Power saving environment protection bulb
US6462475B1 · kind B1 · utility
Inventor
Key dates
| Filing date | May 31, 2001 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | May 31, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power saving environment protection bulb comprises a cover disk having a plurality of ring portions formed therein; at a lower sides of the holes near the bottom of the cover disk being installed with tapered tracks; edges of the bottom of the cover disk being installed with tenons which are spaced with an equal distance; a circuit disk having holes for positive and negative electrodes; a middle section of the end piece having two lateral plates arranged continuously; each plate having a protrusion for sealing a taper groove on the cover disk, upper ends of the plates being formed with a sleeve which is conformable to the hole of the cover disk; a transformer plate having one side installed with two inserting tubes; a lamp seat being a plastic casing; a casing of the seat being combined with a copper cap; an inner side of the casing being formed with buckling grooves, which are arranged with equal space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.