US3192732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low temperature refrigeration in ethylene plants
Assignee: —
•
Filing: 1961-04-24
•
Granted: 1965-07-06
•
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 06:47
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)
US1325667A
Cited
US2028432A
Cited
US2573341A
Cited
US2731810A
Cited
US2813920A
Cited
US2915881A
Cited
US2777305A
Cited
US2804488A
Cited
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 |