US3138441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas purification apparatus
Assignee: Svenska Flaktfabriken AB
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Filing: 1961-05-10
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Granted: 1964-06-23
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Expires: 1981-05-10
Abstract
No abstract record available.
Inventors
- 👤 Krantz Evert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:43
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/04; B01D45/08; B01D45/10; B01D47/00; B01D47/10; B01J; B01J4/00; B01J4/001; Y; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A GAS PURIFICATIN APPARATUS INCLUDING A SEPARATOR AND A VENTURI-SHAPED GAS INLET CHANNEL, SAID INLET CHANNEL HAVING A CONVERGING INLET PORITON TERMINATING IN A REDUCED THROAT PORTION AND A DIVERGING OUTLET PORTION EXTENDING FROM SAID THROAT AND TERMINATING IN SAID SEPARATOR, MEANS TO SUPPLY WASHING LIQUID AT THE UPPER PART OF SAID INLET PORTION TO FORM A DOWNFLOWING FILM OF WASHING LIQUID ON THE CONVERGING WALL THEREOF AND SHOULDER MEANS IN SAID THROAT SECTION TO DISPERSE AND ADMIX SAID DOWNFLOWING LIQUID INTO THE GAS FLOWING THERETHROUGH, MEANS DEFINING SLOTS IN SAID THROAT DOWNSTREAM OF SAID SHOULDER MEANS, A LIQUID SUPPLY TANK SURROUNDING SAID THROAT TO INTRODUCE WASHING LIQUID INTO THE OUTLET PORTION OF SAID CHANNEL THROUGH SAID SLOTS, MEANS TO SUPPLY LIQUID
Claim 2
Dependent Claim
122 words
A GAS PURIFICATIN APPARATUS INCLUDING A SEPARATOR AND A VENTURI-SHAPED GAS INLET CHANNEL, SAID INLET CHANNEL HAVING A CONVERGING INLET PORITON TERMINATING IN A REDUCED THROAT PORTION AND A DIVERGING OUTLET PORTION EXTENDING FROM SAID THROAT AND TERMINATING IN SAID SEPARATOR, MEANS TO SUPPLY WASHING LIQUID AT THE UPPER PART OF SAID INLET PORTION TO FORM A DOWNFLOWING FILM OF WASHING LIQUID ON THE CONVERGING WALL THEREOF AND SHOULDER MEANS IN SAID THROAT SECTION TO DISPERSE AND ADMIX SAID DOWNFLOWING LIQUID INTO THE GAS FLOWING THERETHROUGH, MEANS DEFINING SLOTS IN SAID THROAT DOWNSTREAM OF SAID SHOULDER MEANS, A LIQUID SUPPLY TANK SURROUNDING SAID THROAT TO INTRODUCE WASHING LIQUID INTO THE OUTLET PORTION OF SAID CHANNEL THROUGH SAID SLOTS, MEANS TO SUPPLY LIQUID
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |