Apparatus for automatically introducing chemical concentrates into swimming pools

Claim 1

IN APPARATUS FOR AUTOMATICALLY DISPENSING DISCRETE AMOUNTS OF CHEMICAL CONCENTRATES INTO A SWIMMING POOL FILTER CIRCULATORY SYSTEM INCLUDING A SERIES-CONNECTED WATER PUMP AND FILTER IN THAT ORDER ALONG THE PATH OF WATER FLOW, THE COMBINATION COMPRISING, FIRST AND SECOND CHEMICAL CONCENTRATE ADDING UNITS, A FIRST VERTICAL CONDUIT MEMBER COMMUNICATING WITH THE INPUT CONDUIT LEADING TO THE WATER PUMP, A SECOND VERTICAL CONDUIT MEMBER COMMUNICATING WITH THE OUTPUT CONDUIT LEADING FROM THE FILTER, SAID FIRST CHEMICAL CONCENTRATE ADDING UNIT BEING FITTED OVER SAID FIRST VERTICAL CONDUIT MEMBER FOR DISCHARGING CHEMICAL THERETHROUGH AND INTO SAID FILTER CIRCULATORY SYSTEM, SAID SECOND CHEMICAL CONCENTRATE ADDING UNIT BEING FITTED OVER SAID SECOND CONDUIT MEMBER FOR DISCHARGING CHEMICAL THERETHROUGH AND INTO SAID FILTER CIRCULATORY SYSTEM, SAID CHEMICAL CONCENTRATE ADDING UNITS EACH COMPRISING PRESSURE-ACTUATED MECHANISM FOR DISPENSING DISCRETE AMOUNTS OF CHEMICAL INTO THEIR RESPECTIVE VERTICAL CONDUIT MEMBERS, AND PRESSURE SUPPLY CONDUIT MEANS COMMUNICATING BETWEEN THE OUTPUT SIDE OF THE WATER PUMP AND SAID DISPENSING MECHANISM FOR SUPPLYING WATER UNDER PRESSURE, UPON OPERATION OF THE PUMP, FOR ACTUATING SAID DISPENSING MECHANISM.