US4154078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill
Assignee: Sulzer Escher Wyss AG
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Filing: 1977-10-13
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Granted: 1979-05-15
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Expires: 1997-10-13
Abstract
Abstract Rolling mill for the rolling of materials in sheet form, having two working rolls between which the material is rolled, and for each working roll a supporting roll, a hydraulic medium holding the working rolls in position; the axes of the two working rolls being situated substantially in an at least approximately horizontal plane, and the rolled material being taken downwards from above through the gap between the working rolls.
Inventors
- 👤 Rolf Lehmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:25
CPC Classifications
B; B21; B21B; B21B27/00; B21B27/02; B21B27/03; B21B27/05; B21B27/055; B21B27/06; B21B27/10; D; D21; D21G; D21G1/00; D21G1/002; D21G1/0026; D21G1/02; D21G1/0226; F; F16; F16C; F16C13/00; F16C13/02; F16C13/022; F16C13/024; F16C13/026; F16C13/028; B21B13/00; B21B13/02; B21B2013/025; B21B2201/00; B21B2201/18; B21B45/00; B21B45/02; B21B45/0269; B21B45/0275; B21B45/0278
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
A rolling mill for material in sheet form including two working rolls which define a roll gap for the sheet material and each of which rolls has coacting supporting means comprising hydrostatic support apparatus which applies hydraulic medium directly to its surface, and characterized in that the axes of the working rolls lie in a plane which is at least approximately horizontal; by means which causes the material to be rolled to pass downward through the roll gap; and by a pair of collecting troughs for hydraulic medium located below the working rolls and spaced apart so that the material issuing from the roll gap passes between them, whereby said hydraulic medium does not contact the sheet material after the latter issues from the roll gap.
Claim 2
Dependent Claim
126 words
A rolling mill for material in sheet form including two working rolls which define a roll gap for the sheet material and each of which rolls has coacting supporting means comprising hydrostatic support apparatus which applies hydraulic medium directly to its surface, and characterized in that the axes of the working rolls lie in a plane which is at least approximately horizontal; by means which causes the material to be rolled to pass downward through the roll gap; and by a pair of collecting troughs for hydraulic medium located below the working rolls and spaced apart so that the material issuing from the roll gap passes between them, whereby said hydraulic medium does not contact the sheet material after the latter issues from the roll gap.
Claim 3
Dependent Claim
38 words
A rolling mill as defined in claim 1 in which each trough has an edge which extends into the vicinity of the roll gap and is spaced from both the rolled sheet material and the associated working roll.
Claim 4
Dependent Claim
37 words
A rolling mill as defined in claim 2 in which, at said edge, each trough is provided with a sealing strip which defines an elongated narrow gap which extends circumferentially with respect to the associated working roll.
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) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |