Rotating chemiluminescent fan blade light display
US6367942B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 7, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Feb 7, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21K2/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Due to the persistence of human vision, moving light sources tend to be perceived not as point sources, but as continuous streaks or arcs of light. Many toys, novelty items, and light show devices make use of this peculiarity of human vision by moving light sources to produce visually striking patterns of light and color. In addition to dedicated devices for this purpose, inventive minds have employed simple household devices such as fans to produce the movement necessary to provide an interesting light show. In the past, these have all relied on electrically operated lights. Unfortunately, complications arise in designing and implementing a means to provide electrical power from a stationary power source to electric lights attached to moving fan blades. Further complications arise in trying to adapt this design to fans of different configurations, sizes, and shapes. Most of the types of light displays utilizing fans for movement of the light sources in space are only applicable to a single model or brand of fan and require extensive modification and much technical skill to install them.The invention described herein solves these problems by demonstrating a method for attaching che…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.