US3319346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for heat treating moisture bearing particles
Assignee: Individual
•
Filing: 1964-09-29
•
Granted: 1967-05-16
•
Expires: 1984-09-29
Abstract
No abstract record available.
Inventors
- 👤 John E Schuster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:30
CPC Classifications
F; F26; F26B; F26B3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF HEAT TREATING MOISTURE BEARING PARTICLES WHICH COMPRISES HEATING THE PARTICLES IN A FIRST ZONE TO A MILD TEMPERATURE BELOW THE BOILING POINT OF WATER, IN THE FIRST ZONE SURROUNDING THE PARTICLES, GENERALLY MAINTAINING A VAPOR PRESSURE AT LEAST AS GREAT AS THE VAPOR PRESSURE OF HEATING GAS WHEN SATURATED AND AT THE TEMPERATURE OF THE HEATED PARTICLES IN THE FIRST ZONE, AND THEN FURTHER HEATING SAID PARTICLES IN A SECOND ZONE TO A TEMPERATURE SUBSTANTIALLY ABOVE THE BOILING POINT OF WATER, SAID METHOD BEING CHARACTERIZED BY HEATING OF PARTICLES IN THE FIRST ZONE WITHOUT SUBSTANTIAL EVAPORATION OF MOISTURE FROM SAID PARTICLES.
Claim 2
Independent Claim
104 words
THE METHOD OF HEAT TREATING MOISTURE BEARING PARTICLES WHICH COMPRISES HEATING THE PARTICLES IN A FIRST ZONE TO A MILD TEMPERATURE BELOW THE BOILING POINT OF WATER, IN THE FIRST ZONE SURROUNDING THE PARTICLES, GENERALLY MAINTAINING A VAPOR PRESSURE AT LEAST AS GREAT AS THE VAPOR PRESSURE OF HEATING GAS WHEN SATURATED AND AT THE TEMPERATURE OF THE HEATED PARTICLES IN THE FIRST ZONE, AND THEN FURTHER HEATING SAID PARTICLES IN A SECOND ZONE TO A TEMPERATURE SUBSTANTIALLY ABOVE THE BOILING POINT OF WATER, SAID METHOD BEING CHARACTERIZED BY HEATING OF PARTICLES IN THE FIRST ZONE WITHOUT SUBSTANTIAL EVAPORATION OF MOISTURE FROM SAID PARTICLES.
References Cited (Backward Citations)
US2119615A
Cited
US2816372A
Cited
US2580235A
Cited
US2750273A
Cited
US2997096A
Cited
US3100106A
Cited
US3214844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |