US3018634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for vaporizing liquefied gases and obtaining power
Assignee: Phillips Petroleum Co
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Filing: 1958-04-11
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Granted: 1962-01-30
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Expires: 1978-04-11
Abstract
No abstract record available.
Inventors
- 👤 Forrest E Gilmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:14
CPC Classifications
F; F17; F17C; F17C9/00; F17C9/02; F17C9/04; F17C2265/00; F17C2265/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
A METHOD OF VAPORIZING A LIQUEFIED NATURAL GAS COMPRISING SUBJECTING A STREAM OF SAID LIQUEFIED GAS TO HEAT INTERCHANGE WITH A HEAT EXCHANGE FLUID WARMER THAN SAID LIQUEFIED GAS IN A PLURALITY OF SUCCESSIVE INDIRECT HEAT EXCHANGE ZONES AND THEREBY VAPORIZING SAID LIQUEFIED GAS, HEATING AT LEAST TWO OF SAID HEAT EXCHANGE ZONES WITH EXPANDED HEAT EXCHANGE FLUIDS BEING CYCLED IN ADJACENT CLOSED HEAT EXCHANGE CIRCUITS AND WHEREIN SAID HEAT EXCHANGE FLUIDS IN EACH OF SAID CIRCUITS ARRANGED IN CASCADE RELATION ARE CONDENSED BY HEAT INTERCHANGE WITH SAID LIQUEFIED GAS IN SAID HEAT EXCHANGE ZONES, SAID CIRCUITS BEING ADAPTED TO RECOVER REFRIGERATION AND POWER OBTAINABLE DURING SAID HEAT INTERCHANGE, AND RECOVERING AS A PRODUCT OF THE METHOD SAID LIQUEFIED GAS AS A GAS.
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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) | 1965-01-29 | 1965-07-31 | 1966-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-29 | 1969-07-31 | 1970-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-29 | 1973-07-31 | 1974-01-30 | $7700.00 | Window Closed / Lapsed |