Swimming pool apparatus

Claim 1

A SWIMMING POOL FILTER-HEATER COMPRISING A GENERALLY CYLINDRICAL SHELL HAVING A DISHED HEAD, A DISHED BOTTOM, AND A RISER MOUNTED ON A CUT-OUT ON SAID HEAD AND EXTENDING UPWARD THEREFROM, SAID RISER BEING PROVIDED WITH AN INLET PROXIMATE THE TOP THEREOF; A GENERALLY CYLINDRICAL COMBUSTION CHAMBER HAVING A DISHED HEAD INCLUDING A CHIMNEY CENTRALLY MOUNTED ON A CUT-OUT IN SAID HEAD AND EXTENDING UPWARD THEREFROM; MEANS FOR ADMITTING COMBUSTION AIR TO SAID CHAMBER; SAID SHELL BEING COAXIALLY MOUNTED ON AND SUPPORTED BY SAID CHAMBER SO THAT SAID CHIMNEY IS ENCIRCLED BY SAID RISER AND THE DISHED HEAD OF SAID SHELL IS LONGITUDINALLY SPACED APART FROM THE DISHED HEAD OF SAID CHAMBER; A FILTER SECTION DEFINED BY THE ANNULUS BETWEEN THE EXTERIOR OF SAID CHAMBER AND THE INTERIOR OF SAID SHELL CONTAINING A SILICEOUS FILTER MEDIUM; A RING SHAPED COLLECTOR MOUNTED IN THE BOTTOM OF SAID FILTER SECTION AND EMBEDDED IN SAID FILTER MEDIUM, SAID COLLECTOR BEING CIRCULAR IN CROSS-SECTION AND INCLUDING AN INNER AND OUTER LAYER OF FABRIC SPACED APART AND REINFORCED BY A METAL SPIDER; A HEAT EXCHANGER REMOVABLY MOUNTED WITHIN SAID COMBUSTION CHAMBER INCLUDING A COIL PORTION MOUNTED ABOUT THE LONGITUDINAL AXIS OF SAID CHAMBER AND A VERTICALLY EXTENDING CONTINUATION THEREOF WITHIN SAID CHIMNEY; CONDUIT MEANS CONNECTING THE INLET OF SAID HEAT EXCHANGER AND THE INTERIOR OF SAID COLLECTOR THROUGH THE WALL OF SAID COMBUSTION CHAMBER; OUTLET WATER CONDUIT MEANS CONNECTED TO SAID HEAT EXCHANGER PENETRATING SAID CHIMNEY AND THE EXTERIOR OF SAID RISER; MEANS FOR FEEDING SWIMMING POOL WATER TO SAID RISER INLET COMPRISING A PUMP MOUNTED ON SAID SHELL, THE DISCHARGE OF WHICH IS CONNECTED TO SAID RISER INLET; FUEL BURNERS MOUNTED IN SAID COMBUSTION CHAMBER BENEATH SAID HEAT EXCHANGER; PILOT MEANS OPERATIVELY ASSOCIATED WITH SAID BURNERS; A THERMOSTATIC FUEL CONTROLLER INCLUDING A WATER TEMPERATURE SENSOR TO ACTIVATE FUEL VALVES WHICH INDEPENDENTLY CONTROL BURNER FUEL AND PILOT FUEL, MANUAL ON-OFF MEANS, AND MEANS FOR SHUTTING FUEL FLOW UPON FLAME FAILURE; SAID OUTLET WATER CONDUIT MEANS BEING ADAPTED TO BE CONNECTED TO SAID TEMPERATURE SENSOR PORTION OF SAID CONTROLLER AND THENCE TO THE SWIMMING POOL; FUEL LINES INDEPENDENTLY CONNECTING SAID BURNERS AND SAID PILOTS TO SAID CONTROLLER; SAID CONTROLLER CUTTING OFF FUEL SUPPLY TO SAID BURNERS UPON RISE OF WATER TEMPERATURE IN SAID OUTLET WATER CONDUIT ABOVE A PREDETERMINED POINT; MEANS FOR PASSING A CONTROLLED VOLUME OF AIR THROUGH SAID COMBUSTION CHAMBER AND MEANS FOR RETARDING THE DISCHARGE OF RESULTANT COMBUSTION PRODUCTS THROUGH SAID CHIMNEY.