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US3243966A Expired / Lapsed US ⏱️ 0.0 years remaining

Hydrate decomposition refrigeration process

Assignee: Dow Chemical Co
•
Filing: 1962-05-07
•
Granted: 1966-04-05
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Expires: 1982-05-07
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Abstract

No abstract record available.

Inventors

  • 👤 David N Glew

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 22:57
CPC Classifications
F; F25; F25B; F25B25/00; F25B9/00; F25B9/002; F25B9/006; F25B2315/00; F25B2315/003; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/91

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 135 words
A REFRIGERATION PROCESS WHICH COMPRISES; (1) PROVIDING A HYDRATE FORMING GAS, THE HYDRATE OF SAID GAS BEING A SOLID, (2) INTRODUCING SAID GAS INTO A VAPOR SPACE OVERLYING AN AQUEOUS LIDUQID FOR ADMIXTURE THEREWITH FORMING A GAS-AQUEOUS MIXTURE, (3) SUBJECTING THE GAS-AQUEOUS MIXTURE TO A PRESSURE AND TEMPERATURE AT WHICH SOLID HYDRATE OF SAID GAS FORMS IN THE PRESENCE OF SAID AQUEOUS LIQUID AND CONVEYING A SLURRY OF SAID SOLID HYDRATE AND AQUEOUS LIQUID TO A DECOMPOSITION CHAMBER, (4) DECOMPOSING IN SAID DECOMPOSITION CHAMBER AT A PRESSURE LOWER THAN THE HYDRATE FORMING PRESSURE AND WITH HEAT ABSORPTION FROM A HEAT SOURCE TO BE COOLED THE SOLID GAS HYDRATE THEREBY REGERNERATING SAID HYDRATE FORMING GAS AND SAID AQUEOUS LIQUID, (5) RECOMPRESSING SAID GAS, AND (6) RECIRCULATING SAID COMPRESSED GAS AND AQUEOUS LIQUID FOR FURTHER HYDRATE FORMATION.
Claim 2
Dependent Claim 135 words
A REFRIGERATION PROCESS WHICH COMPRISES; (1) PROVIDING A HYDRATE FORMING GAS, THE HYDRATE OF SAID GAS BEING A SOLID, (2) INTRODUCING SAID GAS INTO A VAPOR SPACE OVERLYING AN AQUEOUS LIDUQID FOR ADMIXTURE THEREWITH FORMING A GAS-AQUEOUS MIXTURE, (3) SUBJECTING THE GAS-AQUEOUS MIXTURE TO A PRESSURE AND TEMPERATURE AT WHICH SOLID HYDRATE OF SAID GAS FORMS IN THE PRESENCE OF SAID AQUEOUS LIQUID AND CONVEYING A SLURRY OF SAID SOLID HYDRATE AND AQUEOUS LIQUID TO A DECOMPOSITION CHAMBER, (4) DECOMPOSING IN SAID DECOMPOSITION CHAMBER AT A PRESSURE LOWER THAN THE HYDRATE FORMING PRESSURE AND WITH HEAT ABSORPTION FROM A HEAT SOURCE TO BE COOLED THE SOLID GAS HYDRATE THEREBY REGERNERATING SAID HYDRATE FORMING GAS AND SAID AQUEOUS LIQUID, (5) RECOMPRESSING SAID GAS, AND (6) RECIRCULATING SAID COMPRESSED GAS AND AQUEOUS LIQUID FOR FURTHER HYDRATE FORMATION.

References Cited (Backward Citations)

US3126334A Cited
US1369366A Cited
US1659681A Cited
US1713934A Cited
US1926654A Cited
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US2904511A Cited
US2974102A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-04-04 1969-10-04 1970-04-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-04-04 1973-10-04 1974-04-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-04-04 1977-10-04 1978-04-05 $7700.00 Window Closed / Lapsed

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