Structure of desk lamp
US4975815A · kind A · utility
8Cited by
2References
1Claims
0Family size
Inventor
Key dates
| Filing date | Apr 11, 1990 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Apr 11, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V21/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A desk lamp, which comprises a lamp holder having an unitary sleeve for the insertion therein of a first piece of wedge block to secure a journal therein by means of a doweled joint; a rod support having one end fastened in the journal and an opposite end fastened in a connector which is coupled with a second piece of wedge block through a doweled joint and fastened in a vertical sleeve of a lamp stand; and a control knob secured to the connector through a sleeve joint to control the positioning of the rod support on the lamp stand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.