User activated fountain display
US4817312A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Feb 18, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B17/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sound activated fountain display. A plurality of transducers are disposed on the bottom of the pool of a fountain display with the fountain being normally off. Whenever a coin is tossed into the fountain's pool, the sound waves generated by the coin are received by the transducers, activating the fountain display. By gating the responses of the various transducers, the area of the pool in which the coin was tossed may be identified. In this manner, the display may be caused to be directed to that area of the pool, customizing the display for that particular viewer. If desired, the fountain display may be in a central pool with separate "satellite" coin pools surrounding the fountain and for activating the fountain display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.