Method for the insertion of sampling tubes used to determine the dispersion of a fumigant in grain and apparatus therefor

Claim 1

A METHOD FOR DETERMINING THE DISPERSION OF AFUMIGANT WITHIN A BODY OF A VAPOR-PERMEABLE FOOD MATERIAL WHICH INCLUDED THE SUCCESSIVE STEPS OF POSITIONING A PIPE AROUND OF FLEXIBLE TUBE THE END OF WHICH IS CONNECTED TO A SUCTION-HEAD THROUGH WHICH AIR CAN BE DRAWN INTO THE SAID FLEXIBLE HEAD, FORCING THE SAID SUCTION-HEAD DOWNWARDLY INTO THE BODY OF FOOD MATERIAL TO A PREDETERMINED DEPTH BY APPLYING FORCE TO ITTHROUGH THE SAID PIPE, WITHDRAWING THE SAID PIPE FROM AROUND THE FLEXIBLE TUBE WHILE LEAVING THE SAID SUCTION-HEAD AT THE PREDETERMINED LOCATION WITHIN THE BODY OF THE FOOD MATERIAL AND STILL CONNECATED TO THE FLEXIBLE TUBE NOW EXTENDING UPWARDLY THROUGH THE FOOD MATERIAL AND OUT OF ITS SURFACE, AND AFTER A FUMIGANT GAS HAS BEEN RELEASED WITHIN THE SAID BODY OF FOOD MATERIAL, SUCKING AIR THROUGH THE SAID SUCTION-HEAD AND THE SAID FLEXIBLE TUBE AND MEASURING THE AMOUNT OF THE FUMIGANT GAS CONTAINED IN THE AIR, AND WITHDRAWING THE SAID FLEXIBLE TUBE AND THE SUCTIONHEAD FROM THE SAID BODY OF FOOD MATERIAL.

Claim 2

A METHOD FOR DETERMINING THE DISPERSION OF AFUMIGANT WITHIN A BODY OF A VAPOR-PERMEABLE FOOD MATERIAL WHICH INCLUDED THE SUCCESSIVE STEPS OF POSITIONING A PIPE AROUND OF FLEXIBLE TUBE THE END OF WHICH IS CONNECTED TO A SUCTION-HEAD THROUGH WHICH AIR CAN BE DRAWN INTO THE SAID FLEXIBLE HEAD, FORCING THE SAID SUCTION-HEAD DOWNWARDLY INTO THE BODY OF FOOD MATERIAL TO A PREDETERMINED DEPTH BY APPLYING FORCE TO ITTHROUGH THE SAID PIPE, WITHDRAWING THE SAID PIPE FROM AROUND THE FLEXIBLE TUBE WHILE LEAVING THE SAID SUCTION-HEAD AT THE PREDETERMINED LOCATION WITHIN THE BODY OF THE FOOD MATERIAL AND STILL CONNECATED TO THE FLEXIBLE TUBE NOW EXTENDING UPWARDLY THROUGH THE FOOD MATERIAL AND OUT OF ITS SURFACE, AND AFTER A FUMIGANT GAS HAS BEEN RELEASED WITHIN THE SAID BODY OF FOOD MATERIAL, SUCKING AIR THROUGH THE SAID SUCTION-HEAD AND THE SAID FLEXIBLE TUBE AND MEASURING THE AMOUNT OF THE FUMIGANT GAS CONTAINED IN THE AIR, AND WITHDRAWING THE SAID FLEXIBLE TUBE AND THE SUCTIONHEAD FROM THE SAID BODY OF FOOD MATERIAL.

Claim 3

A DEVICE FOR DETERMINING THE COMPLETENESS OF THE FUMIGATION OF A BODY OF STORED FOOD MATERIAL WHICH COMPRISES A FLEXIBLE TUBE AND A SUCTION-HEAD WHICH IS GENERALLY CONICAL IN SHAPE AND IS COMPOSED OF A CONE SECTION AND A BASE SECTION; THE SAID CONE SECTION BEING GENERALLY CONICAL IN SHAPE AND HAVING AN INTERNAL CHAMBER, A PLURALITY OF PERFORATIONS EXTENDING FROM THE SAID CHAMBER TO ITS CONICAL SURFACE, AN EXTERNALLY THREADED CYLINDRICAL SECTION TERMINATED BY A TRAUNCATED CONICAL SECTION AND A PERFORATION EXTENDING THROUGH THE SAID CYLINDRICAL SECTION AND INTO THE SAID CHAMBER; AND THE SAID BASE SECTION HAVING GENERALLY THE SHAPE OF A TRUNCATED CONE WITH ITS CONICAL SURFACE CONNECTED TO ITS BASE BY A ROUNDED SHOULDER, A TAPERED GUIDE SECTION CENTERED ON THE BASE WITH A FLAT ANNULAR BEARING SURFACE AROUND THE SAID GUIDE SURFACE, A CENTERED CYLINDRICAL PERFORATION EXTENDING THROUGH THE SAID GUIDE SECTION AND THE REMAINDER OF THE SECTION, WHICH CONSISTS OF AN INTERNALLY THREADED INNER SECTION, THE THREADS OF WHICH ENGAGE THE THREADS OF THE EXTERNAL THREADS OF THE CONE SECTION, A SMALLER OUTER SECTION IN WHICH THE END SECTION OF THE FLEXIBLE TUBE IS SITIONED, AND AN INTERNALLY CONICAL SURFACE CONNECTING THE TWO CYLINDRICAL SECTIONS WHICH COOPERATES WITH THE TRUNCATED CONICAL SECTION IN CLAMPING THE END OF THE FLEXIBLE TUBE STRETCHED OVER THE TRUNCATED CONICAL SECTION WITH ITS PASSAGEWAY COMMUNICATING WITH THE PERFORATION EXTENDING THROUGH THE EXTERNALLY THREADED PORTION OF THE CONE SECTION.

Claim 4

A DEVICE FOR DETERMINING THE COMPLETENESS OF THE FUMIGATION OF A BODY OF STORED FOOD MATERIAL WHICH COMPRISES A FLEXIBLE TUBE AND A SUCTION-HEAD WHICH IS GENERALLY CONICAL IN SHAPE AND IS COMPOSED OF A CONE SECTION AND A BASE SECTION; THE SAID CONE SECTION BEING GENERALLY CONICAL IN SHAPE AND HAVING AN INTERNAL CHAMBER, A PLURALITY OF PERFORATIONS EXTENDING FROM THE SAID CHAMBER TO ITS CONICAL SURFACE, AN EXTERNALLY THREADED CYLINDRICAL SECTION TERMINATED BY A TRAUNCATED CONICAL SECTION AND A PERFORATION EXTENDING THROUGH THE SAID CYLINDRICAL SECTION AND INTO THE SAID CHAMBER; AND THE SAID BASE SECTION HAVING GENERALLY THE SHAPE OF A TRUNCATED CONE WITH ITS CONICAL SURFACE CONNECTED TO ITS BASE BY A ROUNDED SHOULDER, A TAPERED GUIDE SECTION CENTERED ON THE BASE WITH A FLAT ANNULAR BEARING SURFACE AROUND THE SAID GUIDE SURFACE, A CENTERED CYLINDRICAL PERFORATION EXTENDING THROUGH THE SAID GUIDE SECTION AND THE REMAINDER OF THE SECTION, WHICH CONSISTS OF AN INTERNALLY THREADED INNER SECTION, THE THREADS OF WHICH ENGAGE THE THREADS OF THE EXTERNAL THREADS OF THE CONE SECTION, A SMALLER OUTER SECTION IN WHICH THE END SECTION OF THE FLEXIBLE TUBE IS SITIONED, AND AN INTERNALLY CONICAL SURFACE CONNECTING THE TWO CYLINDRICAL SECTIONS WHICH COOPERATES WITH THE TRUNCATED CONICAL SECTION IN CLAMPING THE END OF THE FLEXIBLE TUBE STRETCHED OVER THE TRUNCATED CONICAL SECTION WITH ITS PASSAGEWAY COMMUNICATING WITH THE PERFORATION EXTENDING THROUGH THE EXTERNALLY THREADED PORTION OF THE CONE SECTION.