Patent ID: 6523190
Filing Date: 2003-02-25
Classification: E04H

Abstract:
A heat retaining swimming pool cover (1) for floating disposition on pool water (2) in a swimming pool (3), comprising:(a) a plastic upper film (5) for facing toward the atmosphere (6); (b) a plastic lower film (8) for facing toward the pool water (2); (c) sufficient spaced apart air pockets (10) configured unto the lower film (8) for containing air such that the cover (1) is floatable on the pool water (2); (d) sealed land areas (11) between the air pockets (10) such that the upper and lower films (5, 8) are sealed to each other; and wherein the lower film (8) contains an effective amount of an I.R. absorbent but the amount is insufficient to prevent atmospheric sunlight (14) from substantially penetrating the lower film (8) and passing into the pool water (2).