US2952984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing liquefied natural gas
Assignee: Conch International Methane Ltd
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Filing: 1958-06-23
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Granted: 1960-09-20
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Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Walton H Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:59
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0204; F25J3/0209; F25J3/0214; C; C07; C07C; C07C7/00; C07C7/04; C10; C10G; C10G5/00; C10G5/06; C10K; C10K1/00; C10K1/04; F17; F17C; F17C9/00; F17C9/02; F17C9/04; F25J3/0228; F25J3/0233; F25J3/0238; F17C2265/00; F17C2265/05; F25J2200/00; F25J2200/02; F25J2200/74; F25J2270/00; F25J2270/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN A METHOD OF SEPARATING THE HEAVIER HYDROCARBONS FORM LIQUEFIED NATURAL GAS CONTAINING A SUBSTANTIALLY PROPORTION OF METHANE, THE STEPS OF: (A) FEEDING THE LIQUEFIED NATURAL GAS INTO THE MEDIAL PORTION OF A FRACTIONATING ZONE, (B) HEATING THE CONTENTS OF THE LOWER PORTION OF THE FRACTIONATING ZONE TO A TEMPERATURE TO PRODUCE METHANE ENRICHED VAPORS IN THE UPPER PORTION OF THE FRACTIONATING ZONE, (E) WITHDRAWING VAPORS FROM THE UPPER PORTION OF THE FRACTIONATING ZONE AND DIRECTLY PASSING SAID VAPORS IN HEAT EXCHANGE RELATION WITH THE LIQUEFIED NATURAL GAS BEING FED TO THE FRACTIONATING ZONE, TO HEAT SAID FEED AND COOL SAID VAPORS, (D) SEPARATING CONDENSATES FROM SAID VAPORS, AFTER THEY HAVE BEEN USED IN HEAT EXCHANGE RELATIONSHIP WITH THE LIQUEFIED NATURAL GAS,
Claim 2
Dependent Claim
122 words
IN A METHOD OF SEPARATING THE HEAVIER HYDROCARBONS FORM LIQUEFIED NATURAL GAS CONTAINING A SUBSTANTIALLY PROPORTION OF METHANE, THE STEPS OF: (A) FEEDING THE LIQUEFIED NATURAL GAS INTO THE MEDIAL PORTION OF A FRACTIONATING ZONE, (B) HEATING THE CONTENTS OF THE LOWER PORTION OF THE FRACTIONATING ZONE TO A TEMPERATURE TO PRODUCE METHANE ENRICHED VAPORS IN THE UPPER PORTION OF THE FRACTIONATING ZONE, (E) WITHDRAWING VAPORS FROM THE UPPER PORTION OF THE FRACTIONATING ZONE AND DIRECTLY PASSING SAID VAPORS IN HEAT EXCHANGE RELATION WITH THE LIQUEFIED NATURAL GAS BEING FED TO THE FRACTIONATING ZONE, TO HEAT SAID FEED AND COOL SAID VAPORS, (D) SEPARATING CONDENSATES FROM SAID VAPORS, AFTER THEY HAVE BEEN USED IN HEAT EXCHANGE RELATIONSHIP WITH THE LIQUEFIED NATURAL GAS,
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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |