US3149930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drum drying apparatus
Assignee: Individual
•
Filing: 1960-12-01
•
Granted: 1964-09-22
•
Expires: 1980-12-01
Abstract
No abstract record available.
Inventors
- 👤 Hans J Behncke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:29
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/14; F26B13/16; F26B13/24; F26B13/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
APPARATUS FOR DRYING MATERIALS IN SHEET FORM, INCLUDING A ROTATABLE DRYING DRUM, A ROTATABLE APERTURES PRESSURE ROLL, SAID DRUM AND PRESSURE ROLL BEING IN PERIPHERAL PRESSURE RELATION WITH ONE ANOTHER, ALLOWING THE SHEET OF MATERIAL TO BE DRIED TO BE FED BETWEEN THE DRYING DRUM AND THE PRESSURE ROLL, AND AIR SUPPLY LINE ON THE OUTSIDE OF THE PRESSURE ROLL, LEADING TOWARD AND TERMINATING NEAR THE SHELL OF THE PRESSURE ROLL, A CONDUIT FOR AIR WITHIN THE PRESSURE ROLL, THE CONDUIT HAVING ONE END REGISTER WITH SAID TERMINATING END OF THE SUPPLY LINE, AND ITS OTHER END DIRECTED TOWARD THE SHEET MATERIAL AT A POINT NEAR AFTER THE PASSAGE THEREOF BETWEEN THE DRYING DRUM AND THE PRESSURE ROLL.
Claim 2
Dependent Claim
118 words
APPARATUS FOR DRYING MATERIALS IN SHEET FORM, INCLUDING A ROTATABLE DRYING DRUM, A ROTATABLE APERTURES PRESSURE ROLL, SAID DRUM AND PRESSURE ROLL BEING IN PERIPHERAL PRESSURE RELATION WITH ONE ANOTHER, ALLOWING THE SHEET OF MATERIAL TO BE DRIED TO BE FED BETWEEN THE DRYING DRUM AND THE PRESSURE ROLL, AND AIR SUPPLY LINE ON THE OUTSIDE OF THE PRESSURE ROLL, LEADING TOWARD AND TERMINATING NEAR THE SHELL OF THE PRESSURE ROLL, A CONDUIT FOR AIR WITHIN THE PRESSURE ROLL, THE CONDUIT HAVING ONE END REGISTER WITH SAID TERMINATING END OF THE SUPPLY LINE, AND ITS OTHER END DIRECTED TOWARD THE SHEET MATERIAL AT A POINT NEAR AFTER THE PASSAGE THEREOF BETWEEN THE DRYING DRUM AND THE PRESSURE ROLL.
References Cited (Backward Citations)
US1755066A
Cited
US1698818A
Cited
US2061976A
Cited
US2209760A
Cited
US2919495A
Cited
US2784652A
Cited
US2952033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |