Lamp retaining system for traffic signals
US7794122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2008 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Feb 28, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Locking clips are provided for attaching a lamp assembly in a traffic signal housing. The clips use a fixed first portion and a movable second portion. The second portion locks to the first portion or to the housing itself and retains an edge of the lamp assembly, holding it in a window of the housing. Foldable/hinged interlocking clips are provided. Other alternatives include slidable clips that engage a fixed element on the housing (e.g. a fixed pin, or a trough in the housing wall), and rotatable clips that engage a fixed element on the housing (e.g. a fixed pin, or a trough in the housing wall). The clips may be part of a retaining system or a traffic signal. Optional lower holders may also be provided. The invention also includes a method for replacing a lamp assembly in a traffic signal housing with at least one locking clip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.