US3203191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy derived from expansion of liquefied gas
Assignee: Conch International Methane Ltd
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Filing: 1961-07-20
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Granted: 1965-08-31
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Expires: 1981-07-20
Abstract
No abstract record available.
Inventors
- 👤 French Michael Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:55
CPC Classifications
F; F25; F25J; F25J1/00; F25J1/02; F25J1/0243; F25J1/0279; F25J1/0285; F25J1/0288; F25J1/0002; F25J1/0005; F25J1/0007; F25J1/001; F25J1/0012; F25J1/0015; F25J1/0017; F25J1/0022; F25J1/003; F25J1/0032; F25J1/004; F25J1/0042; F25J1/0047; F25J1/005; F25J1/006; F25J1/007; F25J1/0072; F25J1/0203; F25J1/0205; F25J1/0257; F25J1/0262; F25J1/0264; F25J1/0265; F25J1/0268; F25J2205/00; F25J2205/02; F25J2210/00; F25J2210/06; F25J2220/00; F25J2220/60; F25J2220/62; F25J2230/00; F25J2230/08; F25J2230/60; F25J2240/00; F25J2240/40; F25J2270/00; F25J2270/90; F25J2290/00; F25J2290/62; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS FOR LIQUEFACTION OF A GAS IN WHICH THE GAS IS LIQUEFIED UNDER A HIGH PRESSURE AND THE PRESSURE OF THE LIQUEFIED GAS IS THEN REDUCED, THE METHOD OF EFFECTING SUCH REDUCTION IN PRESSURE COMPRISING PASSING THE LIQUEFIED GAS AT THE HIGH PRESSURE THROUGH A HYDRAULIC MOTOR WHILE MAINTAINING THE BACK PRESSURE ON THE MOTOR IN EXCESS OF THE SATURATION PRESSURE OF THE LIQUID WHEREBY SUBSTANTIALLY NO GAS PHASE IS FORMED IN THE MOTOR AND ENERGY IS PRODUCED.
Claim 2
Dependent Claim
79 words
A PROCESS FOR LIQUEFACTION OF A GAS IN WHICH THE GAS IS LIQUEFIED UNDER A HIGH PRESSURE AND THE PRESSURE OF THE LIQUEFIED GAS IS THEN REDUCED, THE METHOD OF EFFECTING SUCH REDUCTION IN PRESSURE COMPRISING PASSING THE LIQUEFIED GAS AT THE HIGH PRESSURE THROUGH A HYDRAULIC MOTOR WHILE MAINTAINING THE BACK PRESSURE ON THE MOTOR IN EXCESS OF THE SATURATION PRESSURE OF THE LIQUID WHEREBY SUBSTANTIALLY NO GAS PHASE IS FORMED IN THE MOTOR AND ENERGY IS PRODUCED.
References Cited (Backward Citations)
GB351391A
Cited
US2552451A
Cited
US2495549A
Cited
US2760356A
Cited
US2896414A
Cited
US2901326A
Cited
GB864855A
Cited
US3066492A
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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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |