US5109587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber covered roller in which the physical state of the rubber at the end faces thereof is between a rubber elastic physical state and a glasslike physical state
Assignee: Heidelberger Druckmaschinen AG
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Filing: 1989-06-12
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Granted: 1992-05-05
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Expires: 2009-06-12
Abstract
Abstract A rubber-covered roller includes a rod core, and a cylindrical covering on the core formed of rubber, the cylindrical covering having respective end faces at which the rubber is in a physical state formed by ultraviolet irradiation which is between a rubber-elastic physical state and a glasslike physical state.
Inventors
- 👤 Hans-Jurgen Kusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:29
CPC Classifications
B; B41; B41N; B41N7/00; B41F; B41F7/00; B41F7/20; B41F7/24; B41F7/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
55 words
A rubber-covered roller comprising a rod-like core, and a cylindrical covering on said core formed of rubber predominately in a rubber elastic state, said cylindrical covering having respective end faces at which the rubber is in a physical state formed by ultraviolet irradiation which is between the rubber-elastic physical state and a glasslike physical state.
Claim 2
Dependent Claim
55 words
A rubber-covered roller comprising a rod-like core, and a cylindrical covering on said core formed of rubber predominately in a rubber elastic state, said cylindrical covering having respective end faces at which the rubber is in a physical state formed by ultraviolet irradiation which is between the rubber-elastic physical state and a glasslike physical state.
Claim 3
Dependent Claim
76 words
A rubber covered roller according to claim 1 wherein the rubber at said respective end faces of said cylindrical covering is in a physical state formed by the application thereto of ultraviolet radiation having a wavelength of substantially 300 to 400 nm from a source located at a distance of substantially 10 cm from the rubber for a period of substantially 60 hours, the source having an installed power of substantially 0.1 watt per square centimeter.
References Cited (Backward Citations)
US4455938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-05 | 1995-11-04 | 1996-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-05 | 1999-11-04 | 2000-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-05 | 2003-11-04 | 2004-05-05 | $7700.00 | Window Closed / Lapsed |