Methods and means for indicating contamination of lubricating oil
First Claim
5. APPARATUS FOR TESTING LUBRICATING OIL FOR SOLID AND CHEMICAL CONTAMINATION THEREOF, COMPRISING A FIRST ELECTRODE PAIR OF PREDETERMINED EFFECTIVE COMMON AREA AND HAVING A RELATIVELY WIDE DISTANCE OF SEPARATION THEREBETWEEN WHEN OPERATIVELY POSITIONED, A SECOND ELECTRODE PAIR OF SUBSTANTIALLY THE SAME PREDETERMINED EFFECTIVE COMMON AREA AND HAVING A RELATIVELY NARROW DISTANCE OF SEPARATION THEREBETWEEN WHEN OPERATIVELY POSITIONED, SAID ELECTRODE PAIRS BEING ADAPTED FOR INSERTION OF A LUBRICATING OIL TEST SAMPLE BETWEEN THE ELECTRODES THEREOF, AND ELECTRICAL CONDUCTIVITY TEST CIRCUIT MEANS INCLUDING A SOURCE OF ELECTRIC POTENTIAL INCLUDING VOLTAGE DIVIDER MEANS HAVING A COMMON REFERENCE POTENTIAL POINT CONNECTED TO ONE SIDE OF SAID ELECTRODE PAIRS, SAID VOLTAGE DIVIDER MEANS FURTHER HAVING HIGH AND RELATIVELY LOW VOLTAGE POINTS CONNECTED TO THE OPPOSITE SIDES OF SAID FIRST AND SAID SECOND ELECTRODE PAIRS, RESPECTIVELY, ELECTRIC CURRENT INDICATOR MEANS INTERPOSED IN THE CIRCUIT CONNECTION BETWEEN SAID COMMON REFERENCE POTENTIAL POINT AND SAID FIRST SIDE OF THE ELECTRODE PAIRS, AND MEANS OPERABLE TO SELECT THE INDIVIDUAL ELECTRODE PAIRS FOR TESTING CONDUCTIVITY OF SUCH AN OIL SAMPLE BETWEEN EACH PAIR SEPARATELY, AS INDICATED BY SAID ELECTRIC CURRENT INDICATING MEANS.
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5 Claims
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5. APPARATUS FOR TESTING LUBRICATING OIL FOR SOLID AND CHEMICAL CONTAMINATION THEREOF, COMPRISING A FIRST ELECTRODE PAIR OF PREDETERMINED EFFECTIVE COMMON AREA AND HAVING A RELATIVELY WIDE DISTANCE OF SEPARATION THEREBETWEEN WHEN OPERATIVELY POSITIONED, A SECOND ELECTRODE PAIR OF SUBSTANTIALLY THE SAME PREDETERMINED EFFECTIVE COMMON AREA AND HAVING A RELATIVELY NARROW DISTANCE OF SEPARATION THEREBETWEEN WHEN OPERATIVELY POSITIONED, SAID ELECTRODE PAIRS BEING ADAPTED FOR INSERTION OF A LUBRICATING OIL TEST SAMPLE BETWEEN THE ELECTRODES THEREOF, AND ELECTRICAL CONDUCTIVITY TEST CIRCUIT MEANS INCLUDING A SOURCE OF ELECTRIC POTENTIAL INCLUDING VOLTAGE DIVIDER MEANS HAVING A COMMON REFERENCE POTENTIAL POINT CONNECTED TO ONE SIDE OF SAID ELECTRODE PAIRS, SAID VOLTAGE DIVIDER MEANS FURTHER HAVING HIGH AND RELATIVELY LOW VOLTAGE POINTS CONNECTED TO THE OPPOSITE SIDES OF SAID FIRST AND SAID SECOND ELECTRODE PAIRS, RESPECTIVELY, ELECTRIC CURRENT INDICATOR MEANS INTERPOSED IN THE CIRCUIT CONNECTION BETWEEN SAID COMMON REFERENCE POTENTIAL POINT AND SAID FIRST SIDE OF THE ELECTRODE PAIRS, AND MEANS OPERABLE TO SELECT THE INDIVIDUAL ELECTRODE PAIRS FOR TESTING CONDUCTIVITY OF SUCH AN OIL SAMPLE BETWEEN EACH PAIR SEPARATELY, AS INDICATED BY SAID ELECTRIC CURRENT INDICATING MEANS.
Specification
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Current AssigneeWayne E. Quinton
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Original AssigneeWayne E. Quinton
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InventorsQuinton, Wayne E.
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Application NumberUS03/265,154Time in Patent Office1,634 DaysField of SearchUS Class Current324/698CPC Class CodesG01N 27/06 of a liquid involving elect...
