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ELECTROCHEMICAL ANALYZER

  • US 3,847,777 A
  • Filed: 05/08/1972
  • Issued: 11/12/1974
  • Est. Priority Date: 05/08/1972
  • Status: Expired due to Term
First Claim
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1. AN ELECTROCHEMICAL ANALYZER COMPRISING:

  • TWO ELECTRODES SPACED APART FROM EACH OTHER, AN ELECTROLYTE IN THE SPACE BETWEEN SAID ELECTRODES, AND A COMPOSITE MEMBRANE STRUCTURE OVER THE SURFACE OF ONE OF SAID ELECTRODES, SAID COMPOSITE STRUCTURE HAVING A SURFACE AREA SUBSTANTIALLY LARGER THAN THE AREA OF SAID SURFACE OF SAID ELECTRODE AND COMPRISING A SELECTIVELY PERMEABLE LAYER SEPARATED FROM SAID ELECTRODE SURFACE BY A THIN LAYER OF SAID ELECTROLYTE, AND A LAYER OF HYDROPHOBIC MATERIAL IN OVERLYING ENGAGEMENT WITH SAID SELECTIVELY PERMEABLE LAYER, SAID LAYER OF HYDROPHOBIC MATERIAL HAVING POROSITY THAT ALLOWS SUBSTANTIALLY UNIMPED GASEOUS FLOW IN BOTH THE LATERAL AND LONGITUDINAL DIRECTIONS.

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