Analyzer for determining hydrogen content of gas

Claim 1

GAS ANALYZING APPARATUS OF THE CHARACTER DESCRIBED COMPRISING: (A) A BODY DEFINING A CHAMBER HAVING AN INLET AND AN OUTLET FOR A GAS TO BE ANALYZED, (B) CONDUIT MEANS FROM A SOURCE OF GAS TO SAID INLET AND INCLUDING A PRESSURE REGULATING VALVE CONNECTED THEREIN BETWEEN SAID SOURCE OF SAID GAS AND SAID INLET, (C) A FLOW METER CONNECTED IN SAID CONDUIT MEANS TO INDICATE THE RATE OF GAS FLOW THERETHROUGH, (D) A TUBULAR PALLADIUM-SILVER ELEMENT DISPOSED IN SAID CHAMBER, ONE END OF SAID ELEMENT BEING CLOSED, (E) PRESSURE INDICATING MEANS COMMUNICATING WITH THE INTERIOR OF SAID ELEMENT THROUGH THE OTHER END THEREOF, (F) MEANS ELECTRICALLY INSULATING AT LEAST ONE END OF SAID ELEMENT FROM SAID CHAMBER DEFINING BODY, AND (G) MEANS CONNECTED TO THE OPPOSITE END OF SAID ELEMENT FOR CAUSING AN ELECTRIC CURRENT TO FLOW THERETHROUGH, WHEREBY SAID ELEMENT IS HEATED IN ACCORDANCE WITH ITS ELECTRICAL RESISTANCE, SAID CONDUIT MEANS INCLUDING AN APPRECIABLE LENGTH OF TUBING IN SAID CHAMBER SUBJECTED TO THE HEAT OF SAID ELEMENT FOR PREHEATING GAS DISCHARGED THEREFROM INTO SAID CHAMBER.