Aquarium filtering and heating system
US5628281A · kind A · utility
Inventor
Key dates
| Filing date | Jan 26, 1995 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Jan 26, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K63/065
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An energy efficient aquarium system with a separate cover wherein the lamp or lamps are located below the filters and filter ponds thus heating the filter pond bottom and sides to further heat the water contained in the filter ponds thus eliminating the need for a separate heater and further saving the energy required to heat the water as it flows into the aquarium. Floats each with a filter condition indicator bar are located in the filter ponds wherein the filter condition indicator bars extend through the cover and further indicate the condition of the filter as the water rises in the filter ponds due to the filters filling up with debris that restricts the flow of water passing through the filter; as the water rises in the filter ponds, the float rises and further causes the filter condition indicator to rise wherein it may easily be seen. When the filter condition indicator rises to a predetermined height, the owner of the aquarium would be given notice that the filters need to be changed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.