Fluid control system for analyzers

Claim 1

IN AN ANALYZER COMPRISING A COLUMN ADAPTED TO CONTAIN A MATERIAL THAT SELECTIVELY RETARDS PASSAGE THERETHROUGH OF INDIVIDUAL CONSTITUENTS OF FLUID MIXTURES TO BE ANALYZED, A SOURCE OF CARRIER GAS, A FLUID SAMPLE SOURCE, AND MEANS COMMUNICATING WITH THE OUTLET OF SAID COLUMN TO DETECT CHANGES IN COMPOSITION OF THE EFFLUENT FROM THE COLUMN; A SYSTEM TO INTRODUCE CARRIER GAS AND SAMPLE INTO THE COLUMN COMPRISING: FIRST AND SECOND MEMBERS, EACH HAVING A FLUID INLET PASSAGE WHICH JOINS FIRST AND SECOND DIVERGING OUTLET PASSAGES, AND FIRST AND SECOND CONTROL PASSAGES WHICH COMMUNICATE WITH THE JUNCTION OF THE INLET AND OUTLET PASSAGES IN DIRECTIONS SO THAT THE INTRODUCTION OF FLUID INTO SAID FIRST CONTROL PASSAGE DIRECTS FLUID FROM SAID INLET PASSAGE TO SAID SECOND OUTLET PASSAGE AND THE INTRODUCTION OF FLUID INTO SAID SECOND CONTROL PASSAGE DIRECTS FLUID FROM SAID INLET PASSAGE TO SAID FIRST OUTLET PASSAGE; FIRST CONDUIT MEANS COMMUNICATING BETWEEN SAID CARRIER GAS SOURCE AND THE INLET PASSAGE OF SAID FIRST MEMBER; SECOND CONDUIT MEANS COMMUNICATING BETWEEN SAID SAMPLE SOURCE AND THE INLET PASSAGE OF SAID SECOND MEMBER; THIRD CONDUIT MEANS CONNECTING THE SECOND OUTLET PASSAGE OF SAID FIRST MEMBER AND THE FIRST OUTLET PASSAGE OF SAID SECOND MEMBER WITH THE INLET OF SAID COLUMN; FOURTH CONDUIT MEANS COMMUNICATING WITH THE SECOND CONTROL PASSAGE OF SAID FIRST MEMBER AND THE SECOND CONTROL PASSAGE OF SAID SECOND MEMBER TO INTRODUCE FLUID SIMULTANEOUSLY THEREIN; FIFTH CONDUIT MEANS COMMUNICATING WITH THE FIRST CONTROL PASSAGE OF SAID FIRST MEMBER AND THE FIRST CONTROL PASSAGE OF SAID SECOND MEMBER TO INTRODUCE FLUID SIMULTANEOUSLY THEREIN; SIXTH CONDUIT MEANS TO INTRODUCE A FLUID, A FIRST VALVE CONNECTING SAID SIXTH CONDUIT MEANS TO SAID FOURTH CONDUIT MEANS, A SECOND VALVE CONNECTING SAID SIXTH CONDUIT MEANS TO SAID FIFTH CONDUIT MEANS, AND CONTROL MEANS TO OPEN AND CLOSE SAID FIRST AND SECOND VALVES SELECTIVELY.