US3069332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simplification in method of measuring corrision of electronic conductors by non-gaseous ionic conductors
Assignee: Individual
•
Filing: 1959-10-22
•
Granted: 1962-12-18
•
Expires: 1979-10-22
Abstract
No abstract record available.
Inventors
- 👤 Robert G Seyl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:11
CPC Classifications
G; G01; G01N; G01N17/00; G01N17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
THE METHOD OF MEASURING A PLURALITY OF INDIVIDUAL VALUES OF THE CORROSION CURRENT EXISTING AT DIFFERENT TIMES WITHIN AN INTERRFACE IN A CORROSION CELL TO THEREBY OBTAIN AN INDICATION OF THE DIFFERENT CORROSION RATE EXISTING AT EACH PARTICULAR TIME, INCLUDING THE STEPS OF ESTABLISHING WITHIN A NON-GASEOUS IONIC CONDUCTOR TWO DUPLICATED ELECTRODES FORMING INTERFACES OF SUBSTANTIALLY EQUAL AREA, APPLYING A D.C. VOLTAGE EP, BETWEEN THE ELECTRONIC CONDUCTORS OF SAID INTERFACES OF VALUE SELECTED FROM WITHIN THE RANGE FROM SLIGHTLY ABOVE ZERO TO 0.040 VOLT FOR EACH DIFFERENT MEASUREMENT OF THE CORROSION CURRENT AT EACH DIFFERENT TIME, CONTINUING THE APPLICATION OF SAID VOLTAGE FOR THAT PERIOD OF TIME REQUIRED TO INITIALLY PRODUCE THE SAME SELECTED SMALL RATE OF CHANGE IN VALUE OF CURRENT FOR EACH DIFFERENT MEASUREMENT OF THE CORROSION CURRENT, AND MEASURING THE CURRENT IP AT THE END OF SAID PERIOD OF TIME FOR EACH PARTICULAR MEASUREMENT OF THE CORROSION CURRENT, AND IMMEDIATELY THEREAFTER DISCONTINUING THE VOLTAGE FOR THAT PARTICULAR MEASUREMENT, WHEREBY IN EACH PARTICUL MEASUREMENT THE CORROSION CURRENT IC AT THE FREE ELECTRODE POTENTIAL, BECOMES MEASURED FROM THE RELATIONSHIP, IC=(ED/EP) (IP), WHERE ED IS A CONSTANT VALUE OF VOLTAGE SELECTED FROM WITHIN THE RANGE OF 0.029 TO 0.035 VOLT.
Claim 2
Independent Claim
200 words
THE METHOD OF MEASURING A PLURALITY OF INDIVIDUAL VALUES OF THE CORROSION CURRENT EXISTING AT DIFFERENT TIMES WITHIN AN INTERRFACE IN A CORROSION CELL TO THEREBY OBTAIN AN INDICATION OF THE DIFFERENT CORROSION RATE EXISTING AT EACH PARTICULAR TIME, INCLUDING THE STEPS OF ESTABLISHING WITHIN A NON-GASEOUS IONIC CONDUCTOR TWO DUPLICATED ELECTRODES FORMING INTERFACES OF SUBSTANTIALLY EQUAL AREA, APPLYING A D.C. VOLTAGE EP, BETWEEN THE ELECTRONIC CONDUCTORS OF SAID INTERFACES OF VALUE SELECTED FROM WITHIN THE RANGE FROM SLIGHTLY ABOVE ZERO TO 0.040 VOLT FOR EACH DIFFERENT MEASUREMENT OF THE CORROSION CURRENT AT EACH DIFFERENT TIME, CONTINUING THE APPLICATION OF SAID VOLTAGE FOR THAT PERIOD OF TIME REQUIRED TO INITIALLY PRODUCE THE SAME SELECTED SMALL RATE OF CHANGE IN VALUE OF CURRENT FOR EACH DIFFERENT MEASUREMENT OF THE CORROSION CURRENT, AND MEASURING THE CURRENT IP AT THE END OF SAID PERIOD OF TIME FOR EACH PARTICULAR MEASUREMENT OF THE CORROSION CURRENT, AND IMMEDIATELY THEREAFTER DISCONTINUING THE VOLTAGE FOR THAT PARTICULAR MEASUREMENT, WHEREBY IN EACH PARTICUL MEASUREMENT THE CORROSION CURRENT IC AT THE FREE ELECTRODE POTENTIAL, BECOMES MEASURED FROM THE RELATIONSHIP, IC=(ED/EP) (IP), WHERE ED IS A CONSTANT VALUE OF VOLTAGE SELECTED FROM WITHIN THE RANGE OF 0.029 TO 0.035 VOLT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |