US3224170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas purification apparatus
Assignee: Idemitsu Kosan Co Ltd
•
Filing: 1963-03-18
•
Granted: 1965-12-21
•
Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Iwanaga Mitsuji
- 👤 Idemitsu Hiroshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:42
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/02; B01D47/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A PURIFICATION APPARATUS FOR CITY INDOOR AIR, FLUE GASES, AND THE LIKE COMPRISING A PURIFICATION LIQUID TANK INCOMPLETELY FILLED WITH A PURIFICATIONLIQUID TANK INCOMPLETELY FILLED WITH A PURIFICATION LIQUID, A PURIFICATION TUBE WHICH HAS AN UPSTRAM END AND A DOWNSTREAM OPEN END AND IS DISPOSED IN THE SAID PURIFICATION LIQUID BELOW THE SAID SURFACE LEVEL WITH A SLIGHTLY RISING INCLINATION FROM ITS SAID UPSTREAM END TOWARD ITS SAID DOWNSTREAM OPEN END, A GAS INJECTION NOZZLE INSERTED CONCENTRICALLY WITHIN THE SAID UPSTREAM END OF THE SAID PURIFICATION TUBE, MEANS FOR INJECTING A GAS TO BE PURIFIED INTO THE SAID PURIFICATION TUBE, A PARTITION MEANS PROVIDED WITH REVERSE-FLOW-PREVENTIVE VALVE MEANS AND DISPOSED ON SAID GAS INJECTION NOZZLE ABOUT ITS OUTER PERIPHERYL SO AS TO CLOSE THE SPACE BETWEEN THE SAID NOZZLE AND THE INNER SURFACE OF THE SAID UPSTREAM END OF THE SAID PURIFICATION TUBE, A GSA TRANSFER SYSTEM PROVIDED WITH A BLOWER AND A FRESH AIR INLET AND ADAPTED TO SUP-
Claim 2
Dependent Claim
160 words
A PURIFICATION APPARATUS FOR CITY INDOOR AIR, FLUE GASES, AND THE LIKE COMPRISING A PURIFICATION LIQUID TANK INCOMPLETELY FILLED WITH A PURIFICATIONLIQUID TANK INCOMPLETELY FILLED WITH A PURIFICATION LIQUID, A PURIFICATION TUBE WHICH HAS AN UPSTRAM END AND A DOWNSTREAM OPEN END AND IS DISPOSED IN THE SAID PURIFICATION LIQUID BELOW THE SAID SURFACE LEVEL WITH A SLIGHTLY RISING INCLINATION FROM ITS SAID UPSTREAM END TOWARD ITS SAID DOWNSTREAM OPEN END, A GAS INJECTION NOZZLE INSERTED CONCENTRICALLY WITHIN THE SAID UPSTREAM END OF THE SAID PURIFICATION TUBE, MEANS FOR INJECTING A GAS TO BE PURIFIED INTO THE SAID PURIFICATION TUBE, A PARTITION MEANS PROVIDED WITH REVERSE-FLOW-PREVENTIVE VALVE MEANS AND DISPOSED ON SAID GAS INJECTION NOZZLE ABOUT ITS OUTER PERIPHERYL SO AS TO CLOSE THE SPACE BETWEEN THE SAID NOZZLE AND THE INNER SURFACE OF THE SAID UPSTREAM END OF THE SAID PURIFICATION TUBE, A GSA TRANSFER SYSTEM PROVIDED WITH A BLOWER AND A FRESH AIR INLET AND ADAPTED TO SUP-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |