US3617445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll composition
Assignee: Beloit Corp
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Filing: 1969-06-11
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Granted: 1971-11-02
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Expires: 1989-06-11
Abstract
Abstract An apparatus for use in combination with a traveling web, comprising a pair of rolls defining a nip between which said web passes, at least one of said rolls having an outer shell consisting of a nonwoven mat wrapping said roll and bonded with a thermosetting resin. Preferred nonwoven mats for the present invention are acrylic mats, while thermosetting resins most preferred are epoxy resins.
Inventors
- 👤 Donald A Brafford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:10
CPC Classifications
D; D21; D21F; D21F3/00; D21F3/02; D21F3/08; D21G; D21G1/00; D21G1/02; D21G1/0246
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
18 words
The apparatus of claim 1 wherein said pair of rolls foRms a wet press nip in a papermachine.
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |