Detecting impurities in gases

• US 2,862,859 A
• Filed: 02/08/1956
• Issued: 12/02/1958
• Est. Priority Date: 02/08/1956
• Status: Expired due to Term

• Current Assignee: Karl Grosskopf
• Original Assignee: Karl Grosskopf
• Inventors: Grosskopf, Karl
• Application Number:
  US03/564,304
• Time in Patent Office: 1,028 Days
• US Class Current: 205/775
• CPC Class Codes: G01N 27/12 of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid , for detecting components in the fluid

Claims

1. A METHOD FOR DETECTING IMPURITIES IN A FLUID BY MEANS OF ELECTRODES AT LEAST ONE OF WHICH HAS A BLOCKING LAYER THEREON AND AN ELECTROLYTE, SAID IMPURITIES BEING CAPABLE OF AT LEAST PARTIALLY DESTROYING THE BLOCKING LAYER IN THE PRESENCE OF THE ELECTROLYTE, WHICH COMPRISES BRINGING SAID IMPURITIES INTO CONTACT WITH THE ELECTRODES AND ELECTROLYTE AND SUPPLYING DIRECT ELECTRIC CURRENT TO SAID ELECTRODES IN A DIRECTION TO BE NORMALLY BLOCKED BY SAID BLOCKING LAYER, WHEREBY AN INCREASE IN SAID CURRENT INDICATES THE PRESENCE OF IMPURITIES IN THE LIQUID.

15. A DEVICE FOR TESTING IMPURITIES IN FLUIDS WHICH COMPRISES AN ELECTRIC VALVE CELL HAVING ELECTRODES AND AN ELECTROLYTE BETWEEN AND IN CONTACT WITH THE ELECTRODES, AT LEAST ONE OF SAID ELECTRODES HAVING A BLOCKING LAYER THEREON CAPABLE OF BEING AT LEAST PARTIALLY DESTROYED BY THE IMPURITIES, PUMP MEANS TO BRING SUCH IMPURITIES INTO CONTACT WITH THE ELECTRODES HAVING THE BLOCKING LAYER THEREON, AN AMMETER, A CIRCUIT INCLUDING SAID ELECTRODES AND SAID INSTRUMENTS, AND MEANS TO SUPPLY DIRECT CURRENT TO SAID CIRCUIT IN A DIRECTION TO BE NORMALLY BLOCKED BY SAID BLOCKING LAYER.