Aquaria inlet means
US4333829A · kind A · utility
18Cited by
11References
7Claims
0Family size
Inventor
Key dates
| Filing date | Jul 9, 1980 |
| Grant date | Jun 8, 1982 |
| Priority date | — |
| Expiry date | Jul 9, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K63/042
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention is concerned with an apparatus for removing foreign matter from the top surface of water, for use with aquaria, which comprises a discharge tube stationarily disposed in the aquarium and having its upper opening rim below the water surface, in which tube is disposed another tube open at the top and bottom and provided with a float in the upper end region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.