Self activating falling water display
US5381956A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1993 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Aug 26, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7319
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A water display that has a container with a floor that defines an inner cavity. The container has a top opening adapted to allow a fluid to flow into the inner cavity at a first predetermined flowrate. The floor is constructed to contain the fluid when the fluid flows into the inner cavity, such that the fluid reaches a first predetermined level within the container. The floor also has a floor opening adapted to allow the fluid to flow out of the inner cavity. Within the container is a valve operatively connected to the floor opening that allows the fluid to flow out of the inner cavity at a second predetermined flowrate, when the fluid level reaches the first predetermined level. The second flowrate being greater than the first flowrate, such that when the valve allows the fluid to flow out of the container, the fluid level in the inner cavity decreases until the fluid level reaches a second predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.