US3177679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning of supersonic aircraft
Assignee: Normalair Ltd
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Filing: 1963-12-03
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Granted: 1965-04-13
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Expires: 1983-12-03
Abstract
No abstract record available.
Inventors
- 👤 Desmond F J Quick
- 👤 Donald J Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:33
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/06; B64D2013/0603; B64D2013/0659; B64D2013/0688
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
208 words
AN AIR-CYCLE AIR CONDITIONING SYSTEM FOR SUPERSONIC AIRCRAFT, COMPRISING; A FIRST CONDUIT FOR CONNECTION WITH A SUPPLY OF PRESSURIZED AIR; MEANS FOR COOLING THE PRESSURIZED AIR PASSING THROUGH SAID CONDUIT; A FIRST EXPANSION TURBINE COMMUNICATING ON ITS INLET SIDE WITH SAID FIRST CONDUIT SO AS TO BE DRIVEN BY THE PRESSURIZED FLUID PASSING THERETHROUGH; A SECOND CONDUIT FOR COMMUNICATING THE OUTLET OF SAID EXPANSION TURBINE WITH THE SPACE TO BE CONDITIONED; A FIRST COMPRESSOR DRIVABLY CONNECTED TO SAID FIRST EXPANSION TURBINE; A RECIRCULATION CONDUIT FOR COMMUNICATING THE SPACE TO BE CONDITIONED WITH THE INLET OF SAID FIRST COMPRESSOR; A THIRD CONDUIT COMMUNICATING WITH THE OUTLET OF SAID COMPRESSOR AND WITH SAID SECOND CONDUIT; AND MEANS CONDUITLY ASSOCIATED WITH SAID THIRD CONDUIT FOR COOLING THE AIR PASSING THERETHROUGH AND COMPRISING A SECOND EXPANSION TURBINE, A SECOND COMPRESSOR AND A HEAT EXCHANGER, SAID SECOND COMPRESSOR BEING CONNECTED TO ITS INLET SIDE OF SAID THIRD CONDUIT LEADING FROM SAID FIRST COMPRESSOR, THE OUTLET FROM SAID SECOND COMPRESSOR BEING CONNECTED THROUGH SAID HEAT EXCHANGER TO THE INLET OF SAID SECOND EXPANSION TURBINE, THE OUTLET OF SAID SECOND EXPANSION BEING CONDUITLY CONNECTED TO SAID THIRD CONDUIT LEADING TO SAID SECOND CONDUIT, AND SAID SECOND COMPRESSOR BEING DRIVABLY CONNECTED TO SAID SECOND EXPANSION TURBINE.
Claim 2
Dependent Claim
208 words
AN AIR-CYCLE AIR CONDITIONING SYSTEM FOR SUPERSONIC AIRCRAFT, COMPRISING; A FIRST CONDUIT FOR CONNECTION WITH A SUPPLY OF PRESSURIZED AIR; MEANS FOR COOLING THE PRESSURIZED AIR PASSING THROUGH SAID CONDUIT; A FIRST EXPANSION TURBINE COMMUNICATING ON ITS INLET SIDE WITH SAID FIRST CONDUIT SO AS TO BE DRIVEN BY THE PRESSURIZED FLUID PASSING THERETHROUGH; A SECOND CONDUIT FOR COMMUNICATING THE OUTLET OF SAID EXPANSION TURBINE WITH THE SPACE TO BE CONDITIONED; A FIRST COMPRESSOR DRIVABLY CONNECTED TO SAID FIRST EXPANSION TURBINE; A RECIRCULATION CONDUIT FOR COMMUNICATING THE SPACE TO BE CONDITIONED WITH THE INLET OF SAID FIRST COMPRESSOR; A THIRD CONDUIT COMMUNICATING WITH THE OUTLET OF SAID COMPRESSOR AND WITH SAID SECOND CONDUIT; AND MEANS CONDUITLY ASSOCIATED WITH SAID THIRD CONDUIT FOR COOLING THE AIR PASSING THERETHROUGH AND COMPRISING A SECOND EXPANSION TURBINE, A SECOND COMPRESSOR AND A HEAT EXCHANGER, SAID SECOND COMPRESSOR BEING CONNECTED TO ITS INLET SIDE OF SAID THIRD CONDUIT LEADING FROM SAID FIRST COMPRESSOR, THE OUTLET FROM SAID SECOND COMPRESSOR BEING CONNECTED THROUGH SAID HEAT EXCHANGER TO THE INLET OF SAID SECOND EXPANSION TURBINE, THE OUTLET OF SAID SECOND EXPANSION BEING CONDUITLY CONNECTED TO SAID THIRD CONDUIT LEADING TO SAID SECOND CONDUIT, AND SAID SECOND COMPRESSOR BEING DRIVABLY CONNECTED TO SAID SECOND EXPANSION TURBINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |