Method for infiltration of trace material

Claim 1

THE METHOD OF INTRODUCING AT A SUBSTANTIALLY UNIFORM REGULATED RATE A TRACE MATERIAL INTO A LIQUID SOLVENT COMPRISING, FIRST MIXING FRAGMENTS OF SUCH TRACE MATERIAL IN FINELY DISSEMINATED FORM THROUGHOUT A MASS OF MATRIX MATERIAL SOLUBLE IN SAID LIQUID SOLVENT, NEXT COMPACTING SAID MIXTURE UNDER PRESSURE TO PROVIDE A BLOCK HAVING SUBSTANTIALLY NO VOIDS THEREIN WITH SAID TRACE MATERIAL BEING UNIFORMLY DISPREAD THROUGHOUT THE COMPACTED BLOCK IN DISCONTINUOUS FORM, THEN STANDING SAID BLOCK IN A SUBSTANTIALLY CONSTANT DEPTH FLOWING STREAM OF SAID LIQUID SOLVENT WITH THE TOP PORTION OF SAID BLOCK DISPOSED ABOVE SAID STREAM AND WITH THE BOTTOM OF SAID BLOCK SUBSTANTIALLY INSULATED FROM SAID STREAM, WHEREBY SAID STREAM OF LIQUID SOLVENT FLOWS AGAINST SUBSTANTIALLY ONLY THE SIDE SURFACES OF SAID BLOCK AND DISSOLVES SAID BLOCK AT THE LIQUID CONTACT SIDE SURFACES THEREOF INTO PROGRESSIVELY CHANGING HOUR-GLASS SHAPED FORMS PRESENTING TO THE LIQUID SOLVENT A SUBSTANTIALLY CONSTANT TOTAL LIQUID CONTACT AREA SUBSTANTIALLY THROUGHOUT THE LIFE OF THE BLOCK, WHEREBY SAID TRACE MATERIAL FRAGMENTS BECOME SUCCESSIVELY EXPOSED TO SAID LIQUID SOLVENT AND ARE METERED INTO SOLUTION THEREWITH AT A SUBSTANTIALLY UNIFORM OVERALL RATE.

Claim 2

THE METHOD OF INTRODUCING AT A SUBSTANTIALLY UNIFORM REGULATED RATE A TRACE MATERIAL INTO A LIQUID SOLVENT COMPRISING, FIRST MIXING FRAGMENTS OF SUCH TRACE MATERIAL IN FINELY DISSEMINATED FORM THROUGHOUT A MASS OF MATRIX MATERIAL SOLUBLE IN SAID LIQUID SOLVENT, NEXT COMPACTING SAID MIXTURE UNDER PRESSURE TO PROVIDE A BLOCK HAVING SUBSTANTIALLY NO VOIDS THEREIN WITH SAID TRACE MATERIAL BEING UNIFORMLY DISPREAD THROUGHOUT THE COMPACTED BLOCK IN DISCONTINUOUS FORM, THEN STANDING SAID BLOCK IN A SUBSTANTIALLY CONSTANT DEPTH FLOWING STREAM OF SAID LIQUID SOLVENT WITH THE TOP PORTION OF SAID BLOCK DISPOSED ABOVE SAID STREAM AND WITH THE BOTTOM OF SAID BLOCK SUBSTANTIALLY INSULATED FROM SAID STREAM, WHEREBY SAID STREAM OF LIQUID SOLVENT FLOWS AGAINST SUBSTANTIALLY ONLY THE SIDE SURFACES OF SAID BLOCK AND DISSOLVES SAID BLOCK AT THE LIQUID CONTACT SIDE SURFACES THEREOF INTO PROGRESSIVELY CHANGING HOUR-GLASS SHAPED FORMS PRESENTING TO THE LIQUID SOLVENT A SUBSTANTIALLY CONSTANT TOTAL LIQUID CONTACT AREA SUBSTANTIALLY THROUGHOUT THE LIFE OF THE BLOCK, WHEREBY SAID TRACE MATERIAL FRAGMENTS BECOME SUCCESSIVELY EXPOSED TO SAID LIQUID SOLVENT AND ARE METERED INTO SOLUTION THEREWITH AT A SUBSTANTIALLY UNIFORM OVERALL RATE.