Metering system for electrically conductive flowable materials

Claim 1

A METERING SYSTEM FOR AN ELECTRICALLY CONDUCTIVE FLOWABLE MATERIAL WHICH COMPRISES MEANS FOR CONVEYING SAID MATERIAL TO A CONTAINER, A PLURALITY OF ELECTRICALLY CONDUCTIVE SENSING ELEMENTS POSITIONED AT PREDETERMINED DISTANCES FROM THE BOTTOM OF SAID CONTAINER TO CONTROL THE MAXIMUM LEVEL OF SAID MATERIAL IN SAID CONTAINER AND A PLURALITY OF ELECTRICALLY CONDUCTIVE SENSING ELEMENTS POSITIONED AT PREDETERMINED DISTANCES FROM THE BOTTOM OF SAID CONTAINER TO CONTROL THE MINIMUM LEVEL OF SAID MATERIAL, THE VERTICAL SPACING BETWEEN THE ENDS OF SAID MINIMUM LEVEL SENSING ELEMENTS PROVIDING VOLUME INCREMENTS WITHIN SAID CONTAINER WHICH ARE FRACTIONS OF THE VOLUME INCREMENTS, BETWEEN THE ENDS OF THE MAXIMUM LEVEL SENSING ELEMENTS, CIRCUIT SELECTOR MEANS WHICH PERMIT TH FORMATION OF A CIRCUIT THROUGH ONE OF SAID MAXIMUM LEVEL SENSING ELEMENTS WHEREBY THE ACCUMULATION OF QUANTITIES OF SAID MATERIAL IN SAID CONTAINER TO THE LEVER OF SAID SELECTED MAXIMUM SENSING ELEMENT WILL STOP THE FLOW OF ADDITIONAL QUANTITIES OF MATERIAL INTO SAID CONTAINER, MEANS FOR DISCHARGING SAID ACCUMULATED MATERIAL FROM SAID CONTAINER AND SECOND CIRCUIT SELECTOR MEANS WHICH PERMIT THE FORMATION OF A CIRCUIT THROUGH ONE OF SAID MINIMUM LEVEL SENSING ELEMENTS SO THAT WHEN THE LEVEL OF SAID MATERIAL DROPS BELOW SAID SELECTED MINIMUM SENSING ELEMENT THE DISCHARGE OF MATERIAL WILL CEASE.