US3402479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treating tobacco
Assignee: Körber AG
•
Filing: 1966-11-17
•
Granted: 1968-09-24
•
Expires: 1986-11-17
Abstract
No abstract record available.
Inventors
- 👤 Hohm Reinhard
- 👤 Kuehn Guenther
- 👤 Wochnowski Waldemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:38
CPC Classifications
A; A24; A24B; A24B3/00; A24B3/12; C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
APPARATUS FOR TREATING NITROGEN-RICH TOBACCO BY CONTACT WITH CONDITIONED AIR, COMPRISING A HEATING CHAMBER; CONVEYOR MEANS FOR TRANSPORTING TOBACCO THROUGH SAID CHAMBER; CIRCULATING MEANS FOR MAINTAINING TOBACCO IN SAID CHAMBER IN INTIMATE CONTACT WITH A CURRENT OF AIR; FIRST CONDITIONING MEANS FOR MAINTAINING THE MOISTURE CONTENT OF SAID CURRENT OF AIR WITHIN A RANGE AT WHICH A CONDITION OF SUBSTANTIAL HYGROSCOPIC EQUILIBRIUM IS ESTABLISHED BETWEEN AIR AND TOBACCO IN SAID CHAMBER; AND SECOND CONDITIONING MEANS FOR MAINTIANING SAID CURRENT OF AIR AT A TEMPERATURE AT WHICH AIR AND TOBACCO EXCHANGE SUFFICIENT HEAT TO RAISE THE TEMPERATURE OF TABACCO TO A VALUE AT WHICH THE TOBACCO IS RELIEVED OF NITROGEN.
Claim 2
Dependent Claim
109 words
APPARATUS FOR TREATING NITROGEN-RICH TOBACCO BY CONTACT WITH CONDITIONED AIR, COMPRISING A HEATING CHAMBER; CONVEYOR MEANS FOR TRANSPORTING TOBACCO THROUGH SAID CHAMBER; CIRCULATING MEANS FOR MAINTAINING TOBACCO IN SAID CHAMBER IN INTIMATE CONTACT WITH A CURRENT OF AIR; FIRST CONDITIONING MEANS FOR MAINTAINING THE MOISTURE CONTENT OF SAID CURRENT OF AIR WITHIN A RANGE AT WHICH A CONDITION OF SUBSTANTIAL HYGROSCOPIC EQUILIBRIUM IS ESTABLISHED BETWEEN AIR AND TOBACCO IN SAID CHAMBER; AND SECOND CONDITIONING MEANS FOR MAINTIANING SAID CURRENT OF AIR AT A TEMPERATURE AT WHICH AIR AND TOBACCO EXCHANGE SUFFICIENT HEAT TO RAISE THE TEMPERATURE OF TABACCO TO A VALUE AT WHICH THE TOBACCO IS RELIEVED OF NITROGEN.
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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |