US3076317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating foundation for cryogenic storage tank
Assignee: Chicago Bridge and Iron Co
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Filing: 1960-09-26
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Granted: 1963-02-05
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Expires: 1980-09-26
Abstract
No abstract record available.
Inventors
- 👤 Fave Ivan V La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:24
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/08; F17C13/081; G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/55; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0325; F17C2203/06; F17C2203/0634; F17C2203/0678
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A CRYOGENIC STORAGE TANK COMPRISING AN OUTER VESSEL INCLUDING A SUBSTANTIALLY FLAT BOTTOM RESTING ON A GRADED FOUNDATION, AN INNER STORAGE VESSEL DISPOSED WITHIN AND SPACED FROM SAID OUTER VESSLE AND HAVING A SUBSTANTIALLY FLAT BOTTOM, AND A FOUNDATION FOR SAID INNER VESSEL DISPOSED BETWEEN SAID BOTTOM OF SAID INNER VESSEL AND SAID BOTTOM OF SAID OUTER VESSEL WHICH SUBSTANTIALLY COVERS THE BOTTOM OF SAID OUTER VESSEL, SAID FOUNDATION COMPRISING A LIGHTWEIGHT CONCRETE SLAB HAVING A PLURALITY OF INDIVIDUAL CYLINDRICAL CAVITIES PENETRATING SUBSTANTIALLY THE THICKNESS OF SAID SLAB AND A THIN CONCRETE CAP COVERING SAID SLAB, SAID CAVITIES BEING FILLED WITH A LOOSE FILL OF DRY INSULATING MATERIAL.
Claim 2
Dependent Claim
108 words
A CRYOGENIC STORAGE TANK COMPRISING AN OUTER VESSEL INCLUDING A SUBSTANTIALLY FLAT BOTTOM RESTING ON A GRADED FOUNDATION, AN INNER STORAGE VESSEL DISPOSED WITHIN AND SPACED FROM SAID OUTER VESSLE AND HAVING A SUBSTANTIALLY FLAT BOTTOM, AND A FOUNDATION FOR SAID INNER VESSEL DISPOSED BETWEEN SAID BOTTOM OF SAID INNER VESSEL AND SAID BOTTOM OF SAID OUTER VESSEL WHICH SUBSTANTIALLY COVERS THE BOTTOM OF SAID OUTER VESSEL, SAID FOUNDATION COMPRISING A LIGHTWEIGHT CONCRETE SLAB HAVING A PLURALITY OF INDIVIDUAL CYLINDRICAL CAVITIES PENETRATING SUBSTANTIALLY THE THICKNESS OF SAID SLAB AND A THIN CONCRETE CAP COVERING SAID SLAB, SAID CAVITIES BEING FILLED WITH A LOOSE FILL OF DRY INSULATING MATERIAL.
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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |