Three dimension collapsible lampshade
US7497602B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Feb 8, 2007 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Feb 8, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V1/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A three dimension collapsible lampshade mainly includes a collapsible rib foldable on a cubical surface and a pliable fabric cover foldable on a plane. The pliable fabric cover has a flexible ring at a lower rim that may be fixed or folded in a desired shape. The collapsible rib and the pliable fabric cover are separable. By coupling the collapsible rib and the pliable fabric cover a cubical lampshade can be formed. The lampshade may also be folded in three dimensions. Compared with the conventional lampshades that are foldable only in two dimensions, the invention can save the cost of package material and transportation. The separable design also allows consumers to change and replace the pliable fabric cover as desired after purchase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.