US2548377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for producing liquid air rich in oxygen
Assignee: Individual
•
Filing: 1946-02-20
•
Granted: 1951-04-10
•
Expires: 1966-02-20
Abstract
No abstract record available.
Inventors
- 👤 Kapitza Peter Leonidovitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:06
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
APPARATUS FOR PRODUCING LIQUID OXYGEN OR LIQUID AIR CONTAINING OXYGEN COMPRISING, A PRIMARY HEAT EXCHANGE DEVICE, A SECONDARY HEAT EXCHANGE DEVICE, CONDUIT MEANS GUIDING AIR FROM THE PRIMARY HEAT EXCHANGE DEVICE TO SAID SECONDARY HEAT EXCHANGE DEVICE, A HEAT EXCHANGE CONDENSER, CONDUIT MEANS GUIDING AIR FROM THE SECONDARY HEAT EXCHANGE DEVICE TO SAID HEAT EXCHANGE CONDENSER, AN EVAPORATOR, A COLLECTOR RECEIVING LIQUID FROM SAID HEAT EXCHANGE CONDENSER, A RECTIFYING DEVICE, CONDUIT MEANS GUIDING LIQUID FROM THE COLLECTOR TO AN UPPER PORTION OF THE RECTIFIER, A PIPE CONNECTING LOWER PART OF THE RECTIFIER WITH SAID EVAPORATOR, AN EXPANSION TURBINE DELIVERING AN EXPANDED GASEOUS FRACTION FROM THE COLLECTOR INTO HEAT EXCHANGE RELATIONSHIP WITH THE AIR IN SAID HEAT EXCHANGE CONDENSER, MEANS GUIDING SAID EXPANDED FRACTION FROM THE HEAT EXCHANGE CONDENSER INTO HEAT EXCHANGE RELATIONSHIP WITH THE AIR IN SAID PRIMARY HEAT EXCHANGE DEVICE, AND CONDUIT MEANS CONNECTED TO AN INLET OF THE TURBINE RECEIVING A GASEOUS FRACTION FROM SAID COLLECTOR.
Claim 2
Dependent Claim
158 words
APPARATUS FOR PRODUCING LIQUID OXYGEN OR LIQUID AIR CONTAINING OXYGEN COMPRISING, A PRIMARY HEAT EXCHANGE DEVICE, A SECONDARY HEAT EXCHANGE DEVICE, CONDUIT MEANS GUIDING AIR FROM THE PRIMARY HEAT EXCHANGE DEVICE TO SAID SECONDARY HEAT EXCHANGE DEVICE, A HEAT EXCHANGE CONDENSER, CONDUIT MEANS GUIDING AIR FROM THE SECONDARY HEAT EXCHANGE DEVICE TO SAID HEAT EXCHANGE CONDENSER, AN EVAPORATOR, A COLLECTOR RECEIVING LIQUID FROM SAID HEAT EXCHANGE CONDENSER, A RECTIFYING DEVICE, CONDUIT MEANS GUIDING LIQUID FROM THE COLLECTOR TO AN UPPER PORTION OF THE RECTIFIER, A PIPE CONNECTING LOWER PART OF THE RECTIFIER WITH SAID EVAPORATOR, AN EXPANSION TURBINE DELIVERING AN EXPANDED GASEOUS FRACTION FROM THE COLLECTOR INTO HEAT EXCHANGE RELATIONSHIP WITH THE AIR IN SAID HEAT EXCHANGE CONDENSER, MEANS GUIDING SAID EXPANDED FRACTION FROM THE HEAT EXCHANGE CONDENSER INTO HEAT EXCHANGE RELATIONSHIP WITH THE AIR IN SAID PRIMARY HEAT EXCHANGE DEVICE, AND CONDUIT MEANS CONNECTED TO AN INLET OF THE TURBINE RECEIVING A GASEOUS FRACTION FROM SAID COLLECTOR.
References Cited (Backward Citations)
US1354056A
Cited
US1673485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |