US2760351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fractionating apparatus
Assignee: Air Products Inc
•
Filing: 1952-12-12
•
Granted: 1956-08-28
•
Expires: 1972-12-12
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Schilling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:58
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04763; F25J3/04866; F25J3/04872; F25J3/04884; F25J3/04406; F25J3/04412; F25J3/04896; F25J3/04903; F25J3/04933; F25J3/04939; F25J3/04975; F25J3/04987; F25J5/00; F25J5/002; F25J5/005; F25J2235/00; F25J2235/50; F25J2250/00; F25J2250/02; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/903; Y10S62/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A FRACTIONATING COLUMN INCLUDING A SUCCESSION OF FRACTIONATING TRAYS, EACH TRAY INCLUDING A PLURALITY OF FRACTIONATING WELLS, THE WELLS BEING PROVIDED WITH SEPARATE DOWNCOMERS FOR CONDUCTING LIQUID DOWNWARDLY TO INDIVIDUAL WELLS IN THE NEXT TRAY BELOW AND MEANS FOR CONDUCTING UPWARDLY FLOWING VAPOR THROUGH THE LIQUID IN THE WELLS, AND A CONDENSING AND DISTRIBUTING MEANS FOR LIQUEFYING VAPOR ORIGINATING IN THE COLUMN AND FOR DISTRIBUTING THE LIQUEFIED VAPOR TO INDIVIDUAL WELLS OF THE FIRST TRAY OF THE SUCCESSION OF FRACTIONATING TRAYS, THE CONDENSING AND DISTRIBUTING MEANS INCLUDING APLURALITY OF CONDENSER ELEMENTS EACH HAVING AN INLET OPENING AND A DISCHARGE OPENING, MEANS CONDUCTING THE VAPOR FROM THE COLUMN TO THE INLET OPENING OF EACH OF THE CONDENSER ELEMENTS, MEANS CONDUCTING LIQUID FROM THE DISCHARGE OPENING OF EACH OF THE CONDENSER ELEMENTS TO INDIVIDUAL WELLS IN THE FIRST TRAY OF THE SUCCESSION OF TRAYS AND MEANS FOR PASSING A RELATIVELY COLDER FLUID IN HEAT EXCHANGE RELATION WITH THE CONDENSER ELEMENTS.
Claim 2
Dependent Claim
158 words
A FRACTIONATING COLUMN INCLUDING A SUCCESSION OF FRACTIONATING TRAYS, EACH TRAY INCLUDING A PLURALITY OF FRACTIONATING WELLS, THE WELLS BEING PROVIDED WITH SEPARATE DOWNCOMERS FOR CONDUCTING LIQUID DOWNWARDLY TO INDIVIDUAL WELLS IN THE NEXT TRAY BELOW AND MEANS FOR CONDUCTING UPWARDLY FLOWING VAPOR THROUGH THE LIQUID IN THE WELLS, AND A CONDENSING AND DISTRIBUTING MEANS FOR LIQUEFYING VAPOR ORIGINATING IN THE COLUMN AND FOR DISTRIBUTING THE LIQUEFIED VAPOR TO INDIVIDUAL WELLS OF THE FIRST TRAY OF THE SUCCESSION OF FRACTIONATING TRAYS, THE CONDENSING AND DISTRIBUTING MEANS INCLUDING APLURALITY OF CONDENSER ELEMENTS EACH HAVING AN INLET OPENING AND A DISCHARGE OPENING, MEANS CONDUCTING THE VAPOR FROM THE COLUMN TO THE INLET OPENING OF EACH OF THE CONDENSER ELEMENTS, MEANS CONDUCTING LIQUID FROM THE DISCHARGE OPENING OF EACH OF THE CONDENSER ELEMENTS TO INDIVIDUAL WELLS IN THE FIRST TRAY OF THE SUCCESSION OF TRAYS AND MEANS FOR PASSING A RELATIVELY COLDER FLUID IN HEAT EXCHANGE RELATION WITH THE CONDENSER ELEMENTS.
References Cited (Backward Citations)
US1510178A
Cited
US1800363A
Cited
US1976800A
Cited
GB372067A
Cited
US2070100A
Cited
US2208573A
Cited
US2292350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |