Aquarium heater
US5057667A · kind A · utility
10Cited by
5References
1Claims
0Family size
Inventors
Key dates
| Filing date | Jul 26, 1989 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | Jul 26, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/78
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An aquarium heating system utilizes a conductive coating on an aquarium glass viewing window to heat the aquarium water. The conductive coating is transparent and is disposed on the surface of at least one viewing window. A voltage is supplied to the conductive coating under control of a power supply which operates to maintain the water at a constant temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.