Car wash device

Claim 1

A CAR WASH DISPENSING SYSTEM FOR USE IN DISPENSING A NON-CONCENTRATED DETERGENT SOLUTION, SAID SYSTEM COMPRISING A DISPENSING TANK HAVING AN INLET CONNECTED IN COMMUNICATING RELATION TO A SOURCE OF WATER UNDER PRESSURE AND HAVING AN OUTLET, A DISCHARGE NOZZLE MECHANISM CONNECTED IN COMMUNICATING RELATION WITH SAID OUTLET, PRESSURE PUMP MEANS INTERPOSED IN FLOW CONTROLLING RELATION BETWEEN SAID DISCHARGE NOZZLE MECHANISM AND SAID DISPENSING TANK, A DETERGENT RESERVOIR STRUCTURE CONTAINING A PREDETERMINED AMOUNT OF CONCENTRATED DETERGENT SOLUTION AND HAVING AN INLET CONNECTED IN COMMUNICATING RELATION TO A SOURCE OF WATER UNDER PRESSURE AND HAVING AN OUTLET, SAID OUTLET COMMUNICATING WITH SAID DISPENSING TANK AND BEING SPACED ABOVE THE BOTTOM OF SAID RESERVOIR STRUCTURE WHEREBY WHEN THE AMOUNT OF DETERGENT SOLUTION WITHIN AID RESERVOIR STRUCTURE EXCEEDS A PREDETERMINED VOLUME, THE EXCESS DETERGENT SOLUTION WILL FLOW THROUGH THE OUTLET INTO SAID DISPENSING TANK, ELECTRIC VALVE MECHANISM INTERPOSED IN FLOW CONTROLLING RELATION WITH RESPECT TO SAID INLET OF SAID DETERGENT RESERVOIR STRUCTURE, SAID VALVE MECHANISM WHEN DEENERGIZED PREVENTING THE FLOW OF WATER INTO THE RESERVOIR STRUCTURE AND WHEN ENERGIZED ALLOWING WATER TO FLOW INTO SAID RESERVOIR STRUCTURE, AN ELECTRICAL SENSING MECHANISM PROJECTING INTO SAID DISPENSING TANK AND BEING CONNECTED TO A SOURCE OF ELECTRICAL CURRENT AND ARRANGED IN CIRCUIT CONTROLLING RELATION WITH RESPECT TO SAID ELECTRICAL VALVE MECHANISM, SAID SENSING PROBE MECHANISM BEING OPERABLE WHEN THE DETERGENT SOLUTION WITHIN SAID DISPENSING TANK FALLS BELOW A PREDETERMINED CONCENTRATION TO ENERGIZE SAID ELECTRICAL VALVE MECHANISM AND THEREBY PERMIT WATER TO BE INTRODUCED INTO SAID RESERVOIR STRUCTURE SO AS TO CAUSE THE DETERGENT SOLUTION TO PASS THROUGH THE OUTLET OF THE RESERVOIR STRUCTURE INTO SAID DISPENSING TANK UNTIL THE CONCENTRATION OF DETERGENT SOLUTION WITHIN SAID DISPENSING TANK APPROXIMATES THE PREDETERMINED CONCENTRATION, SAID SENSING PROBE MECHANISM BEING OPERABLE TO DEENERGIZE SAID VALVE MECHANISM WHEN THE CONCENTRATION OF DETERGENT SOLUTION WITHIN SAID DISPENSING TANK SUBSTANTIALLY EQUALS SAID PREDETERMINED CONCENTRATION.