Stable floating device for reducing evaporation in open pools

Abstract

This invention corresponds to a flotation device comprising a cylindrical body having perimetral flotation cavities; a predetermined quantity of air deposited and enclosed in each of such cavities; and covers to cover said cavities.

1 . A flotation device stable under adverse weather conditions that reduces evaporation in open lagoons, COMPRISING:
 A cylindrical body ( 6 ) having at least eight perimetral cavities ( 7 ); at least eight covers ( 8 ) to cover the perimetral cavities; and a predetermined quantity of air deposited and enclosed in each of such cavities in the cylindrical body.   
     
     
         2 . The floating device according to  claim 1  wherein the cylindrical body ( 6 ) is formed by a pyramidal cover ( 1 ) that has a rounded exterior edge; the perimetral cavities ( 7 ), which surround the entire rounded edge of the pyramidal cover ( 1 ), wherein the cavities are open toward the top of the cylindrical body and the bottom of such cavities ( 2 ) is closed and flat; a perpendicular sidewall ( 3 ) along the entire perimetral edge of the cylindrical body; a central opening ( 4 ); and at least six radial structural ribs, preferably at least eight radial structural ribs ( 5 ) located in the bottom of the pyramidal cover ( 1 ). 
     
     
         3 . The floating device according to  claim 2  wherein the sidewall has a height that varies from approximately 10 cm to approximately 20 cm. 
     
     
         4 . A floating device according to  claim 1 , wherein the perimetral cavities preferably number  16  and wherein each cover covers  2  perimetral cavities; and wherein such cavities have a depth that ranges from approximately 3 cm to approximately 5 cm and a width radial to the cylindrical body that ranges from approximately 6 cm to approximately 12 cm. 
     
     
         5 . The flotation device according to  claim 1 , wherein the total quantity of air that is deposited and enclosed in all cavities ranges from approximately 10,500 cm 3  to approximately 13,500 cm 3 . 
     
     
         6 . The floating device according to  claim 2 , wherein the lower edge of the sidewall ( 9 ) is blunt, i.e., it has no point. 
     
     
         7 . The floating device according to  claim 2 , wherein the central opening has a diameter measuring from approximately 0.47 cm to approximately 2.30 cm and the diameter of the floating device varies from approximately 90 cm to approximately 150 cm. 
     
     
         8 . The flotation device according to  claim 1 , wherein the flotation device is made of polyethylene, most preferably high-density polyethylene. 
     
     
         9 . The flotation device according to  claim 1 , wherein each cover has a thickness of approximately 2 mm on the surface and 2 lower ribs, one located along the width of each of the ends of each cover so that the thickness of the cover can be increased at the ends to a value of approximately 2.5 mm; and wherein said covers are welded on the perimetral cavities to keep air from leaking from said cavities. 
     
     
         10 . The flotation device according to  claim 5  wherein the weight of the device is approximately 3.5 to 4.5 kilograms and the total air volume is dependent upon the weight of the device, such weight and volume meeting the following ratio:
   Air volume (cm 3 )=device weight (Kg)*3,000 (cm 3 /Kg) 
 
     
     
         11 . The flotation device according to  claim 2  wherein each of the radial structural ribs ( 5 ) located in the bottom of the pyramidal cover ( 1 ) have a depth or height of approximately 3 cm and a length varying from approximately 39 cm to approximately 63 cm.