Lighting device
US5746615A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1996 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Jun 26, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V21/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device has a single end lamp in which a base is disposed at one end of a bulb, and a single end lamp socket into which the base is to be inserted and then twisted to be rotatively engaged with the socket. The lamp has a projection and a lamp pin both projected from a bottom of the base, the tip end of the projection being further projected from the bottom of the base than the tip end of the lamp pin. The socket has a recess into which the projection of the lamp is inserted and rotated by a predetermined angle, as well as a lamp pin insertion hole positioned outside of the recess and concentric with the recess, and having a substantially arcuate shape. A conductor plate which elastically makes contact with the lamp pin is disposed in the lamp pin insertion hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.