Apparatus for the continuous analysis of contaminants in gases

• US 2,751,281 A
• Filed: 02/19/1953
• Issued: 06/19/1956
• Est. Priority Date: 02/19/1953
• Status: Expired due to Term

• Current Assignee: Gunther Cohn Johan
• Original Assignee: Gunther Cohn Johan
• Inventors: GUNTHER COHN JOHAN
• Application Number:
  US03/337,858
• Time in Patent Office: 1,216 Days
• US Class Current: 422/51
• CPC Class Codes: G01N 25/32 using thermoelectric elements

Claims

1. A MEASURING APPARATUS FOR THE CONTINUOUS DETECTION AND ASSAY OF GASEOUS MEDIA CONTAINING LOW CONCENTRATIONS OF CONTAMINANTS IN THE RANGE OF 0.0001% TO 0.001%, WHEREIN A GAS TRAIN CONDUCTS THE GASEOUS MEDIUM THROUGH A PURIFIER CHAMBER AND A DRYER CHAMBER AND THENCE TO A CATALYST REACTION CHAMBER CONTAINING THERMAL RESPONSIVE TEMPERATURE MEASURING MEANS TO MEASURE THE TEMPERATURE INCREMENT DUE TO THE HEAT DEVELOPED BY THE REACTION IN SAID REACTION CHAMBER, AND COMPRISING A THERMOPILE HAVING AT LEAST A FIRST AND A SECOND TERMINAL LEAD, AND INDICATING RECORDER HAVING AT LEAST A FIRST AND A SECOND TERMINAL LEAD, SAID THERMAL RESPONSIVE TERMPERATURE MEASURING MEANS EXHIBITING THE CHARACTERISTIC FO GENERATING A SMALL E.M.F., AND INCLUDING THEREWITH BACK E.M.F. COMPENSATING MEANS TO SUPPLY A COMPENSATING D. C. POTENTIAL