Tamper resistant sign
US5189822A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1990 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Aug 24, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F7/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tamper resistant sign for flush mounting to a wall or substantially flat surface comprises an elongate, one piece, extruded or pultruded frame. The frame has a back wall and a pair of ribs extending backwardly from respective lateral side edges of the back wall. A pair of open sided channels are positioned along the side edges of the frame. The open sides of the channels face each other and have a clear plastic faceplate positioned therebetween, with the opposite lateral sides of the faceplate being received longitudinally within the respective channels. Molded end caps are provided that seat firmly against the back wall and channel of the frame to close the opposite ends of the sign. The end caps fit securely and tightly in the channels and against the back wall of the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.