Ultrasonic height control of fountain features
US6427927B1 · kind B1 · utility
19Cited by
13References
10Claims
0Family size
Inventor
Key dates
| Filing date | Dec 8, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Dec 8, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B12/124
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fountain which allows interaction by the viewer which alters the fountain's water display. An apparatus and method are disclosed wherein a person viewing the fountain may provide a control indication which causes the fountain display to vary. The preferred embodiment uses an ultrasonic sensor to determine the height of a viewer's hand above a sensor and the water pressure delivered to the fountain is adjusted according to position of the viewer's hand. The invention may use a single or a plurality of sensors to control different groups of jets thereby allowing a large variety of fountain design options.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.