Inlet for chromatographs and the like

Claim 1

IN AN INLET FOR CHROMATOGRAPHS AND THE LIKE: (A) AN ELONGATED BODY HAVING A LONGITUDINALLY EXTENDING PASSAGE THERETHROUGH; (B) A COLUMN FITTING SECURED IN ONE END OF SAID PASSAGE, SAID FITTING HAVING AN AXIAL BORE EXTENDING FORWARDLY FROM THE INNER END AND FROM THE FORWARD END OF WHICH A REDUCED DIAMETER FLUID DISCHARGE BORE EXTENDS; (C) A VAPORIZER TUBE TO INACTIVE MATERIAL, SAID TUBE BEING OF SMALLER OUTSIDE DIAMETER THAN THE INSIDE DIAMETER OF THE PASSAGE THROUGH THE BODY, A FORWARD END PORTION OF SAID VAPORIZER TUBE BEING SNUGLY RECEIVED IN THE AXIAL BORE OF SAID FITTING, THE OUTER END OF SAID VAPORIZER TUBE BEING SPACED REARWARDLY OF THE OUTER END OF THE PASSAGE THROUGH THE BODY AND HAVING NOTCH MEANS THEREIN; (D) A LINER OF A INACTIVE MATERIAL, SAID LINER HAVING A PASSAGE EXTENDING LONGITUDINALLY THEREIN, THERE BEING A WALL AT THE OUTER END OF SAID PASSAGE WITH A RELATIVELY SMALL INSTRUMENT AXIAL OPENING THERETHROUGH, FOR RECEPTION OF THE NEEDLE OF A SAMPLE HANDLING INSTRUMENT, THE OUTSIDE DIAMETER OF THE LINER BEING SUCH AS TO BE SNUGLY RECEIVED IN THE PASSAGE OF THE BODY, THE INSIDE DIAMETER OF SAID LINER BEING GREATER THAN THE OUTSIDE DIAMETER OF THE VAPORIZER TUBE AND FITTING OVER AN OUTER END PORTION OF SAID VAPORIZER TUBE TO PROVIDE AN ANNULAR CHAMBER ABOUT THE VAPORIZER TUBE HAVING FLUID CONNECT WITH THE INTERIOR OF SAIF VAPORIZER TUBE, THERE BEING AN INLET INTO SAID ANNULAR CHAMBER, THE OUTER END OF SAID LINER BEING SPACED INWARDLY OF THE OUTER END OF THE PASSAGE THROUGH THE BODY WITH THE WALL AT THE OUTER END OF SAID LINER RESTING ON THE OUTER END OF THE VAPORIZER TUBE, THE OPENING IN THE END WALL OF THE LINER REGISTERING WITH THE PASSAGE THROUGH THE VAPORIZER TUBE; (E) A SEPTUM IN THE OUTER END PORTION OF THE BODY PASSAGE, SAID SEPTUM ABUTTING THE OUTER SIDE OF THE LINER END WALL; (F) A SPETUM RETAINER SLIDABLE AND REMOVABLY RECEIVED WITHIN THE OUTER END PORTION OF THE BODY PASSAGE. SAID RETAINER HAVING A SMALL AXIAL GUIDE BORE FOR RECEPTION OF A NEEDLE OF A SAMPLE DELIVERING INSTRUMENT, SAID GUIDE BORE BEING ALIGNED WITH THE OPENING IN THE END WALL OF THE LINER; (G) AND RESILIENT MEANS FOR URGING SAID RETAINER AGAINST THE SEPTUM WITH A PREDETERMINED PRESSURE.