US3057706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjusting the heating value and specific gravity of natural gas
Assignee: Conch International Methane Ltd
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Filing: 1958-06-25
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Granted: 1962-10-09
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Expires: 1978-06-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Walton H Marshall
- 👤 Wilfred C Gains
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:16
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0204; F25J3/0209; F25J3/0214; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/36; C01B3/48; C10; C10G; C10G9/00; C10G9/34; C10G9/36; C10G9/38; C10K; C10K3/00; C10K3/06; F17; F17C; F17C9/00; F17C9/02; F17C9/04; F25J3/0228; F25J3/0233; F25J3/0238; F25J2200/00; F25J2200/02; F25J2200/74; F25J2205/00; F25J2205/82; F25J2260/00; F25J2260/60; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A METHOD OF REDUCING THE HEATING VALUE AND ADJUSTING THE SPECIFIC GRAVITY OF A NATURAL GAS COMPOSED MOSTLY OF METHANE AND CONTAINING A MINOR PROPORTION OF HEAVIER HYDROCARBONS, THE STEPS OF: (A) SEPARATING AT LEAST A PORTION OF THE HEAVIER HYDROCARBONS FROM THE REMAINDER OF THE NATURAL GAS, (B) PARTIALLY BURNING THE SEPARATED HEAVIER HYDROCARBONS WITH AIR TO PRODUCE AN INTERMEDIATE GAS COMPRISING, PRINCIPALLY, H2, CO AND N2 AND MINOR PROPORTIONS OF THE HEAVIER HYDROCARBONS, H2O AND CO2, (C) REACTING THE INTERMEDIATE GAS WITH H2O TO PRODUCE A CARRIER GAS COMPRISING, PRINCIPALLY, H2, H2O, N2 AND CO2, AND MINOR PROPORTIONS OF THE HEAVIER HYDROCARBONS AND CO, (D) SEPARATING AT LEAST THE MAJOR PORTION OF THE H2O FROM THE CARRIER GAS, AND (E) BLENDING THE REMAINING CARRIER GAS WITH SAID REMAINDER OF THE NATURAL GAS.
Claim 2
Dependent Claim
135 words
IN A METHOD OF REDUCING THE HEATING VALUE AND ADJUSTING THE SPECIFIC GRAVITY OF A NATURAL GAS COMPOSED MOSTLY OF METHANE AND CONTAINING A MINOR PROPORTION OF HEAVIER HYDROCARBONS, THE STEPS OF: (A) SEPARATING AT LEAST A PORTION OF THE HEAVIER HYDROCARBONS FROM THE REMAINDER OF THE NATURAL GAS, (B) PARTIALLY BURNING THE SEPARATED HEAVIER HYDROCARBONS WITH AIR TO PRODUCE AN INTERMEDIATE GAS COMPRISING, PRINCIPALLY, H2, CO AND N2 AND MINOR PROPORTIONS OF THE HEAVIER HYDROCARBONS, H2O AND CO2, (C) REACTING THE INTERMEDIATE GAS WITH H2O TO PRODUCE A CARRIER GAS COMPRISING, PRINCIPALLY, H2, H2O, N2 AND CO2, AND MINOR PROPORTIONS OF THE HEAVIER HYDROCARBONS AND CO, (D) SEPARATING AT LEAST THE MAJOR PORTION OF THE H2O FROM THE CARRIER GAS, AND (E) BLENDING THE REMAINING CARRIER GAS WITH SAID REMAINDER OF THE NATURAL 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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |