Split flow gas analysis detector

Claim 1

A GAS ANALYSIS DETECTOR COMPRISING AN ELONGATE GAS DETECTION PASSAGE, AN ELECTRICAL RESISTANCE WIRE ESTABLISHED LENGTHWISE AND CONCENTRIC WITH SAID PASSAGE, END MOUNTINGS FOR SAID WIRE AT THE ENDS OF SAID PASSAGE, A GAS ENTRANCE PASSAGE IN THE LENGTHWISE CENTRAL PORTION OF SAID DETECTION PASSAGE AND A GAS EXIT PASAGE ADJACENT EACH END OF SAID DETECTION PASSAGE FOR ESTABLISHING UNIDIRECTIONAL FLOW IN EACH OF TWO OPPOSITE DIRECTIONS ALONG SAID WIRE, SAID GAS EXIT PASSAGES BEING LOCATED LENGTHWISE INWARDLY FROM SAID WIRE END MOUNTINGS SUFFICIENTLY TO AVOID MOST OF THE TEMPERATURE LOSS EFFECTS DUE TO CONDUCTION THROUGH SAID WIRE END MOUNTINGS, AND SAID GAS PASSAGES EACH ESTABLISHING GAS FLOW ALONG SAID WIRE FROM CENTER ENTRANCE TO END EXIT AND TOGETHER COMPRISING A GAS PASSAGE SYSTEM WITH MINIMUM EFFECTIVE DIFFUSION VOLUME.