Load bearing solar powered displays
US4470213A · kind A · utility
119Cited by
13References
19Claims
0Family size
Inventor
Key dates
| Filing date | Jan 14, 1983 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | Jan 14, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/921
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A power assembly for rotating a display is simple, inexpensive, has long life, and can rotate even heavy displays. A housing mounts a d.c. motor having an output shaft, and has a support structure. A ball bearing assembly, having a second shaft, is stationarily held by the support structure, and a flexible tubular connector interconnects the motor output shaft and the second shaft. The display is attached to the second shaft by a flexible band of elastomeric material. An electronic circuit provides power pulses from a substantially constant d.c. power source (such as a bank of solar cells) to operate the d.c. motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.