Illuminated sign housing assembly
US5634287A · kind A · utility
88Cited by
10References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1995 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Sep 8, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/812
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sign (10) includes a sign housing (16) defining an internal cavity (32). The sign housing (16) includes front and rear faces (18, 20) having indicia or an instruction thereon and slotted apertures (22) defining the indicia. A lens housing (60) is secured within the cavity (32) and includes raised surface portions (26) which protrude through the slotted apertures (22). Light emitting diodes (28) are positioned within the lens 15 housing (60) to illuminate the indicia. The sign housing (16) and lens housing (60) are sealed to protect the LEDs (28).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.