US3361660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reference electrode mounting assembly
Assignee: Chevron USA Inc
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Filing: 1964-06-16
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Granted: 1968-01-02
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Expires: 1984-06-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Chittum
- 👤 Hank E Englander
- 👤 Frederic W Schremp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:00
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/0441; Y10T137/0486
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
POTENTIAL-DETECTING APPARATUS FOR DETERMINING THE POTENTIAL EXISTING BETWEEN THE INNER SURFACE OF A TANK AND AN ELECTROLYTIC SOLUTION CONTAINED THEREIN WHICH COMPRISES A BODY MEMBER ADAPTED TO CONTAIN AN ELECTROLYTIC SOLUTION, A REFERENCE ELECTRODE IN SAID BOYD MEMBER AND ELECTROLYTICALLY CONNECTED TO SAID SOLUTION, AN ELONGATED TUBULAR NEEDLE MEMBER CONNECTED TO SAID BODY MEMBER FOR ESTABLISHING AN ELECTROLYTIC SOLUTION FLOW PATH THERETHROUGH, A COUPLING MEMBER ADAPTED TO BE DETACHBLY CONNECTED TO A FITTING ON THE TANK, SAID TUBULAR NEEDLE MEMBER BEING IN SLIDABLE AND FLUID TIGHT ENGAGEMENT WITH AN OPENING IN SAID COUPLING MEMBER, MEANS FOR EXTENDING AND RETRACING SAID TUBULAR NEEDLE MEMBER RELATIVE TO SAID COUPLING MEMBER SO THAT AN END OF THE SAID TUBULAR NEEDLE MEMBER MAY BE EXTENDED A KNOWN DISTANCE INTO THE ELECTROLYTIC SOLUTION IN SAID TANK, AND MEANS FOR DETECTING THE POTENTIAL DIFFERENCE BETWEEN SAID REFERENCE ELECTRODE AND SAID TANK THROUGH SAID ELECTROLYTIC SOLUTION TO INDICATE THE EXTENT OF CATHODIC PROTECTION THEN EXISTING BETWEEN SAID INNER SURFACE OF SAID TANK AND SAID ELECTROLYTIC SOLUTION.
Claim 2
Dependent Claim
169 words
POTENTIAL-DETECTING APPARATUS FOR DETERMINING THE POTENTIAL EXISTING BETWEEN THE INNER SURFACE OF A TANK AND AN ELECTROLYTIC SOLUTION CONTAINED THEREIN WHICH COMPRISES A BODY MEMBER ADAPTED TO CONTAIN AN ELECTROLYTIC SOLUTION, A REFERENCE ELECTRODE IN SAID BOYD MEMBER AND ELECTROLYTICALLY CONNECTED TO SAID SOLUTION, AN ELONGATED TUBULAR NEEDLE MEMBER CONNECTED TO SAID BODY MEMBER FOR ESTABLISHING AN ELECTROLYTIC SOLUTION FLOW PATH THERETHROUGH, A COUPLING MEMBER ADAPTED TO BE DETACHBLY CONNECTED TO A FITTING ON THE TANK, SAID TUBULAR NEEDLE MEMBER BEING IN SLIDABLE AND FLUID TIGHT ENGAGEMENT WITH AN OPENING IN SAID COUPLING MEMBER, MEANS FOR EXTENDING AND RETRACING SAID TUBULAR NEEDLE MEMBER RELATIVE TO SAID COUPLING MEMBER SO THAT AN END OF THE SAID TUBULAR NEEDLE MEMBER MAY BE EXTENDED A KNOWN DISTANCE INTO THE ELECTROLYTIC SOLUTION IN SAID TANK, AND MEANS FOR DETECTING THE POTENTIAL DIFFERENCE BETWEEN SAID REFERENCE ELECTRODE AND SAID TANK THROUGH SAID ELECTROLYTIC SOLUTION TO INDICATE THE EXTENT OF CATHODIC PROTECTION THEN EXISTING BETWEEN SAID INNER SURFACE OF SAID TANK AND SAID ELECTROLYTIC SOLUTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |