US4599770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll for rolling mill
Assignee: IHI Corp
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Filing: 1984-04-06
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Granted: 1986-07-15
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Expires: 2004-04-06
Abstract
Abstract In a roll of the type in which a sleeve is fitted over a roll core, the sleeve is expanded radially outwardly so that the roll profile is varied optimumly depending upon a complex profile or cross section of a strip to be rolled.
Inventors
- 👤 Heiji Kato
- 👤 Hiroyuki Shiozaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:27
CPC Classifications
B; B21; B21B; B21B27/00; B21B27/02; B21B27/03; B21B27/05
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
A roll used in a rolling mill comprising a roll core, a sleeve fitted over the length of said roll core, means defining a liquid-tight chamber between an end portion of said roll core and an end portion of said sleeve, said liquid-tight chamber having opposing surfaces, at least one of the opposing surfaces of said liquid-tight chamber being tapered, an axially movable tapered ring interposed between the opposing surfaces of said liquid-tight chamber, and means connected with said liquid-tight chamber for forcing a liquid therein for moving said tapered ring axially toward the center portions of said roll core and sleeve so that the end portion of said sleeve is radially expanded, whereby the roll profile is varied.
Claim 2
Dependent Claim
119 words
A roll used in a rolling mill comprising a roll core, a sleeve fitted over the length of said roll core, means defining a liquid-tight chamber between an end portion of said roll core and an end portion of said sleeve, said liquid-tight chamber having opposing surfaces, at least one of the opposing surfaces of said liquid-tight chamber being tapered, an axially movable tapered ring interposed between the opposing surfaces of said liquid-tight chamber, and means connected with said liquid-tight chamber for forcing a liquid therein for moving said tapered ring axially toward the center portions of said roll core and sleeve so that the end portion of said sleeve is radially expanded, whereby the roll profile is varied.
Claim 3
Dependent Claim
120 words
A roll used in a rolling mill comprising a roll core, a sleeve fitted over the length of said roll core, means defining a liquid-tight chamber between a center portion of said roll core and a center portion of said sleeve, said liquid-tight chamber having opposed surfaces, at least one of the opposing surfaces of said liquid-tight chamber being tapered, an axially movable tapered ring interposed between the opposing surfaces of said liquid-tight chamber, and means connected with said liquid-tight chamber for forcing a liquid therein for moving said tapered ring axially toward the center portions of said roll core and sleeve so that the center portion of said sleeve is radially outwardly expanded, whereby the roll profile is varied.
Claim 4
Dependent Claim
120 words
A roll used in a rolling mill comprising a roll core, a sleeve fitted over the length of said roll core, means defining a liquid-tight chamber between a center portion of said roll core and a center portion of said sleeve, said liquid-tight chamber having opposed surfaces, at least one of the opposing surfaces of said liquid-tight chamber being tapered, an axially movable tapered ring interposed between the opposing surfaces of said liquid-tight chamber, and means connected with said liquid-tight chamber for forcing a liquid therein for moving said tapered ring axially toward the center portions of said roll core and sleeve so that the center portion of said sleeve is radially outwardly expanded, whereby the roll profile is varied.
References Cited (Backward Citations)
US2241669A
Cited
US2651241A
Cited
US4062096A
Cited
JPS5568107A
Cited
US4423541A
Cited
JPS5797806A
Cited
JPS58196106A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |