conducting layers spaced apart by an insulative layer and connected to an electrical power source. When inserted into the bulletin board, bi-terminals of the push-pin each respectively contacts one of the conductive layers. An additional layer is provided in the board to retain the push-pin in the assembly and ensure contact between the conductive layers and the bi-terminals. As constructed, the entire field of the bulletin board is capable of receiving and illuminating a number of illuminable push-pins randomly inserted therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.