Patent US3192732A successfully refreshed from Google Patents.
US3192732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low temperature refrigeration in ethylene plants
Assignee: —
•
Filing: 1961-04-24
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Granted: 1965-07-06
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Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:14
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0242; C; C07; C07C; C07C7/00; C07C7/005; C07C7/11; F25B; F25B9/00; F25B9/002; F25B9/004; F25J3/0204; F25J3/0219; F25J3/0233; F25J3/0238; F25J2205/00; F25J2205/50; F25J2210/00; F25J2210/12; F25J2215/00; F25J2215/62; F25J2215/64; F25J2245/00; F25J2245/02; F25J2270/00; F25J2270/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN IMPROVED PROCESS FOR UTILIZING AT LOW TEMPERATURES THE REFRIGERATION AVAILABLE IN A HIGH PRESSURE LIQUID ETHANE STREAM WHICH COMPRISES FLASHING THE LIQUID ETHANE STREAM AT A TEMPERATURE IN THE RANGE OF 0 TO -150* F. AND FROM A PRESSURE IN THE RANGE OF 75 TO 400 P.S.I.G. TO A PRESSURE IN THE RANGE OF 50 TO 150 P.S.I.G. IN THE PRESENCE OF A COOL LIGHTER GASEOUS STREAM SUPPLIED AT A TEMPERATURE BELOW - 80*F. AND UTILIZING THE COMBINED STREAM TO EFFECT REFRIGERATION OF ANOTHER STREAM.
Claim 2
Dependent Claim
86 words
AN IMPROVED PROCESS FOR UTILIZING AT LOW TEMPERATURES THE REFRIGERATION AVAILABLE IN A HIGH PRESSURE LIQUID ETHANE STREAM WHICH COMPRISES FLASHING THE LIQUID ETHANE STREAM AT A TEMPERATURE IN THE RANGE OF 0 TO -150* F. AND FROM A PRESSURE IN THE RANGE OF 75 TO 400 P.S.I.G. TO A PRESSURE IN THE RANGE OF 50 TO 150 P.S.I.G. IN THE PRESENCE OF A COOL LIGHTER GASEOUS STREAM SUPPLIED AT A TEMPERATURE BELOW - 80*F. AND UTILIZING THE COMBINED STREAM TO EFFECT REFRIGERATION OF ANOTHER STREAM.
References Cited (Backward Citations)
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Cited
US2028432A
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US2573341A
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US2731810A
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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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |