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US3578558A
Expired / Lapsed
US
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Twin wire paper making assembly
Assignee: Black Clawson Co
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Filing: 1968-02-19
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Granted: 1971-05-11
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Expires: 1988-02-19
Abstract
Abstract APPARATUS FOR MAKING PAPER IN A TWIN WIRE PAPER MAKING MACHINE. A PAIR OF ENDLESS FORMING WEBS LOOPED AROUND A PAIR OF SPACED PARALLEL BREAST ROLLS FORMS A NIP OF PREDETERMINED WIDTH. DEFLECTOR ASSEMBLIES IN CONTACT WITH THE FORMING WEBS DOWNSTREAM OF THE BREAST ROLLS GUIDE THE WEBS INTO GRADUALLY CONVERGING RELATION. AN ADJUSTABLE REGULATOR BAR, POSITIONED IN CONTACT WITH ONE OF THE WEBS BETWEEN THE BREAST ROLLS AND DEFLECTOR ASSEMBLIES, FORCES THE ONE WEB INTO PREDETERMINED RELATION WITH THE OTHER WEB, THUS ESTABLISHING A PRESENT DISTANCE THEREBETWEEN. D R A W I N G
Inventors
- 👤 Terence E Mccarrick
- 👤 Olaf S Antonsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:31
CPC Classifications
D; D21; D21F; D21F9/00; D21F9/003
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |