US3747181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press roll
Assignee: Tampella Oy AB
•
Filing: 1972-01-18
•
Granted: 1973-07-24
•
Expires: 1992-01-18
Abstract
Abstract In a press roll, which has an outer rotating roll mantle and, fitted inside the mantle, a core, which works as the supporting and fixing axle and against which one or several pressure cylinders directed toward the press nip have been propped at one end, the rotating roll mantle has been attached with bearings onto the fixed supporting mantle surrounding the core and the other ends of the pressure cylinders arranged to actuate the supporting mantle.
Inventors
- 👤 E Nykopp
- 👤 L Utriainen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:32
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/02; F16C13/022; F16C13/024; F16C13/026; F16C13/028; D; D21; D21F; D21F3/00; D21F3/02; D21F3/08; D21G; D21G1/00; D21G1/02; D21G1/0206; D21G1/0213; D21G1/022
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
135 words
A press roll having a rotatable cylinderical roll mantle, a hollow fixed supporting axle inside the mantle, at least one pressure cylinder, at least one aperture in said axle for each said pressure cylinder, one end of said pressure cylinder attached to the inside of the hollow axle and the other end of said pressure cylinder extending through said aperture and being adopted to project towards a press nip and cooperate with the cylindrical roll to control the profile thereof, a coaxial cylindrical mantle between the rotatable roll mantle and the supporting axle and adapted to be actuated by the other end of the pressure cylinder, means for fixedly mounting the coaxial cylindrical mantle on the supporting axle, and bearings in the interstice between the rotatable cylindrical roll mantle and the non-rotatable coaxial cylindrical mantle.
Claim 2
Dependent Claim
135 words
A press roll having a rotatable cylinderical roll mantle, a hollow fixed supporting axle inside the mantle, at least one pressure cylinder, at least one aperture in said axle for each said pressure cylinder, one end of said pressure cylinder attached to the inside of the hollow axle and the other end of said pressure cylinder extending through said aperture and being adopted to project towards a press nip and cooperate with the cylindrical roll to control the profile thereof, a coaxial cylindrical mantle between the rotatable roll mantle and the supporting axle and adapted to be actuated by the other end of the pressure cylinder, means for fixedly mounting the coaxial cylindrical mantle on the supporting axle, and bearings in the interstice between the rotatable cylindrical roll mantle and the non-rotatable coaxial cylindrical mantle.
Claim 3
Dependent Claim
41 words
A press roll as recited in claim 1 and having a plurality of pressure cylinders, wherein the pressure cylinders are parallel to each other and arranged in one row along the inner side of the hollow axle opposite the press nip.
Claim 4
Dependent Claim
17 words
A press roll as recited in claim 2, further comprising means for separately actuating each pressure cylinder.
Claim 5
Dependent Claim
33 words
A press roll as recited in claim 1, further comprising axially extending rail means attached to the coaxial cylindrical mantle between said other end of the pressure cylinder and said coaxial cylindrical mantle.
Claim 6
Dependent Claim
182 words
A press roll having a rotatable cylindrical roll mantle, a fixed supporting axle inside the mantle, and at least one pressure cylinder with one end attached to the supporting axle and the other end being adapted to project towards a press nip and cooperate with the cylindrical roll to control the profile thereof, a coaxial cylindrical mantle between the rotatable roll mantle and the supporting axle and adapted to be actuated by the other end of the pressure cylinder; means for fixedly mounting the coaxial cylindrical mantle in the supporting axle comprising a flange attached to each end of the coaxial cylindrical mantle and having a cross-sectionally spherical slide surface facing the supporting axle, a ring attached to the supporting axle between the same and each flange and having a cross-sectionally spherical slide surface adapted to cooperate with the corresponding slide surface on the flange, and means for interlocking the position of the coaxial cylindrical mantle and the supporting axle in respect to each other; and bearings in the interstice between the rotatable cylindrical roll mantle and the non-rotatable coaxial cylindrical mantle.
Claim 7
Dependent Claim
182 words
A press roll having a rotatable cylindrical roll mantle, a fixed supporting axle inside the mantle, and at least one pressure cylinder with one end attached to the supporting axle and the other end being adapted to project towards a press nip and cooperate with the cylindrical roll to control the profile thereof, a coaxial cylindrical mantle between the rotatable roll mantle and the supporting axle and adapted to be actuated by the other end of the pressure cylinder; means for fixedly mounting the coaxial cylindrical mantle in the supporting axle comprising a flange attached to each end of the coaxial cylindrical mantle and having a cross-sectionally spherical slide surface facing the supporting axle, a ring attached to the supporting axle between the same and each flange and having a cross-sectionally spherical slide surface adapted to cooperate with the corresponding slide surface on the flange, and means for interlocking the position of the coaxial cylindrical mantle and the supporting axle in respect to each other; and bearings in the interstice between the rotatable cylindrical roll mantle and the non-rotatable coaxial cylindrical mantle.
References Cited (Backward Citations)
DE1146022B
Cited
US3050829A
Cited
US3119324A
Cited
US3131625A
Cited
US3389450A
Cited
US3618190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |