US3246479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-insulated tank having tank contents refrigerating, foundation warming, and loading and unloading systems
Assignee: Phillips Petroleum Co
•
Filing: 1963-12-23
•
Granted: 1966-04-19
•
Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Carl S Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:55
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/10; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0119; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/052; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0308; F17C2203/032; F17C2203/06; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0648; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0332; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/033; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2225/00; F17C2225/01; F17C2225/0146; F17C2225/0153; F17C2225/0161; F17C2225/03; F17C2225/033; F17C2225/04; F17C2225/042; F17C2225/043; F17C2225/044; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2227/03; F17C2227/0337; F17C2227/0339; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/043; F17C2250/0439; F17C2250/0486; F17C2250/0491; F17C2265/00; F17C2265/03; F17C2265/032; F17C2265/037
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
THE PROCESS OF STORING A VOLATILE LIQUID AT LOW GAUGE PRESSURE AND AT A TEMPERATURE BELOW 32*F. IN A CLOSED TANK RESTING ON THE GROUND, COMPRISING WITHDRAWING VAPOR FROM SAID TANK, COMPRESSING AND THEREBY HEATING SAID VAPOR, PASSING SAID COMPRESSED AND HEATED VAPOR IN INDIRECT HEAT EXCHANGE WITH THE GROUND UNDER SAID TANK, COOLING AND CONDENSING SAID COMPRESSED VAPOR INTO LIQUID UNDER A HIGHER GAUGE PRESSURE THAN SAID TANK, AND FLASHING SAID LIQUID INTO SAID TANK TO AT LEAST PARTIALLY VAPORIZE AT SAID LOW GAUGE PRESSURE AND REFRIGERATE SAID VOLATILE LIQUID IN SAID TANK.
Claim 2
Dependent Claim
94 words
THE PROCESS OF STORING A VOLATILE LIQUID AT LOW GAUGE PRESSURE AND AT A TEMPERATURE BELOW 32*F. IN A CLOSED TANK RESTING ON THE GROUND, COMPRISING WITHDRAWING VAPOR FROM SAID TANK, COMPRESSING AND THEREBY HEATING SAID VAPOR, PASSING SAID COMPRESSED AND HEATED VAPOR IN INDIRECT HEAT EXCHANGE WITH THE GROUND UNDER SAID TANK, COOLING AND CONDENSING SAID COMPRESSED VAPOR INTO LIQUID UNDER A HIGHER GAUGE PRESSURE THAN SAID TANK, AND FLASHING SAID LIQUID INTO SAID TANK TO AT LEAST PARTIALLY VAPORIZE AT SAID LOW GAUGE PRESSURE AND REFRIGERATE SAID VOLATILE LIQUID IN SAID TANK.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |