US4429446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll for a rolling mill
Assignee: Sulzer Escher Wyss AG
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Filing: 1982-04-05
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Granted: 1984-02-07
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Expires: 2002-04-05
Abstract
Abstract A roll for use in a rolling mill contains a stationary roll support or beam and a tubular roll shell rotatable about the stationary roll support. A hydrostatic pressure chamber or space is located between the stationary roll support and the rotatable roll shell. Substantially punch or piston-like pressure or support elements are provided for the roll, these pressure or support elements being located essentially in the plane of symmetry of the pressure chamber at the side of the stationary roll support which faces away from the pressure chamber.
Inventors
- 👤 Rolf Lehmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:09
CPC Classifications
B; B21; B21B; B21B27/00; B21B27/02; B21B27/03; B21B27/05; B21B27/055; D; D21; D21G; D21G1/00; D21G1/02; D21G1/0206; D21G1/0213; D21G1/022; F; F16; F16C; F16C13/00; F16C13/02; F16C13/022; F16C13/024; F16C13/026; F16C13/028
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
172 words
A roll for a rolling mill comprising: a stationary roll support; a substantially tubular-shaped roll shell mounted for rotation about said stationary roll support; said rotatable tubular-shaped roll shell and said stationary roll support cooperating with one another so as to define therebetween a hydrostatic pressure chamber; means operatively associated with said roll support for sealing said pressure chamber; pressurized fluid medium source means communicating with said pressure chamber for infeeding a pressurized fluid medium to said pressure chamber; substantially punch-like support elements provided between the stationary roll support and said rotatable roll shell and located essentially in a plane of symmetry of said pressure chamber; means operatively associated with said roll support defining at least one source of pressurized fluid medium for infeeding a pressurized fluid medium to said punch-like support elements; said punch-like support elements being arranged at a side of said stationary roll support which faces away from said pressure chamber; and said pressure chamber being located on the side of said seal means opposite said punch-like support elements.
Claim 2
Dependent Claim
172 words
A roll for a rolling mill comprising: a stationary roll support; a substantially tubular-shaped roll shell mounted for rotation about said stationary roll support; said rotatable tubular-shaped roll shell and said stationary roll support cooperating with one another so as to define therebetween a hydrostatic pressure chamber; means operatively associated with said roll support for sealing said pressure chamber; pressurized fluid medium source means communicating with said pressure chamber for infeeding a pressurized fluid medium to said pressure chamber; substantially punch-like support elements provided between the stationary roll support and said rotatable roll shell and located essentially in a plane of symmetry of said pressure chamber; means operatively associated with said roll support defining at least one source of pressurized fluid medium for infeeding a pressurized fluid medium to said punch-like support elements; said punch-like support elements being arranged at a side of said stationary roll support which faces away from said pressure chamber; and said pressure chamber being located on the side of said seal means opposite said punch-like support elements.
Claim 3
Dependent Claim
70 words
The roll as defined in claim 1, wherein: each of said support elements is structured as a punch-like element having hydrostatic bearing pocket means; each of said support elements being arranged in a substantially cylindrical compartment provided at the stationary roll support and arranged between the related punch-like support element and said stationary roll support; and throttle channel means for flow communicating said bearing pocket means with said cylindrical compartment.
Claim 4
Dependent Claim
53 words
The roll as defined in claim 1, wherein: said means defining at least one source of pressurized fluid medium for infeeding said pressurized fluid medium to said punch-like support elements infeeds said pressurized fluid medium to said punch-like support elements simultaneously with the infeed of said pressurized fluid medium to said pressure chamber.
References Cited (Backward Citations)
US3879827A
Cited
US4106405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-06 | 1987-08-08 | 1988-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-06 | 1991-08-08 | 1992-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-06 | 1995-08-08 | 1996-02-07 | $7700.00 | Window Closed / Lapsed |