Patent US4082258A successfully refreshed from Google Patents.
Patent US3190212A successfully refreshed from Google Patents.
US3190212A
Expired / Lapsed
US
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Gloss calender
Assignee: Beloit Corp
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Filing: 1963-05-27
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Granted: 1965-06-22
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Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 Moore Lawrence Augustus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:47
CPC Classifications
D; D21; D21F; D21F7/00; D21F7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD OF CALENDERING AN UNCOATED PAPER WEB AS IT LEAVES THE DRIER OF A PAPER MAKING MACHINE, COMPRISING THE PASSING OF THE WEB THROUGH THE NIPS OF A SERIES OF PRESSURE ROLLS AND THROUGH THE NIP BETWEEN A BACKING ROLL AND A FINISHING ROLL OF A CALENDER STACK, AND HEATING THE SURFACE OF THE FINISHING ROLL TO A TEMPERATURE GREATER THAN THE BOILING POINT OF WATER AND AT THE INCOMING SIDE OF THE NIP BETWEEN THE FINISHING ROLL AND THE BACKING ROLL BY IMPINGING HEATED AIR ON THE SURFACE OF THE FINISHING ROLL OVER A SUBSTANTIAL AREA THEREOF.
Claim 2
Independent Claim
99 words
A METHOD OF CALENDERING AN UNCOATED PAPER WEB AS IT LEAVES THE DRIER OF A PAPER MAKING MACHINE, COMPRISING THE PASSING OF THE WEB THROUGH THE NIPS OF A SERIES OF PRESSURE ROLLS AND THROUGH THE NIP BETWEEN A BACKING ROLL AND A FINISHING ROLL OF A CALENDER STACK, AND HEATING THE SURFACE OF THE FINISHING ROLL TO A TEMPERATURE GREATER THAN THE BOILING POINT OF WATER AND AT THE INCOMING SIDE OF THE NIP BETWEEN THE FINISHING ROLL AND THE BACKING ROLL BY IMPINGING HEATED AIR ON THE SURFACE OF THE FINISHING ROLL OVER A SUBSTANTIAL AREA THEREOF.
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |