Title: Breeding of aquatic animals in a controlled environment

Abstract: In a process for breeding aquatic animals in a controlled environment wherein the aquatic animals are maintained in water reservoirs open to the atmosphere and which have fresh water introduced and fecal waste containing water discharged, and wherein the oxygen content of the water present in the water reservoirs is kept at a value corresponding to desirable growing conditions for the aquatic animals by the introduction of a gas consisting essentially of oxygen or oxygen-enriched air, the improvement which comprises introducing the gas into the zone underneath and/or above the water level of at least one bell partially immersed in the water, feeding water to the lid zone of said bell, distributing the water into a plurality of partial streams of water, passing the streams of water from the lid zone of said bell downwardly inside said bell in counter current contact to said gas, and withdrawing residual gas from said bell.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Berger, Michael (Pullach, DE, US)

Application Number: 826599
Filing Date: 1977-08-22
Publication_date: 1980-01-08
Assignee: Linde Aktiengesellschaft (Wiesbaden, DE)
Primary Class(es): 119/226
Other Classes:
US Patent Ref:

2242429	May, 1941	Johnson	261/124.
2869844	Jan, 1959	Thomas	261/124.
3711330	Jan, 1973	Kierce	261/124.
3799511	Mar, 1974	Svantesson	261/124.
4030450	Jun, 1977	Hoult	119/3.

Other Refs: 21100912602181

Sep, 1971	DE
Jul, 1976	DE

Primary Examiner: Kinsey, Russell R.
Assistant Examiner: Swiatek, Robert P.
Attorney: Millen & White