Patent US2866742A successfully refreshed from Google Patents.
US2866742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathodically protected water storage tanks
Assignee: General Electric Co
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Filing: 1956-06-29
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Granted: 1958-12-30
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Expires: 1976-06-29
Abstract
No abstract record available.
Inventors
- 👤 Robert J Sutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:11
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/18; F24H1/181; F24H1/183; C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/10; F24H9/00; F24H9/40; F24H9/45; F24H9/455; C23F2213/00; C23F2213/20; C23F2213/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A WATER STORAGE TANK COMPRISING A HOLLOW BODY FORMED OF STEEL AND INCLUDING A TUBULAR SIDE WALL AND A PAIR OF OPPOSED END WALLS, A PRIMARY LINER FORMED OF ZINC AND INTIMATELY BONDED TO THE INTERIOR SURFACES OF SAID SIDE WALL AND SAID END WALLS SAID PRIMARY LINER BEING CONTINUOUS AND COMMENSURATE WITH THE INTERIOR SURFACES OF SAID SIDE WALL AND SAID END WALLS COMPLETELY TO COVER THE SAME, AND A SECONDARY LINER IN CONTACT WITH THE INTERIOR SURFACE OF SAID PRIMARY LINER AND FORMED OF CONCRETE, SAID SECOND LINER COVERING THE MAJOR AREA OF THE INTERIOR SURFACE OF SAID PRIMER LINER AND LEAVING UNCOVERED THE MINOR AREA OF THE INTEIROR SURFACE OF SAID PRIMARY LINER, SAID UNCOVERED MINOR AREA BEING AT LEAST SUBSTANTIALLY COMMENSURATE WITH THE INSIDE AREA OF ONE OF SAID END WALLS, SAID SECONDARY LINER SUPPLYING SMALL AMOUNTS OF ALKALI EARTH METAL CATIONS TO THE WATER STORED IN SAID BODY, AND THE AREA OF SAID SECONDARY LINER IN CONTACT WITH THE WATER STORED IN SAID BODY BEING MATERIALLY GREATER THAN THE AREA OF SAID PRIMARY LINER IN CONTACT WITH THE WATER STORED IN SAID BODY.
Claim 2
Dependent Claim
188 words
A WATER STORAGE TANK COMPRISING A HOLLOW BODY FORMED OF STEEL AND INCLUDING A TUBULAR SIDE WALL AND A PAIR OF OPPOSED END WALLS, A PRIMARY LINER FORMED OF ZINC AND INTIMATELY BONDED TO THE INTERIOR SURFACES OF SAID SIDE WALL AND SAID END WALLS SAID PRIMARY LINER BEING CONTINUOUS AND COMMENSURATE WITH THE INTERIOR SURFACES OF SAID SIDE WALL AND SAID END WALLS COMPLETELY TO COVER THE SAME, AND A SECONDARY LINER IN CONTACT WITH THE INTERIOR SURFACE OF SAID PRIMARY LINER AND FORMED OF CONCRETE, SAID SECOND LINER COVERING THE MAJOR AREA OF THE INTERIOR SURFACE OF SAID PRIMER LINER AND LEAVING UNCOVERED THE MINOR AREA OF THE INTEIROR SURFACE OF SAID PRIMARY LINER, SAID UNCOVERED MINOR AREA BEING AT LEAST SUBSTANTIALLY COMMENSURATE WITH THE INSIDE AREA OF ONE OF SAID END WALLS, SAID SECONDARY LINER SUPPLYING SMALL AMOUNTS OF ALKALI EARTH METAL CATIONS TO THE WATER STORED IN SAID BODY, AND THE AREA OF SAID SECONDARY LINER IN CONTACT WITH THE WATER STORED IN SAID BODY BEING MATERIALLY GREATER THAN THE AREA OF SAID PRIMARY LINER IN CONTACT WITH THE WATER STORED IN SAID BODY.
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) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |