US3143398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed apparatus for drying, warming and aerating materials
Assignee: Challenge Cook Bros Inc
•
Filing: 1962-09-14
•
Granted: 1964-08-04
•
Expires: 1982-09-14
Abstract
No abstract record available.
Inventors
- 👤 Rassele E Swarthout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:31
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/101; F26B17/00; F26B17/02; F26B17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
240 words
A DEVICE FOR DRYING, WARMING AND AERATING MATERIALS WHICH COMPRISES; A SUBSTANTIALLY AIR-TIGHT MAIN HOUSING HAVING OUTER WALLS, AND HAVING INNER WALLS SPACED FROM SAID OUTER WALLS; PLENUM CHAMBERS MOUNTED ADJACENT THE TOP AND THE BOTTOM OF SAID MAIN HOUSING; MEANS FOR INTRODUCING WARM AIR INTO ONE OF SIAD PLENUM CHAMBERS AND PASSING SAID WARM AIR FROM SAID PLENUM CHAMBER INTO THE INTERIOR OF SAID MAIN HOUSING; MEANS FOR PASSING SAID WARM AIR FROM THE INTERIOR OF SAID MAIN HOUSING INTO THE OTHER OF SAID PLENUM CHAMBERS; MEANS FOR EXHAUSTING WARM AIR FROM THE OTHER OF SAID PLENUM CHAMBERS; A PLURALITY OF POWER-DRIVEN, SUBSTANTIALLY HORIZONTAL CONVEYOR BELT FLIGHTS VERTICALLY SPACED FROM EACH OTHER AND DISPOSED SERIATIM IN SAID MAIN HOUSING IN THE STREAM OF SAID WARM AIR INTERMEDIATE SAID PLENUM CHAMBERS, EACH BELT FLIGHT MOVING IN A DIRECTION OPPOSITE TO THAT OF THE BELT FLIGHT IMMEDIATELY ABOVE IT, THE TOPMOST AND THE LOWERMOST OF SAID BELT FLIGHTS EXTENDING BEYOND SAID MAIN HOUSING; A HORIZONTAL PLATFORM MOUNTED EXTERNALLY OF SAID MAIN HOUSING; AN OPENING IN SAID MAIN HOUSING ALIGNED WITH SAID PLATFORM, THE TOPMOST OF SAID BELT FLIGHTS EXTENDING OVER AND BEING SUPPORTED BY SAID PLATFORM AND PASSING THROUGH SAID OPENING, SAID OPENING ACCOMODATING SAID TOPMOST BELT FLIGHT AND MATERIALS LOADED THEREON; A SECONDARY HOUSING MOUNTED ON SAID PLATFORM AND ON THE MAIN HOUSING, SAID SECONDARY HOUSING ENCLOSING SAID OPENING AND HAVING AN OPEN EXTERNAL END; A TRANSVERSE PLATE DISPOSED IN
Claim 2
Independent Claim
240 words
A DEVICE FOR DRYING, WARMING AND AERATING MATERIALS WHICH COMPRISES; A SUBSTANTIALLY AIR-TIGHT MAIN HOUSING HAVING OUTER WALLS, AND HAVING INNER WALLS SPACED FROM SAID OUTER WALLS; PLENUM CHAMBERS MOUNTED ADJACENT THE TOP AND THE BOTTOM OF SAID MAIN HOUSING; MEANS FOR INTRODUCING WARM AIR INTO ONE OF SIAD PLENUM CHAMBERS AND PASSING SAID WARM AIR FROM SAID PLENUM CHAMBER INTO THE INTERIOR OF SAID MAIN HOUSING; MEANS FOR PASSING SAID WARM AIR FROM THE INTERIOR OF SAID MAIN HOUSING INTO THE OTHER OF SAID PLENUM CHAMBERS; MEANS FOR EXHAUSTING WARM AIR FROM THE OTHER OF SAID PLENUM CHAMBERS; A PLURALITY OF POWER-DRIVEN, SUBSTANTIALLY HORIZONTAL CONVEYOR BELT FLIGHTS VERTICALLY SPACED FROM EACH OTHER AND DISPOSED SERIATIM IN SAID MAIN HOUSING IN THE STREAM OF SAID WARM AIR INTERMEDIATE SAID PLENUM CHAMBERS, EACH BELT FLIGHT MOVING IN A DIRECTION OPPOSITE TO THAT OF THE BELT FLIGHT IMMEDIATELY ABOVE IT, THE TOPMOST AND THE LOWERMOST OF SAID BELT FLIGHTS EXTENDING BEYOND SAID MAIN HOUSING; A HORIZONTAL PLATFORM MOUNTED EXTERNALLY OF SAID MAIN HOUSING; AN OPENING IN SAID MAIN HOUSING ALIGNED WITH SAID PLATFORM, THE TOPMOST OF SAID BELT FLIGHTS EXTENDING OVER AND BEING SUPPORTED BY SAID PLATFORM AND PASSING THROUGH SAID OPENING, SAID OPENING ACCOMODATING SAID TOPMOST BELT FLIGHT AND MATERIALS LOADED THEREON; A SECONDARY HOUSING MOUNTED ON SAID PLATFORM AND ON THE MAIN HOUSING, SAID SECONDARY HOUSING ENCLOSING SAID OPENING AND HAVING AN OPEN EXTERNAL END; A TRANSVERSE PLATE DISPOSED IN
References Cited (Backward Citations)
US453562A
Cited
GB190407010A
Cited
US1797335A
Cited
US2018505A
Cited
US2043265A
Cited
US2758388A
Cited
US2995829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |