Patent US2869152A successfully refreshed from Google Patents.
Patent US3269451A successfully refreshed from Google Patents.
US3269451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray drying process and apparatus therefor
Assignee: Kalle GmbH and Co KG
•
Filing: 1963-10-10
•
Granted: 1966-08-30
•
Expires: 1983-10-10
Abstract
No abstract record available.
Inventors
- 👤 Mehlo Walter
- 👤 Hohmann Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:29
CPC Classifications
A; A23; A23F; A23F3/00; A23F3/16; A23F3/22; A23F3/28; A23C; A23C1/00; A23C1/04; A23F5/00; A23F5/24; A23F5/28; A23F5/34; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/10; A23L2/102; B; B01; B01D; B01D1/00; B01D1/16; B01D1/18; Y; Y10; Y10S; Y10S159/00; Y10S159/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A SPARY-DRYING PROCESS WHICH COMPRISES ATOMIZING A LIQUID-CONTAINING MATERIAL TO BE DRIED AND FLOWING DOWNWARDLY, SUBJECTING THE ATOMIZED MATERIAL TO RADIANT HEAT IN A HEATING ZONE TO FORM A MIXTURE OF VAPORS AND SOLID PARTICLES, AND CONTACTING THE MIXTURE DOWNSTREAM FROM THE HEATING ZONE WITH A GAS CURRENT, A MINOR PORTION OF WHICH FLOWS UPWARDLY WITH THE VAPORS AND A MAJOR PORTION OF WHICH FLOWS DOWNWARDLY WITH THE SOLID PARTICLES.
Claim 2
Dependent Claim
70 words
A SPARY-DRYING PROCESS WHICH COMPRISES ATOMIZING A LIQUID-CONTAINING MATERIAL TO BE DRIED AND FLOWING DOWNWARDLY, SUBJECTING THE ATOMIZED MATERIAL TO RADIANT HEAT IN A HEATING ZONE TO FORM A MIXTURE OF VAPORS AND SOLID PARTICLES, AND CONTACTING THE MIXTURE DOWNSTREAM FROM THE HEATING ZONE WITH A GAS CURRENT, A MINOR PORTION OF WHICH FLOWS UPWARDLY WITH THE VAPORS AND A MAJOR PORTION OF WHICH FLOWS DOWNWARDLY WITH THE SOLID PARTICLES.
References Cited (Backward Citations)
US806747A
Cited
US1166225A
Cited
US1133051A
Cited
US1829477A
Cited
US1877648A
Cited
US2344754A
Cited
US2473539A
Cited
FR986238A
Cited
US2699822A
Cited
US2842193A
Cited
US2873799A
Cited
US2953457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |