US3240442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-textured winder drum
Assignee: Beloit Eastern Corp
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Filing: 1964-02-13
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Granted: 1966-03-15
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Expires: 1984-02-13
Abstract
No abstract record available.
Inventors
- 👤 John A Kilmartin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:16
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/022; B65H23/025; B65H23/0251; B65H23/0256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A PAPER WEB WINDER COMPRISING, MEANS SUPPLYING A CONTINUOUS WEB TO A ROLL BEING WOUND, AND MEANS FOR SUPPORTING THE ROLL INCLUDING A SUPPORTING DRUM HAVING A CYLINDRICAL OUTER SURFACE OF NON-YIELDING MATERIAL FORMING A WINDING NIP WITH THE ROLL BEING WOUND, SAID DRUM HAVING HELICAL GROOVES FORMED IN THE SURFACE THEREOF, AND A RESILIENT RUBBER FILLER IN SAID GROOVES HAVING AN OUTER SURFACE SUPPORTINGLY ENGAGING THE OUTER SURFACE OF THE WEB COATING WITH THE NON-YIELDING MATERIAL OF THE DRUM AND YIELDING TO PREVENT THE CAPTURE OF AIR BUBBLES BETWEEN THE INNER SURFACE OF THE WEB AND THE ROLL BEING WOUND, SAID WEB BEING SUPPORTED BY BOTH THE NON-YIELDING MATERIAL AND BY THE RESISLIENT FILLER IN EACH SAID NIP.
Claim 2
Dependent Claim
119 words
A PAPER WEB WINDER COMPRISING, MEANS SUPPLYING A CONTINUOUS WEB TO A ROLL BEING WOUND, AND MEANS FOR SUPPORTING THE ROLL INCLUDING A SUPPORTING DRUM HAVING A CYLINDRICAL OUTER SURFACE OF NON-YIELDING MATERIAL FORMING A WINDING NIP WITH THE ROLL BEING WOUND, SAID DRUM HAVING HELICAL GROOVES FORMED IN THE SURFACE THEREOF, AND A RESILIENT RUBBER FILLER IN SAID GROOVES HAVING AN OUTER SURFACE SUPPORTINGLY ENGAGING THE OUTER SURFACE OF THE WEB COATING WITH THE NON-YIELDING MATERIAL OF THE DRUM AND YIELDING TO PREVENT THE CAPTURE OF AIR BUBBLES BETWEEN THE INNER SURFACE OF THE WEB AND THE ROLL BEING WOUND, SAID WEB BEING SUPPORTED BY BOTH THE NON-YIELDING MATERIAL AND BY THE RESISLIENT FILLER IN EACH SAID NIP.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |