US3563854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing arrangement for a breast box of a papermaking machine
Assignee: JM Voith GmbH
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Filing: 1967-07-24
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Granted: 1971-02-16
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Expires: 1987-07-24
Abstract
Abstract SEALING ARRANGEMENT FOR SEALING BETWEEN THE BOTTOM EDGES OF THE WALLS OF THE BREAST B OX OF A PAPERMAKING MACHINE AND THE POROUS MEMBER MOVING THEREBENEATH, IN WHICH THE WALLS OF THE BREAST BOX TERMINATE SHORT OF THE POROUS MEMBER AND CHAMBERS ARE FORMED ALONG THE WALLS TO WHICH A FLUID MEDIUM IS SUPPLIED UNDER PRESSURE TO PREVENT SUSPENSION FROM FLOWING FROM THE BREAST BOX OUT THROUGH THE OPENINGS.
Inventors
- 👤 Henrik Nisser
- 👤 Werner Schon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:03
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/02
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |