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Swimming pool cover and solar heater
| Details |
Inventors: Dolza, John; Dolza, Paul B.;
Assignee:
Primary Examiner: Scott; Samuel
Assistant Examiner: Jones; Larry
Attorney, Agent or Firm: McGlynn and Milton
A swimming pool cover having at least a portion of which is made of material allowing solar energy to pass therethrough coacts with a solar heating mat in the pool to retain heat developed by the mat. The dark-colored mat has a specific gravity sufficiently greater than that of water to allow the mat to sink to the bottom of the swimming pool. The mat is made of a pliable material and has a crossbar member to facilitate rolling of the mat so that the surface area of the mat may be varied in order to provide control of the temperature of the water. A cylindrical air sac is connected to the cover, which is made of pliable material, and is positioned adjacent an edge of the cover in order to allow rolling and unrolling of the cover and is sufficiently buoyant to support the cover in the water when the cover is in rolled and unrolled positions and during movement therebetween. In one embodiment the air sac is removably connected to the cover by fastening means while in another embodiment the air sac is integrally formed from a portion of the cover. Additionally, a plurality of air sacs and covers may be connected together. Also, the air sacs include handles to facilitate rolling and unrolling of the cover. The cover has a slack portion which allows movement of a part of the cover between a normal configuration and a cavity configuration. A stop member positioned adjacent the edge of the marginal portion of the cover is engageable with weighted members and the weighted members are engageable with an abutment member positioned on the deck of the pool after moving a predetermined distance which locks the cover in position after allowing limited movement of the cover. |
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DETAILED DESCRIPTION The subject invention relates to the combination of a solar heater and a swimming pool cover.
Solar energy collection means having a specific gravity greater than that of water for absorbing solar energy coacts with cover means for retaining heat developed therefrom.
In one subcombination, the solar energy collection means has a specific gravity greater than that of water for heating the water in a swimming pool and control means for controlling the temperature of the water.
In another subcombination, the swimming pool cover assembly comprises cover means made of pliable material for covering a swimming pool, and at least one floatable roller means operatively connected with said cover means and positioned adjacent an edge thereof for rolling and unrolling said cover means between rolled and unrolled positions.
In a still further subcombination, a swimming pool cover assembly comprises cover means made of pliable material for covering a swimming pool, and locking means responsive to stress in said cover means for locking said cover means in position after allowing limited movement of said cover means.
PRIOR ART STATEMENT Solar heating assemblies for use with a swimming pool are shown in U.
S.
Pat.
Nos.
3,072,920 granted Jan.
15, 1963 to J.
I.
Yellott and 3,893,443 granted July 8, 1975 to R.
H.
Smith.
These patents disclose solar heaters which serve as covers and are adapted to float on the surface of the pool water to be covered.
These patents also disclose floating solar energy collection means which allow absorbtion of sunlight through a transparent cover and also include the feature of being adjustable by adding or removing floating mats in order to control the temperature of the water.
None of these assemblies, however, discloses a solar heating assembly which employs solar energy collection means having a specific gravity greater than that of water and which can take the form of a dark-colored mat positioned on the bottom of a swimming pool in order to heat the above water by convection and is rollable in order to control the temperature of the pool water
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