Electrochemical determination of components in gas mixtures

• US 2,939,827 A
• Filed: 02/27/1956
• Issued: 06/07/1960
• Est. Priority Date: 02/27/1956
• Status: Expired due to Term

• Current Assignee: Frank J De Luca, Moses G. Jacobson
• Original Assignee: Frank J De Luca, Moses G. Jacobson
• Inventors: Jacobson, Moses G., DE LUCA FRANK J
• Application Number:
  US03/568,111
• Time in Patent Office: 1,562 Days
• US Class Current: 204/432
• CPC Class Codes: G01N 27/404 Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid , e.g. Clark-type oxygen sensors
• CPC Class Codes: G01N 27/4163 checking the operation of, or calibrating, the measuring apparatus G01N27/3274, G01N27/4175 and G01N33/0006 take precedence

Claims

1. IN A GALVANIC DETECTOR CELL FOR USE IN MEASURING THE CONCENTRATION OF A DEPOLARIZING COMPONENT OF A GASEOUS MIXTURE, THE COMBINATION COMPRISING A POLARIZABLE TUBULAR POROUS ELECTRODE THE WALL OF WHICH IS SUBSTANTIALLY IMPERVIOUS TO THE ELECTROLYTE IN THE CELL BUT PERVIOUS TO THE GASEOUS MIXTURE, THE ELECTRODE BEING CLOSED AT ONE END THAT IS ADAPTED TO BE IMMERSED IN THE ELECTROLYTE AND OPEN AT THE OTHER END, AND A TUBE RECEIVED IN THE OPEN END OF THE ELECTRODE AND EXTENDING SUBSTANTIALLY THE FULL LENGTH OF THE ELECTRODE BORE WITH THE INNER END OF THE TUBE ADJACENT THE CLOSED END OF THE ELECTRODE, THE TUBE HAVING A CROSS SECTIONAL AREA THAT WILL LEAVE ONLY A NARROW PASSAGE BETWEEN THE OUTSIDE OF THE TUBE AND THE WALL OF THE ELECTRODE, THE TUBE AND PASSAGE FORMING A CONTINUOUS CONDUIT FOR INTRODUCING THE GASEOUS MIXTURE INTO THE BORE OF THE ELECTRODE AND FOR WITHDRAWING THE MIXTURE THEREFROM.