Patent US3331734A successfully refreshed from Google Patents.
US3331734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper machine press and felt assembly
Assignee: BC Holding Group Inc
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Filing: 1965-09-01
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Granted: 1967-07-18
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Expires: 1985-09-01
Abstract
No abstract record available.
Inventors
- 👤 Walter E Rojecki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:18
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/04; D21F3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A PAPER MACHINE PRESS ASSEMBLY COMPRISING A FIRST PRESS ROLL HAVING AN IMPERFORATE SURFACE, AN IMPERFORATE SMALL ROLL OF SUBSTANTIALLY SMALLER DIAMETER THAN SAID PRESS ROLL ARRANGED TO FORM A PRESSURE NIP WITH SAID PRESS ROLL, A SECOND PRESS ROLL OF SUBSTANTIALLY LARGER DIAMETER THAN SAID SMALL ROLL AND POSITIONED IN NIP FORMING RELATION WITH SAID SMALL ROLL ON THE SIDE THEREOF OPPOSITE SAID FIRST PRESS ROLL TO SUPPORT SAID SMALL ROLL IN PRESSURE ENGAGEMENT WITH SAID FIRST PRESS ROLL, MEANS POSITIONING SAID FIRST AND SECOND PRESS ROLLS, WITH THE AXES THEREOF DEFINING A PREDETERMINED PLANE, MEANS FOR DRIVING SAID SECOND PRESS ROLL TO DRIVE SAID SMALL ROLL THROUGH SURFACE ENGAGEMENT THEREWITH, AND ADJUSTABLE MEANS SUPPORTING SAID SMALL ROLL WITH THE AXIS THEREOF IN SLIGHTLY OFFSET RELATION WITH SAID PLANE, ON THE INGOING SIDE OF THE NIP THEREOF WITH SAID SECOND PRESS ROLL SUBSTANTIALLY BALANCING THE PRESSURES TENDING TO FORCE SAID SMALL ROLL AWAY FROM SAID PLANE WITH THE TANGENTIAL FORCES TENDING TO DRIVE SAID SMALL ROLL TOWARD SAID PLANE.
Claim 2
Dependent Claim
170 words
A PAPER MACHINE PRESS ASSEMBLY COMPRISING A FIRST PRESS ROLL HAVING AN IMPERFORATE SURFACE, AN IMPERFORATE SMALL ROLL OF SUBSTANTIALLY SMALLER DIAMETER THAN SAID PRESS ROLL ARRANGED TO FORM A PRESSURE NIP WITH SAID PRESS ROLL, A SECOND PRESS ROLL OF SUBSTANTIALLY LARGER DIAMETER THAN SAID SMALL ROLL AND POSITIONED IN NIP FORMING RELATION WITH SAID SMALL ROLL ON THE SIDE THEREOF OPPOSITE SAID FIRST PRESS ROLL TO SUPPORT SAID SMALL ROLL IN PRESSURE ENGAGEMENT WITH SAID FIRST PRESS ROLL, MEANS POSITIONING SAID FIRST AND SECOND PRESS ROLLS, WITH THE AXES THEREOF DEFINING A PREDETERMINED PLANE, MEANS FOR DRIVING SAID SECOND PRESS ROLL TO DRIVE SAID SMALL ROLL THROUGH SURFACE ENGAGEMENT THEREWITH, AND ADJUSTABLE MEANS SUPPORTING SAID SMALL ROLL WITH THE AXIS THEREOF IN SLIGHTLY OFFSET RELATION WITH SAID PLANE, ON THE INGOING SIDE OF THE NIP THEREOF WITH SAID SECOND PRESS ROLL SUBSTANTIALLY BALANCING THE PRESSURES TENDING TO FORCE SAID SMALL ROLL AWAY FROM SAID PLANE WITH THE TANGENTIAL FORCES TENDING TO DRIVE SAID SMALL ROLL TOWARD SAID PLANE.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |