Backlighted trip indicator
US4688512A · kind A · utility
1Cited by
6References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1986 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Jul 10, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S116/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A back lighted trip indicator for a circuit breaker comprising an opaque tubular shield and a light translucent prism telescopically received in the shield and movable from a position totally within said shield when the manual operator is in the "ON" position to an exposed condition when the manual operator moves to the "OFF" position thereby to reflect ambient light through a frontal face on the prism to back light indicia on the frontal face of the prism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.