Patent US3263400A successfully refreshed from Google Patents.
US3263400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air treatment
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-07-16
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Granted: 1966-08-02
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Ronald C Hoke
- 👤 James R Felix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:44
CPC Classifications
A; A62; A62B; A62B13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
230 words
A METHOD OF VENTILATING A REGION COMPRISING AN ENCLOSED SPACE BY TRANSFERRING GAS FROM SAID REGION TO A SECOND REGION OF A DIFFERENT TEMPERATURE WITH SUBSTANTIALLY NO CHANGE IN THE TEMPERATURE OF THE REGION COMPRISING AN ENCLOSED SPACE WHICH COMPRISES IN COMBINATION: (A) FLOWING GAS CYCLICALLY THROUGH A FIRST HEAT TRANSFER ZONE WHICH ZONE PROVIDES A PASSAGE BETWEEN SAID REGIONS, SAID ZONE BEING CHARACTERIZED BY A HEAT CAPACITY GREATER THAN THE TOTAL OF SAID GAS FLOWING THROUGH IT PER CYCLE; (B) SIMULTANEOUSLY FLOWING GAS CYCLICALLY THROUGH A SECOND HEAT TRANSFER ZONE WHICH SECOND ZONE PROVIDES A PASSAGE BETWEEN SAID REGIONS, SAID SECOND ZONE BEING CHARACTERIZED BY A HEAT CAPACITY GREATER THAN THE TOTAL OF SAID GAS FLOWING THROUGH IT PER CYCLE; (C) CYCLICALLY ALTERNATING THE DIRECTION OF FLOW OF GAS THROUGH SAID FIRST ZONE AND SAID SECOND ZONE, WHEREIN THE FLOW OF GAS THROUGH THE ZONES IS SUCH THAT SUBSTANTIALLY NO BREAKTHROUGH OF THE HEAT WITHIN SAID ZONES OCCURS AND WHEREIN FLOW THROUGH A ZONE INTO ONE OF SAID REGIONS IS ACCOMPANIED BY FLOW OUT OF THE SAME REGION THROUGH THE OTHER ZONE; (D) CONVEYING THE FLOW OF GAS OUT OF SAID REGION COMPRISING AN ENCLOSED SPACED INTO A THIRD REGION WHILE NOT PERMITTING GAS FROM SAID SECOND REGION FROM ENTERING SAID THIRD REGION AND NOT PERMITTING GAS FROM SAID THIRD REGION TO ENTER SAID REGION COMPRISING AN ENCLOSED SPACE.
Claim 2
Independent Claim
230 words
A METHOD OF VENTILATING A REGION COMPRISING AN ENCLOSED SPACE BY TRANSFERRING GAS FROM SAID REGION TO A SECOND REGION OF A DIFFERENT TEMPERATURE WITH SUBSTANTIALLY NO CHANGE IN THE TEMPERATURE OF THE REGION COMPRISING AN ENCLOSED SPACE WHICH COMPRISES IN COMBINATION: (A) FLOWING GAS CYCLICALLY THROUGH A FIRST HEAT TRANSFER ZONE WHICH ZONE PROVIDES A PASSAGE BETWEEN SAID REGIONS, SAID ZONE BEING CHARACTERIZED BY A HEAT CAPACITY GREATER THAN THE TOTAL OF SAID GAS FLOWING THROUGH IT PER CYCLE; (B) SIMULTANEOUSLY FLOWING GAS CYCLICALLY THROUGH A SECOND HEAT TRANSFER ZONE WHICH SECOND ZONE PROVIDES A PASSAGE BETWEEN SAID REGIONS, SAID SECOND ZONE BEING CHARACTERIZED BY A HEAT CAPACITY GREATER THAN THE TOTAL OF SAID GAS FLOWING THROUGH IT PER CYCLE; (C) CYCLICALLY ALTERNATING THE DIRECTION OF FLOW OF GAS THROUGH SAID FIRST ZONE AND SAID SECOND ZONE, WHEREIN THE FLOW OF GAS THROUGH THE ZONES IS SUCH THAT SUBSTANTIALLY NO BREAKTHROUGH OF THE HEAT WITHIN SAID ZONES OCCURS AND WHEREIN FLOW THROUGH A ZONE INTO ONE OF SAID REGIONS IS ACCOMPANIED BY FLOW OUT OF THE SAME REGION THROUGH THE OTHER ZONE; (D) CONVEYING THE FLOW OF GAS OUT OF SAID REGION COMPRISING AN ENCLOSED SPACED INTO A THIRD REGION WHILE NOT PERMITTING GAS FROM SAID SECOND REGION FROM ENTERING SAID THIRD REGION AND NOT PERMITTING GAS FROM SAID THIRD REGION TO ENTER SAID REGION COMPRISING AN ENCLOSED SPACE.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |