US3190343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the spray drying of heat sensitive liquiform materials
Assignee: Birs Beteiligungs- und Verwaltungsgesellschaft AG
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Filing: 1962-09-28
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Granted: 1965-06-22
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Expires: 1982-09-28
Abstract
No abstract record available.
Inventors
- 👤 Hussmann Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:54
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/16; B01D1/18; A; A23; A23F; A23F5/00; A23F5/24; A23F5/28; A23F5/34; A23F5/46; A23F5/48; A23F5/486; Y; Y10; Y10S; Y10S159/00; Y10S159/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
THE METHOD OF SUPPLYING, FOR AT LEAST ONE DIURNAL PERIOD, A CONTINUOUS SUPPLY OF AIR INTO A DRYING TOWER HAVING A JACKET FORMED BY AN INNER AND AN OUTER TOWER WALL DEFINING A SPACE THEREBETWEEN, SAID SPACE BEING DIVIDED INT A FIRST AND A SECOND REGION BY AN INTERMEDIATE WALL AND THE WALLS OF THE FIRST REGION BEING PRECONDITIONED BY HEAT-EXCHANGE WITH ATMOSPHERIC AIR AT ONE TEMPERATURE WHICH COMPRISES (A) DURING THE DAY COOLING ATMOSPHERIC AIR HAVING A HIGHER TEMPERATURE IN THE FIRST REGION BY RELEASING ITS HEAT TO THE WALLS OF THE FIRST REGION; THEN DEHUMIDIFYING THE AIR BY FEEDING IT THROUGH A DEHUMIDIFYING ZONE; THEN PASSING THE DEHUMIDIFIED AIR THROUGH THE SECOND REGION TO EXCHANGE HEAT WITH THE WALLS THEREOF, AND THEN FEEDING THE DEHUMIDIFIED AIR HAVING A TEMPERATURE NOT EXCEEDING ABOUT 60* C. INTO THE DRYING TOWER CONTINUOUSLY, AND (B) DURING THE NIGHT HEATING ATMOSPHERIC AIR HAVING A LOWER TEMPERATURE IN THE FIRST REGION BY ABSORBING HEAT FROM THE WALLS OF THE FIRST REGION; THEN DEHUMIDIFING THE AIR BY FEEDING IT THROUGH A DEHUMIDIFYING ZONE; THEN PASSING THE DEHUMIDIFIED AIR THROUGH THE SECOND REGION TO EXCHANGE HEAT WITH THE WALLS THEREOF; AND FEEDING THE DEHUMIDIFIED AIR HAVING A TEMPERATURE NOT EXCEEDING ABOUT 60* C. INTO THE DRYING TOWER CONTINUOUSLY.
Claim 2
Independent Claim
212 words
THE METHOD OF SUPPLYING, FOR AT LEAST ONE DIURNAL PERIOD, A CONTINUOUS SUPPLY OF AIR INTO A DRYING TOWER HAVING A JACKET FORMED BY AN INNER AND AN OUTER TOWER WALL DEFINING A SPACE THEREBETWEEN, SAID SPACE BEING DIVIDED INT A FIRST AND A SECOND REGION BY AN INTERMEDIATE WALL AND THE WALLS OF THE FIRST REGION BEING PRECONDITIONED BY HEAT-EXCHANGE WITH ATMOSPHERIC AIR AT ONE TEMPERATURE WHICH COMPRISES (A) DURING THE DAY COOLING ATMOSPHERIC AIR HAVING A HIGHER TEMPERATURE IN THE FIRST REGION BY RELEASING ITS HEAT TO THE WALLS OF THE FIRST REGION; THEN DEHUMIDIFYING THE AIR BY FEEDING IT THROUGH A DEHUMIDIFYING ZONE; THEN PASSING THE DEHUMIDIFIED AIR THROUGH THE SECOND REGION TO EXCHANGE HEAT WITH THE WALLS THEREOF, AND THEN FEEDING THE DEHUMIDIFIED AIR HAVING A TEMPERATURE NOT EXCEEDING ABOUT 60* C. INTO THE DRYING TOWER CONTINUOUSLY, AND (B) DURING THE NIGHT HEATING ATMOSPHERIC AIR HAVING A LOWER TEMPERATURE IN THE FIRST REGION BY ABSORBING HEAT FROM THE WALLS OF THE FIRST REGION; THEN DEHUMIDIFING THE AIR BY FEEDING IT THROUGH A DEHUMIDIFYING ZONE; THEN PASSING THE DEHUMIDIFIED AIR THROUGH THE SECOND REGION TO EXCHANGE HEAT WITH THE WALLS THEREOF; AND FEEDING THE DEHUMIDIFIED AIR HAVING A TEMPERATURE NOT EXCEEDING ABOUT 60* C. INTO THE DRYING TOWER CONTINUOUSLY.
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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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |