Water displays
US4955540A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1988 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | Feb 26, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/01
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Water displays utilizing laminar flow streams to create dynamic arch-like displays are disclosed. The laminar flow nozzle is mounted on an assembly for changing the angle and repositioning the laminar flow nozzle so that the laminar flow stream appears to eminate from a fixed location at different angles, which allows varying the characteristics of the display in a dynamic manner. Simultaneous control of the nozzle position and angle with control of the pressure of water supplied thereto allows the stream to be varied to create a dynamic display with the stream returning to a sink region at a fixed position independent of the height of the water stream. Illuminating the laminar flow stream internally causes the same to glow like a fluorescent tube with the color being supplied thereto, changeable as desired. Intersecting laminar flow streams provide interesting water formations, with the intersection of two streams of different colors causing still a third color at the flared region of the intersection. Features of the invention are useable independently, all in the same apparatus, or in various combinations as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.