Patent US1677357A successfully refreshed from Google Patents.
Patent US3610137A successfully refreshed from Google Patents.
US3610137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calender for paper and the like
Assignee: Beloit Corp
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Filing: 1968-11-22
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Granted: 1971-10-05
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Expires: 1988-11-22
Abstract
Abstract CALENDER IN WHICH A SMALL DIAMETER CENTER ROLL HAS PRESSURE NIP COOPERATION WITH A SERIES OF OUTER LARGER DIAMETER CONTROLLED DEFLECTION ROLLS AT EQUAL SPACINGS ABOUT SAID CENTER ROLL. THE TOP ROLL OF THE SERIES OF OUTER ROLLS IS LOADED TO CONTROL THE NIP PRESSURE LEVEL. A SECOND CENTER ROLL MAY HAVE PRESSURE NIP COOPERATION WITH TWO OF THE CONTROLLED DEFLECTION ROLLS AND MAY BE ENGAGED BY A CONTROLLED DEFLECTION ROLL AT ITS BOTTOM IN EQUALLY SPACED RELATION WITH RESPECT TO THE NIPS BETWEEN THE FIRST MENTIONED CENTER ROLL AND THE TWO BOTTOM CALENDER ROLLS OF THE SERIES OF CALENDER ROLLS.
Inventors
- 👤 Donald A Brafford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:24
CPC Classifications
D; D21; D21G; D21G1/00; D21G1/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |