US2976226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cathodic protection of tanks filled with sea-water using an applied voltage and means for execution of the method
Assignee: Individual
•
Filing: 1957-07-05
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Granted: 1961-03-21
•
Expires: 1977-07-05
Abstract
No abstract record available.
Inventors
- 👤 Risberg Eilif
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:31
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE METHOD OF PROTECTING TANKS FILLED WITH SEA WATER AGAINST CORROSION, WHICH COMPRISES POSITIONING WITHIN THE TANK, A HOLLOW INSOLUBLE ANODE HAVING A WALL FROMED FOR THE PASSAGE OF LIQUID THERETHROUGH, APPLYING A VOLTAGE TO SAID ANODE TO CAUSE A CURRENT TO FLOW BETWEEN SAID ANODE AND THE INTERIOR SURFACE OF THE TANK, THE TANK BEING THE CATHODE, AND TO CREATE ANODE PRODUCTS IN A ZONE AROUND SAID ANODE, REDUCING THE PRESSURE WITHIN THE HOLLOW OF SAID ANODE WITH RESPECT TO THE PRESSURE IN THE SEA WATER SURROUNDING SAID ANODE TO CAUSE LIQUID TO BE DRAWN THROUGH THE WALL OF SAID ANODE AND REMOVING SAID ANODE PRODUCTS FROM SAID ZONE AROUND SAID ANODE BY CARRYING SAID PRODUCTS THROUGH SAID WALL BY SAID LIQUID DRAWN THERETHROUGH.
Claim 2
Independent Claim
125 words
THE METHOD OF PROTECTING TANKS FILLED WITH SEA WATER AGAINST CORROSION, WHICH COMPRISES POSITIONING WITHIN THE TANK, A HOLLOW INSOLUBLE ANODE HAVING A WALL FROMED FOR THE PASSAGE OF LIQUID THERETHROUGH, APPLYING A VOLTAGE TO SAID ANODE TO CAUSE A CURRENT TO FLOW BETWEEN SAID ANODE AND THE INTERIOR SURFACE OF THE TANK, THE TANK BEING THE CATHODE, AND TO CREATE ANODE PRODUCTS IN A ZONE AROUND SAID ANODE, REDUCING THE PRESSURE WITHIN THE HOLLOW OF SAID ANODE WITH RESPECT TO THE PRESSURE IN THE SEA WATER SURROUNDING SAID ANODE TO CAUSE LIQUID TO BE DRAWN THROUGH THE WALL OF SAID ANODE AND REMOVING SAID ANODE PRODUCTS FROM SAID ZONE AROUND SAID ANODE BY CARRYING SAID PRODUCTS THROUGH SAID WALL BY SAID LIQUID DRAWN THERETHROUGH.
References Cited (Backward Citations)
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US1335209A
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Cited
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Cited
FR1112228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |