Floatable cover capable of partially or fully covering swimming pools

A floatable cover capable of partially or fully covering swimming pools or the like comprising:

• a. a cover sheet of non-porous flexible sheet material wich may assume an arched configuration over the pool and having a periphery having the general shape of the pool;
• b. an air tube in the approximate shape of the perimeter of the pool and dependently attached at the cover sheet perimeter to the under surface of the cover sheet to abut the interior perimeter of the pool;
• c. an apron attached to the perimeter of the cover sheet to extend beyond the perimeter of the pool;
• d. means for securing the apron to the pool structure to prevent disturbance of the cover as by winds;
• e. an air feeder tube connected to the air tube to permit the introduction of air into the air tube;
• f. an air feeder tube connected to the cover sheet to permit the introduction of air underneath the cover sheet;
• g. means for supplying air;
• and
• h. means, connecting the air supply means to the air feeder tubes, for automatically controlling the supply of air to the air tube and beneath the cover sheet, wherein the air supply control means comprises a multichamber enclosure having a first chamber for receiving air from the air supply means;
• a second chamber, connected by an opening to the receiving chamber, to which the air feeder tube is connected;
• a third chamber, connected by a smaller opening to the receiving chamber, to which the cover sheet feeder tube is connected;
• a pair of inwardly swing doors for covering the opening to the receiving chamber each in the second and third chambers respectively;
• a pivot arm connected to the enclosure, and a means for connecting each door to opposite ends of the pivot arm so that second chamber door is caused to open more fully upon starting the blowers to inflate the air tube and draw the cover automatically over the pool, then later as the air tube becomes filled and the air flow drops causing the door in the third chamber to open more fully to raise the cover sheet to its arched shape.

A floatable cover capable of partially or fully covering a swimming pool of the type having a segregated portion such as a whirlpool chamber, comprising:

• a. a main cover sheet of non-porous flexible material over the main portion of the pool, the main cover sheet capable of assuming an arched configuration over the pool and having a periphery the general shape of the main portion of the pool;
• b. an air tube in the approximate shape of the perimeter of the main portion of the pool to abut the interior perimeter of the main portion of the pool and which is dependently attached at the main cover sheet perimeter to the under surface of the main cover sheet;
• c. means for filling the air tube with air;
• d. means for introducing air beneath the main cover sheet;
• e. an auxiliary cover sheet of non-porous flexible material over the segregated portion attached to and forming an extension of the main cover sheet;
• f. a flexible non-porous sheet material attached to the under surface of the auxiliary cover sheet defining an air enclosure beneath the auxiliary cover which contacts the perimeter of the segregated portion of the pool and supports the auxiliary cover sheet;
• and
• g. a tube connecting the main cover with the air enclosure beneath the auxiliary cover so that when the main cover is inflated the auxiliary cover will also be inflated to form a complete covering for the pool having a separate portion which may be moved to expose the segregated portion alone.