Aerobic aquarium filter chamber
US5397463A · kind A · utility
29Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1993 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Oct 13, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K63/045
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A combination of a physical filter and aerobic filter positioned entirely on the outside of an aquarium tank. Water is pumped into the physical filter chamber and upon reaching a level above the chamber walls of the physical filter it spills by gravity flow to both an aerobic filter also contained within the housing and back into the aquarium tank. The water entering the aerobic filter is filtered and passed back to the physical filter where the filtering is repeated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.