US2705137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt drier heated by radiation
Assignee: Bayer AG
•
Filing: 1950-12-13
•
Granted: 1955-03-29
•
Expires: 1970-12-13
Abstract
No abstract record available.
Inventors
- 👤 Haltmeier Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:21
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/02; F26B17/023; F26B5/00; F26B5/04; F26B5/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
VACUUM DRYING APPARATUS COMPRISING WALLS FORMING A CHAMBER, MEANS FOR EVACUATING SAID CHAMBER, A HORIZONTAL BELT CONVEYOR IN SAID CHAMBER, MEANS AT ONE END OF SAID CHAMBER FOR FEEDING MATERIAL TO THE UPPER RUN OF SAID BELT CONVEYOR, A PLURALITY OF HEAT RADIATING TUBES ADAPTED TO BE HEATED BY COMBUSTION GASES, SAID TUBES BEING ADAPTED TO BE HEATED BY COMBUSTION GASES, SAID TUBES BEING HAVING INLETS AND OUTLETS PROJECTING THROUGH THE TOP OF SAID CHAMBER, BURNERS POSITIONED ADJACENT THE INLETS OF SAID RADIATING TUBES, AND MEANS FOR WITHDREAWING THE COMBUSTION GASES FROM THE OUTLETS OF SAID TUBES, SAID INLETS
Claim 2
Dependent Claim
99 words
VACUUM DRYING APPARATUS COMPRISING WALLS FORMING A CHAMBER, MEANS FOR EVACUATING SAID CHAMBER, A HORIZONTAL BELT CONVEYOR IN SAID CHAMBER, MEANS AT ONE END OF SAID CHAMBER FOR FEEDING MATERIAL TO THE UPPER RUN OF SAID BELT CONVEYOR, A PLURALITY OF HEAT RADIATING TUBES ADAPTED TO BE HEATED BY COMBUSTION GASES, SAID TUBES BEING ADAPTED TO BE HEATED BY COMBUSTION GASES, SAID TUBES BEING HAVING INLETS AND OUTLETS PROJECTING THROUGH THE TOP OF SAID CHAMBER, BURNERS POSITIONED ADJACENT THE INLETS OF SAID RADIATING TUBES, AND MEANS FOR WITHDREAWING THE COMBUSTION GASES FROM THE OUTLETS OF SAID TUBES, SAID INLETS
References Cited (Backward Citations)
US1277895A
Cited
US1167029A
Cited
US1250496A
Cited
US1358431A
Cited
US1547156A
Cited
US1580658A
Cited
US1988677A
Cited
US1933819A
Cited
US2047471A
Cited
US2132897A
Cited
US2235324A
Cited
US2420399A
Cited
FR883178A
Cited
US2349300A
Cited
US2528476A
Cited
US2435503A
Cited
US2391441A
Cited
US2515098A
Cited
US2533125A
Cited
US2480248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-28 | 1958-09-27 | 1959-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-28 | 1962-09-27 | 1963-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-28 | 1966-09-27 | 1967-03-29 | $7700.00 | Window Closed / Lapsed |