Patent US3076269A successfully refreshed from Google Patents.
US3076269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain drier-cooler
Assignee: DAVENPORT MACHINE AND FOUNDRY
•
Filing: 1960-10-10
•
Granted: 1963-02-05
•
Expires: 1980-10-10
Abstract
No abstract record available.
Inventors
- 👤 Hagen Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:43
CPC Classifications
F; F26; F26B; F26B11/00; F26B11/02; F26B11/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN GRAIN DRYING AND COOLING MEANS, A DRUM OF SUBSTANTIALLY UNIFORM INTERIOR DIAMETER MOUNTED FOR ROTATION ABOUT A SUBSTANTIALLY HORIZONTAL AXIS, MEANS SEPARATING SAID DRUM INTERIORLY INTO A DRYING SECTION AND A COOLING SECTION, SAID SEPARATING MEANS COMPRISING AN IMPERFORATE SEPARATOR DISPOSED WITHIN SAID DRUM IN SUBSTANTIALLY CONCENTRIC SPACED RELATION THERETO AND REMOTE FROM BOTH ENDS THEREOF AND A SUBSTANTIALLY HELICAL VANE BRIDGING THE SPACE BETWEEN AND SECURED TO SAID SEPARATOR AND DRUM, SAID VANE EXTENDING ABOUT SAID SEPARATOR FOR AT LEAST THE FULL CIRCUMFERENCE THEREOF AND SAID SECTIONS BEING RESPECTIVELY OF A LENGTH SUBSTANTIALLY GREATER THAN SAID SEPARATOR, CLOSURE MEANS FOR THE ENDS OF SAID DRUM, A HEATED AIR CONDUIT EXTENDING THROUGH THE DRYING SECTION END CLOSURE MEANS COAXIALLY WITH SAID DRUM AND THROUGH
Claim 2
Dependent Claim
125 words
IN GRAIN DRYING AND COOLING MEANS, A DRUM OF SUBSTANTIALLY UNIFORM INTERIOR DIAMETER MOUNTED FOR ROTATION ABOUT A SUBSTANTIALLY HORIZONTAL AXIS, MEANS SEPARATING SAID DRUM INTERIORLY INTO A DRYING SECTION AND A COOLING SECTION, SAID SEPARATING MEANS COMPRISING AN IMPERFORATE SEPARATOR DISPOSED WITHIN SAID DRUM IN SUBSTANTIALLY CONCENTRIC SPACED RELATION THERETO AND REMOTE FROM BOTH ENDS THEREOF AND A SUBSTANTIALLY HELICAL VANE BRIDGING THE SPACE BETWEEN AND SECURED TO SAID SEPARATOR AND DRUM, SAID VANE EXTENDING ABOUT SAID SEPARATOR FOR AT LEAST THE FULL CIRCUMFERENCE THEREOF AND SAID SECTIONS BEING RESPECTIVELY OF A LENGTH SUBSTANTIALLY GREATER THAN SAID SEPARATOR, CLOSURE MEANS FOR THE ENDS OF SAID DRUM, A HEATED AIR CONDUIT EXTENDING THROUGH THE DRYING SECTION END CLOSURE MEANS COAXIALLY WITH SAID DRUM AND THROUGH
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |