Portable improved structure of quartz lamp
US5307255A · kind A · utility
Inventor
Key dates
| Filing date | Feb 2, 1993 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Feb 2, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/1005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved structure of portable quartz lamp with a lamp housing having a handle and a central post therebeneath, which has between a stand and the central post a connecting piece having a hollowed interior and has an upper and a lower axial pipe portions, the upper one is threadably connected with the central post, and the lower one has its bottom end supported on a top surface of the stand and connected with a bolt thereunder; power conductors are connected in such a way that they will not be tangled with one another when in adjustment of light intensity; the rear surface of the connecting piece has a case for shielding the adjusting mechanism; the adjustment can therefore be effected unafraid of rain infiltration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.