US2546251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for drying yeast
Assignee: INST DIVI THOMAE FOUNDATION
•
Filing: 1947-02-03
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Granted: 1951-03-27
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Expires: 1967-02-03
Abstract
No abstract record available.
Inventors
- 👤 Stanley L Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:01
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A PROCESS FOR PRODUCING DRY YEAST SOLIDS FROM DILUTE YEAST SLURRIES CONTAINING NOT MORE THAN ABOUT 18% SOLIDS WHICH COMPRISES PARTIALLY CONCENTRATING THE SLURRY TO A SOLIDS CONTENT IN THE APPROXIMATE RANGE OF 20-45% BY MOVING A FILM THEREOF WITH AGITATION OVER A HEAT EVAPORATING SURFACE, THE MAXIMUM DEPTH OF FILM BEING NOT MORE THAN 0.3 INCH AND THE RATE OF HEAT INPUT TO SAID FILM BEING SUFFICIENT TO EVAPORATE AT LEAST 35 LBS. OF WATER PER HOUR PER SQUARE FOOT OF FILM, THEN FURTHER DRYING THE HOT PARTIALLY CONCENTRATED STILL FLOWABLE SLURRY BY FORMING A FILM THEREOF ON THE HEATED SURFACE OF A ROTATING A FILM THEREOF ON FINALLY REMOVING THE DRIED SOLIDS FROM THE DRUM SURFACE.
Claim 2
Dependent Claim
118 words
A PROCESS FOR PRODUCING DRY YEAST SOLIDS FROM DILUTE YEAST SLURRIES CONTAINING NOT MORE THAN ABOUT 18% SOLIDS WHICH COMPRISES PARTIALLY CONCENTRATING THE SLURRY TO A SOLIDS CONTENT IN THE APPROXIMATE RANGE OF 20-45% BY MOVING A FILM THEREOF WITH AGITATION OVER A HEAT EVAPORATING SURFACE, THE MAXIMUM DEPTH OF FILM BEING NOT MORE THAN 0.3 INCH AND THE RATE OF HEAT INPUT TO SAID FILM BEING SUFFICIENT TO EVAPORATE AT LEAST 35 LBS. OF WATER PER HOUR PER SQUARE FOOT OF FILM, THEN FURTHER DRYING THE HOT PARTIALLY CONCENTRATED STILL FLOWABLE SLURRY BY FORMING A FILM THEREOF ON THE HEATED SURFACE OF A ROTATING A FILM THEREOF ON FINALLY REMOVING THE DRIED SOLIDS FROM THE DRUM SURFACE.
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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) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |