Patent US3153378A successfully refreshed from Google Patents.
US3153378A
Expired / Lapsed
US
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Method of calendering
Assignee: Individual
•
Filing: 1963-10-07
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Granted: 1964-10-20
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Benjamin J H Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:15
CPC Classifications
D; D21; D21G; D21G1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A METHOD FOR GLOSS CALENDERING A WEB OF INK-RECEPTIVE PAPER HAVING A SUBSTANTIAL MOISTURE CONTENT, SAID METHOD COMPRISING NIPPING THE PAPER BETWEEN A HEATED, POSITIVELY DRIVEN SMOOTH METAL MASTER ROLL AND AT LEAST ONE RESILIENT AUXILARY ROLL FRICTIONALLY DRIVEN BY SAID MASTER ROLL AT ESSENTIALLY THE SAME PERIPHERAL SPEED AS THE MASTER ROLL, MAINTAINING A NIP PRESSURE OF FROM ABOUT 180 TO ABOUT 1100 POUNDS PER LINEAL INCH, MAINTAINING THE MASTER ROLL AT A TEMPERATURE OF AT LEAST 250*F., AND DRIVING THE MASTER ROLL AT A PERIPHERAL SPEED OF AT LEST ABOUT 525 FEET PER MINUTE SO AS T VAPORIZE AT LEAST MOST OF THE MOISTURE CONTENT OF THE PAPER SOLELY BY CONTACT WITH SAID HEATED MASTER ROLL WITHOUT CHARRING OF THE PAPER.
Claim 2
Independent Claim
123 words
A METHOD FOR GLOSS CALENDERING A WEB OF INK-RECEPTIVE PAPER HAVING A SUBSTANTIAL MOISTURE CONTENT, SAID METHOD COMPRISING NIPPING THE PAPER BETWEEN A HEATED, POSITIVELY DRIVEN SMOOTH METAL MASTER ROLL AND AT LEAST ONE RESILIENT AUXILARY ROLL FRICTIONALLY DRIVEN BY SAID MASTER ROLL AT ESSENTIALLY THE SAME PERIPHERAL SPEED AS THE MASTER ROLL, MAINTAINING A NIP PRESSURE OF FROM ABOUT 180 TO ABOUT 1100 POUNDS PER LINEAL INCH, MAINTAINING THE MASTER ROLL AT A TEMPERATURE OF AT LEAST 250*F., AND DRIVING THE MASTER ROLL AT A PERIPHERAL SPEED OF AT LEST ABOUT 525 FEET PER MINUTE SO AS T VAPORIZE AT LEAST MOST OF THE MOISTURE CONTENT OF THE PAPER SOLELY BY CONTACT WITH SAID HEATED MASTER ROLL WITHOUT CHARRING OF THE PAPER.
References Cited (Backward Citations)
US1291626A
Cited
US2518806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |