Leak-proof packaging infusion unit

Claim 1

A COMBINATION PACKAGING AND INFUSION UNIT COMPRISING: A CYLINDRICAL PACKAGING SHEATH ELEMENT HAVING AN IMPERVIOUS SIDE WALL AND AN IMPERVIOUS WALL CLOSING ONE END THEREOF IN INTEGRAL RELATION TO SAID SIDE WALL, THE OPPOSITE END OF SAID SHEATH ELEMENT BEING OPEN; REMOVABLE CLOSURE MEANS FOR THE OPEN END OF THE SHEATH ELEMENT; A CYLINDRICAL PERFORATED INFUSION CHARGE HOLDING ELEMENT DIMENSIONED TO FIT TELESCOPICALLY SLIDABLY IN SAID SHEATH ELEMENT AND HAVING ITS INNER END OPEN AND ITS OUTER END CLOSED, SAID INFUSION CHARGE HOLDING ELEMENT BEING ADAPTED TO BE COMPLETELY WITHDRAWN INTO THE INTERIOR OF SAID SHEATH ELEMENT IN STORED POSITION AND TO PROTRUDE FROM THE OPEN END THEREOF IN INFUSING POSITION AND STOP MEANS PROVIDED ON THE INNER END OF THE INFUSION CHARGE HOLDING ELEMENT AND ON THE OUTER END OF THE SHEATH ELEMENT TO CHECK PROTRUSION OF SAID INFUSION CHARGE HOLDING ELEMENT, SAID STOP MEANS INCLUDING AN INTURNED STOP MEMBER ON THE SHEATH ELEMENT AND AN OUTTURNED STOP MEMBER ON THE INFUSION CHARGE HOLDING ELEMENT, ONE OF THE STOP MEMBERS BEING AN ANNULAR LEDGE HAVING AT LEAST ONE AXIAL SLOT THEREIN AND THE OTHER STOP MEMBER BEING AT LEAST ONE LUG ADAPTED TO BE MOVED THROUGH SAID LEDGE SLOT WHEN ROTATED INTO AXIAL REGISTRATION THEREWITH, THE SAID SLOT AND LUG BEING DIMENSIONED FOR A FORCED FIT BETWEEN THE CORRESPONDING SIDE EDGES THEREOF.