Patent US3230636A successfully refreshed from Google Patents.
US3230636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transfer method and means
Assignee: —
•
Filing: —
•
Granted: 1966-01-25
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Expires: 1983-01-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:27
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/14; F26B13/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
147 words
AN APPARATUS FOR DRYING A FIBROUS WEB TRAVELING ABOUT A ROTATABLE DRYING CYLINDER, COMPRISING A HOOD SUPPORTED ADJACENT THE DRYING CYLINDER AND EXTENDING ABOUT A PORTION OF THE CIRCUMFERENCE THEREOF, AT LEAST ONE PLENUM CHAMBER CONTAINER WITHIN SAID HOOD, AN AIR DUCT LEADING INTO SAID HOOD AND PLENUM CHAMBER, AN AIR OUTLET LEADING FROM SAID HOOD, FOR WITHDRAWING SPENT MOISTURE BEARING AIR FROM SAID HOOD AND FROM THE FIBROUS WEB PASSING ABOUT THE DRYING CYLINDER AND SPACED FROMING TO THE PERIPHERY OF SAID DRYING CYLINDER AND SPACED FROM SAID CYLINDER A DISTANCE OF AT LEAST ONE INCH AND NOT OVER TWO INCHES AND FORMING A BOTTOM WALL OF SAID PLENUM CHAMBER AND HAVING A PLURALITY OF NOZZLE OPENINGS LEADING THERETHROUGH, EACH OF SAID NOZZLE OPENINGS BEING NO LONGER THAN THE THICKNESS OF THE PLATE AND CONSISTING IN AN UNIMPEDED PERFORATION THROUGH SAID PLATE AND HAVING A DI-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |