Closely spaced back-lit push button array
US5012054A · kind A · utility
10Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1990 |
| Grant date | Apr 30, 1991 |
| Priority date | — |
| Expiry date | May 14, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S200/47
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A back-lit push button array which permits close spacing of the buttons while preventing light leaks between the buttons. The buttons are individually keyed into the outer shell of a housing to provide lateral support while permitting axial movement, and interleaving laterally extending features are formed on juxtaposed sidewalls of the buttons within the housing to prevent interbutton light leaks. This permits the buttons to be spaced very closedly, and there is no limitation on the size of the symbols or legends other than the dimensions of the button face itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.