US3195316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methane liquefaction system
Assignee: Chicago & Bridge & Iron Co
•
Filing: 1963-08-02
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Granted: 1965-07-20
•
Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 James B Maher
- 👤 Mair James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:42
CPC Classifications
F; F25; F25J; F25J1/00; F25J1/0002; F25J1/0022; F17; F17C; F17C13/00; F17C13/02; F17C13/025; F25J1/0025; F25J1/003; F25J1/0032; F25J1/0045; F25J1/0047; F25J1/0052; F25J1/006; F25J1/008; F25J1/0085; F25J1/0087; F25J1/02; F25J1/0203; F25J1/0205; F25J1/0221; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F25J2205/00; F25J2205/02; F25J2210/00; F25J2210/62; F25J2220/00; F25J2220/60; F25J2220/62; F25J2230/00; F25J2230/08; F25J2230/30; F25J2235/00; F25J2235/60; F25J2290/00; F25J2290/62; Y; Y10; Y10S; Y10S62/00; Y10S62/912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A METHOD OF LIQUIEFYING NATURAL GAS AND STORING THE SAME IN AN INSULATED STORAGE TANK AT CLOSE TO BUT SLIGHTLY ABOVE ATMOSPHERIC PRESSURE, WHICH COMPRISES SUBJECTING INCOMING NATURAL GAS TO THE REFRIGERATING ACTION OF A CASCADE SYSTEM TO CONVERT IT INTO A LIQUID AT A TEMPERATURE WHICH EXERTS A PRESSURE SUBSTANTIALLY ABOVE ATMOSPHERIC PRESSURE, FURTHER COOLING THE LIQUEFIED GAS BY PASSING IT THROUGH THE TUBE SIDE OF A FIRST VESSEL COOLED ON THE SHELL SIDE OF LIQUEFIED NATURAL GAS WITHDRAWN FROM A STORAGE TANK HOLDING THE SAME AT CLOSE TO BUT SLIGHTLY ABOVE ATMOSPHERIC PRESSURE, REMOVING THE LIQUEFIED GAS FROM THE TUBE SIDE OF THE FIRST VESSEL AT A MUCH LOWER TEMPERATURE THAN AT WHICH IT ENTERED AND FLASHING IT INTO SAID STORAGE TANK FOR STORAGE AT A TEMPERATURE AT WHICH THE GAS GIVES A VAPOR PRESSURE CLOSE TO BUT SLIGHTLY ABOVE ATMOSPHERIC PRESSURE, WITHDRAWING VAPOR FROM THE TANK WHEN IT REACHES A NOMINAL LEVEL, INCREASING THE PRESSURE OF THE WITHDRAWN VAPOR, FEEDING THE VAPOR AT INCREASED PRESSURE INTO THE TUBE SIDE
Claim 2
Independent Claim
172 words
A METHOD OF LIQUIEFYING NATURAL GAS AND STORING THE SAME IN AN INSULATED STORAGE TANK AT CLOSE TO BUT SLIGHTLY ABOVE ATMOSPHERIC PRESSURE, WHICH COMPRISES SUBJECTING INCOMING NATURAL GAS TO THE REFRIGERATING ACTION OF A CASCADE SYSTEM TO CONVERT IT INTO A LIQUID AT A TEMPERATURE WHICH EXERTS A PRESSURE SUBSTANTIALLY ABOVE ATMOSPHERIC PRESSURE, FURTHER COOLING THE LIQUEFIED GAS BY PASSING IT THROUGH THE TUBE SIDE OF A FIRST VESSEL COOLED ON THE SHELL SIDE OF LIQUEFIED NATURAL GAS WITHDRAWN FROM A STORAGE TANK HOLDING THE SAME AT CLOSE TO BUT SLIGHTLY ABOVE ATMOSPHERIC PRESSURE, REMOVING THE LIQUEFIED GAS FROM THE TUBE SIDE OF THE FIRST VESSEL AT A MUCH LOWER TEMPERATURE THAN AT WHICH IT ENTERED AND FLASHING IT INTO SAID STORAGE TANK FOR STORAGE AT A TEMPERATURE AT WHICH THE GAS GIVES A VAPOR PRESSURE CLOSE TO BUT SLIGHTLY ABOVE ATMOSPHERIC PRESSURE, WITHDRAWING VAPOR FROM THE TANK WHEN IT REACHES A NOMINAL LEVEL, INCREASING THE PRESSURE OF THE WITHDRAWN VAPOR, FEEDING THE VAPOR AT INCREASED PRESSURE INTO THE TUBE SIDE
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |