Patent · US Expired

Fish tank system

US4171681A · kind A · utility

6Cited by

4References

6Claims

0Family size

Assignee

Linde GmbH · DE

Inventors

Michael Berger · Pullach, DE
Jurgen Fluchter · Pähl, DE
Hans J. Moeller · Ronnenberg, DE

Key dates

Filing date	May 19, 1977
Grant date	Oct 23, 1979
Priority date	—
Expiry date	May 19, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A40/81
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

In a process for the growing of aquatic animals in a controlled environment wherein water is continuously circulated through a tank, the improvement which comprises introducing fresh water into said tank having an inner wall; at the upper rim sufficiently tangential to said inner wall of the tank and at a sufficient rate to maintain a circular water flow throughout the tank, and discharging wastewater at the lower end of the tank.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.