US4534289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling roller with different preselected cooling zones
Assignee: Heidelberger Druckmaschinen AG
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Filing: 1983-11-14
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Granted: 1985-08-13
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Expires: 2003-11-14
Abstract
Abstract Printing-press roller traversed by a temperature-regulating medium and having jacket-like partitions in the interior thereof surrounded by an outer circumferential wall, includes at least one heat-insulating element disposed in a middle region of the circumferential roller wall, the element forming an impediment to a transfer of heat on the surface of the circumferential roller wall in longitudinal direction thereof.
Inventors
- 👤 Klaus Durrnagel
- 👤 Willi Jeschke
- 👤 Hans-Georg Jahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:57
CPC Classifications
B; B41; B41F; B41F31/00; B41F31/002
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
Printing-Press roller traversed by a temperature-regulating medium and having jacket-like partitions in the interior thereof surrounded by an outer circumferential wall, comprising means located at one axial end of the outer circumferential wall for introducing the temperature regulating medium into the interior of the roller, means for conducting the temperature-regulating medium in a circuitous path through the interior of the roller, means located at the other axial end of the outer circumferential wall for discharging the temperature-regulating medium from the interior of the roller; and at least one heat-insulating element disposed in a middle region of the circumferential roller wall, said element forming an impediment to a transfer of heat on the surface of the circumferential roller wall in longitudinal direction thereof.
Claim 2
Dependent Claim
122 words
Printing-Press roller traversed by a temperature-regulating medium and having jacket-like partitions in the interior thereof surrounded by an outer circumferential wall, comprising means located at one axial end of the outer circumferential wall for introducing the temperature regulating medium into the interior of the roller, means for conducting the temperature-regulating medium in a circuitous path through the interior of the roller, means located at the other axial end of the outer circumferential wall for discharging the temperature-regulating medium from the interior of the roller; and at least one heat-insulating element disposed in a middle region of the circumferential roller wall, said element forming an impediment to a transfer of heat on the surface of the circumferential roller wall in longitudinal direction thereof.
Claim 3
Dependent Claim
29 words
Roller according to claim 1 wherein the outer circumferential wall and one of the jacket-like partitions define an outer cooling chamber region wherein said heat-insulating element is concentrically received.
Claim 4
Dependent Claim
106 words
Printing-press roller traversed by a temperature-regulating medium and having jacket-like partitions in the interior thereof surrounded by an outer circumferential wall, comprising means located at one axial end of the outer circumferential wall for introducing the temperature regulating medium into the interior of the roller, means for conducting the temperature-regulating medium in a circuitous path through the interior of the roller, means located at the other axial end of the outer circumferential wall for discharging the temperature-regulating medium from the interior of the roller; and at least one heat-insulating element incorporated substantially at the middle of and flushly into the surface of the circumferential roller wall.
Claim 5
Dependent Claim
106 words
Printing-press roller traversed by a temperature-regulating medium and having jacket-like partitions in the interior thereof surrounded by an outer circumferential wall, comprising means located at one axial end of the outer circumferential wall for introducing the temperature regulating medium into the interior of the roller, means for conducting the temperature-regulating medium in a circuitous path through the interior of the roller, means located at the other axial end of the outer circumferential wall for discharging the temperature-regulating medium from the interior of the roller; and at least one heat-insulating element incorporated substantially at the middle of and flushly into the surface of the circumferential roller wall.
Claim 6
Dependent Claim
55 words
Roller according to claim 1 including respective flanges closing off the interior of the roller at opposite ends of the outer cylindrical wall thereof, and said medium-introducing means and said medium-discharging means comprising at least one pipeline terminating in the interior of the roller and connectible to a tank containing the temperature-regulating medium under pressure.
Claim 7
Dependent Claim
48 words
Roller according to claim 1 wherein said medium-introducing means comprise at least one inlet nozzle to the interior of the roller located at a drive end of the roller for introducing the temperature-regulating medium into the interior of the roller with maximum heating at said drive end thereof.
Claim 8
Dependent Claim
34 words
Roller according to claim 1 wherein said heat-insulating element is located in a cooling chamber region within the interior of the roller for restricting flow of the temperature-regulating medium through said cooling chamber region.
Claim 9
Dependent Claim
40 words
Roller according to claim 1 wherein said medium-discharging means comprise at least one outlet nozzle from the interior of the roller located at an operator end of the roller for discharging the temperature-regulating medium from the interior of the roller.
Claim 10
Dependent Claim
43 words
Roller according to claim 1 wherein said heat-insulating element is a tube section disposed substantially at the middle of said outer cylindrical wall, flow of the heat-regulating medium past said tube section serving to distribute uniform temperature over the surface of the roller.
References Cited (Backward Citations)
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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) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |