Water level maintenance device
US5473837A · kind A · utility
14Cited by
4References
2Claims
0Family size
Inventors
Key dates
| Filing date | Sep 28, 1994 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Sep 28, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47G2033/1293
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for maintaining a water level within a fluid reservoir, such as a Christmas tree stand or aquarium. The inventive device includes a pump for supplying water from a container to the fluid reservoir. A switch responsive to the water level of the reservoir communicates with the pump to effect energization thereof as the water level declines. The pump preferably includes a resilient stopper to permit mounting of the pump to an empty bottle or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.