Three dimensional display device using water fountain
US4094464A · kind A · utility
17Cited by
5References
7Claims
0Family size
Inventors
Key dates
| Filing date | Nov 5, 1976 |
| Grant date | Jun 13, 1978 |
| Priority date | — |
| Expiry date | Nov 5, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F9/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A water fountain device having stepwisely arranged nozzles in matrix. The water fountain may be displayed to express clock, characters or notations under control of electromagnetic valves controlled by program in a controller. The display is in three dimension so that it is very easy to be seen from the ground level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.