Water-turbulence light-shielding method and apparatus for confined-volume fish growth and the like
AssigneesRobert H. Rines, Carol M. Rines
InventorAlbert H. Knowles
Life of this patent
Estimating the term…
Abstract
This disclosure is concerned with creating relatively darkened or light-shielded coverings along and upon a substantial selected area of the surface of a pond or other confined fish-holding water volume in the form of surface turbulence generated over said selected area by water spraying or other agitation, with calm illuminated feed zones adjacent but external to said selected area.
Claims9
A method of providing at least a partially light-shielded surface area in a confined fish-holding water-circulating volume, that comprises, producing turbulence over a selected area of predetermined defined shape occupying a substantial portion of said surface that reduces the amount of light entering the volume under said selected area and thereby provides a uniform light-subdued region thereunder, by agitating the surface of said volume over said selected area;
- illuminating relatively calm regions external to said selected area;
- and applying feed to said calm regions while continuing agitation over said selected area.
Apparatus for providing at least a partially light-shielded surface area in a confined fish-holding water-circulating volume, having in combination with said confined water volume, means for agitating a selected area of the surface of said volume in a predetermined defined shape occupying a substantial portion of said surface to generate an effective light-reducing turbulent covering over said selected area;
- means for inhibiting the spread of the turbulence to the regions of the surface external to the boundaries of said selected area to maintain the same as relatively calm regions;
- and means for illuminating feed applied in said calm regions.
Dependencies are inferred from the claim text.