Lamp device having a detachable lamp shade
US5980068A · kind A · utility
10Cited by
1References
10Claims
0Family size
Inventor
Key dates
| Filing date | Sep 26, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Sep 26, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V17/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lamp device includes a light bulb secured to a lamp base and a lamp shade having one or more hooks for engaging with the lamp base and for allowing the lamp shade to be easily disengaged from the lamp base. The lamp base includes a shell extended downward from the bottom peripheral portion for forming an annular groove between the lamp base and the shell and for engaging with the hooks. A projection extends into the annular groove for engaging with the hooks and for allowing the lamp shade to rotate the lamp base without contacting the hand with the light bulb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.