US3646652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller structure
Assignee: Day International Corp
•
Filing: 1969-05-15
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Granted: 1972-03-07
•
Expires: 1989-05-15
Abstract
Abstract A precision roll, having a substantially rigid core, an outer plastic sleeve, and filler means made of an elastic material and provided between the core and sleeve, whereby the plastic sleeve and filler means cooperate to enable the provision of a precision outside surface for the roll while assuring such outside surface has a resilient character.
Inventors
- 👤 Harry E Heiligenthal
- 👤 Arthur E Nichols Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:39
CPC Classifications
F; F16; F16C; F16C13/00; B; B29; B29D; B29D99/00; B29D99/0032; B29D99/0035; B41; B41N; B41N7/00; B41N7/005; B29L; B29L2031/00; B29L2031/32; B29L2031/324; B41N2207/00; B41N2207/02; B41N2207/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
142 words
A precision roll comprising, a substantially rigid unyielding core, an outer cylindrical sleeve made of nylon and integral tubular filler means made of an elastic material, said filler means having its inside surface means fixed against said core and its outside surface means fixed against said nylon sleeve, said nylon sleeve and tubular filler means cooperating to enable the provision of a precision outside surface for said roll while assuring said outside surface has a resilient character, said filler means comprising a foamed polyurethane which is provided between said core and said nylon outer sleeve, said nylon sleeve being in the form of a cast nylon sleeve which is free of internal stresses and said tubular filler means is of a yielding character which yields substantially upon cooling said nylon sleeve which has been cast thereagainst to assure said sleeve stress free.
Claim 2
Dependent Claim
142 words
A precision roll comprising, a substantially rigid unyielding core, an outer cylindrical sleeve made of nylon and integral tubular filler means made of an elastic material, said filler means having its inside surface means fixed against said core and its outside surface means fixed against said nylon sleeve, said nylon sleeve and tubular filler means cooperating to enable the provision of a precision outside surface for said roll while assuring said outside surface has a resilient character, said filler means comprising a foamed polyurethane which is provided between said core and said nylon outer sleeve, said nylon sleeve being in the form of a cast nylon sleeve which is free of internal stresses and said tubular filler means is of a yielding character which yields substantially upon cooling said nylon sleeve which has been cast thereagainst to assure said sleeve stress free.
Claim 3
Dependent Claim
16 words
A roll as set forth in claim 1 in which said core comprises a metal core.
References Cited (Backward Citations)
US620286A
Cited
US1161756A
Cited
US1555389A
Cited
US2685548A
Cited
US2741014A
Cited
US2926628A
Cited
US3365774A
Cited
US3254599A
Cited
US3238086A
Cited
US3336862A
Cited
US3435500A
Cited
US3475803A
Cited
US3451112A
Cited
US3449548A
Cited
US3514829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |