Light bulb apparatus
US11002413B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2020 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Apr 28, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light bulb apparatus includes a bulb shell, a bulb head and a light source module. The bulb shell has a light passing portion and a neck portion. The neck portion has a first protruding ring, a first gap ring and a second protruding ring. The bulb head has a body portion and a cap portion. The neck portion has a third protruding ring, a second gap ring and a fourth protruding ring. The first protruding ring is placed in a second concave structure, the fourth protruding ring is placed in a first concave structure. The light source module is enclosed by the bulb shell and emitting light passing through the light passing cover of the bulb shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.