Patent US5045697A successfully refreshed from Google Patents.
US5045697A
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Directly image printing or form cylinder, and method of imaging
Assignee: Manroland AG
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Filing: 1990-05-24
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Granted: 1991-09-03
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Expires: 2010-05-24
Abstract
Abstract To reduce the energy required upon application of oleophilic or hydrophilic substances, respectively, on a printing or forme cylinder (1, 11) by a thermo transfer process, the cylinder is hollow and made of a radiation transmissive material, such as glass or glass ceramic, and radiation sources (8; 18, 19, 20, 21) are located at the inside thereof, directed, at least to the region of the application of the substances by the thermo transfer process; additional radiation sources may be located ahead of and behind the thermo transfer system (2-6) to preheat the region of thermo transfer, and/or to other circumferential regions to set or burn off or soften the substances, if desired, for subsequent removal and erasing of the information on the cylinder.
Inventors
- 👤 Josef Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:07
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/08; B41F13/10; B41C; B41C1/00; B41C1/10; B41C1/1091; B41C1/1075; B41P; B41P2227/00; B41P2227/70
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
94 words
A system for directly imaged printing, said system including a form cylinder (1, 11) for a printing machine, and means (4, 5, 6) for selectively transferring head meltable particles to the surface of said cylinder, wherein said cylinder comprises a hollow cylindrical wall of radiation transmissive material, defining within the hollow wall an inner space; and at least one radiation source (8; 18, 19, 20, 21) located in said inner space directing radiation at an inner surface of at least a portion of said cylindrical wall to assist in melting said heat meltable particles.
Claim 2
Independent Claim
94 words
A system for directly imaged printing, said system including a form cylinder (1, 11) for a printing machine, and means (4, 5, 6) for selectively transferring head meltable particles to the surface of said cylinder, wherein said cylinder comprises a hollow cylindrical wall of radiation transmissive material, defining within the hollow wall an inner space; and at least one radiation source (8; 18, 19, 20, 21) located in said inner space directing radiation at an inner surface of at least a portion of said cylindrical wall to assist in melting said heat meltable particles.
Claim 3
Dependent Claim
11 words
The system of claim 1, wherein the system wall comprises glass.
Claim 4
Dependent Claim
12 words
The system of claim 1, wherein the system wall comprises glass ceramic.
Claim 5
Dependent Claim
12 words
The system of claim 1, wherein the outer system surface is hydrophilic.
Claim 6
Dependent Claim
21 words
The system of claim 1, wherein a plurality of radiation sources (18, 19, 20, 21) are located in said inner space.
Claim 7
Dependent Claim
21 words
The system of claim 1, wherein at least one of the radiation sources (8; 18, 19, 20, 21) emits infrared radiation.
Claim 8
Dependent Claim
21 words
The system of claim 1, wherein at least one of the radiation sources (8; 18, 19, 20, 21) emits visible radiation.
Claim 9
Dependent Claim
23 words
The system of claim 1, wherein at least one of the radiation sources (8; 18, 19, 20, 21) emits actinic or ultraviolet radiation.
Claim 10
Dependent Claim
21 words
The system of claim 1, wherein at least one of the radiation sources (8; 18, 19, 29, 21) emits electromagnetic radiation.
Claim 11
Dependent Claim
50 words
The system of claim 1, wherein said means for selectively transferring heat meltable particles comprises a thermo recording transfer system (2-6) engageable against a predetermined surface portion of said cylinder (1, 11); and wherein at least one of the radiation sources (8; 19) is directed against said predetermined surface portion.
Claim 12
Dependent Claim
60 words
The system of claim 1, wherein said means for selectively transferring heat meltable particles comprises a thermo recording transfer system (2-6) engagable against a predetermined surface portion of said cylinder (1, 11); and wherein at least one of the radiation sources (20) is located, in the direction of rotation of the cylinder, downstream of or behind said predetermined surface portion.
Claim 13
Dependent Claim
60 words
The system of claim 1, wherein said means for selectively transferring heat meltable particles comprises a thermo recording transfer system (2-6) engageable against a predetermined surface portion of said cylinder (1, 11); and wherein at least one of the radiation sources (20) is located, in the direction of rotation of the cylinder, leading or forwardly of said predetermined surface portion.
Claim 14
Dependent Claim
80 words
The system of claim 1, wherein said means for selectively transferring heat meltable particles comprises a thermo recording transfer system (2-6) engageable against a predetermined surface portion of said cylinder (1, 11); and wherein at least one of the radiation sources (21) is directed to a region remote from said predetermined surface portion and emits energy at a level and of a characteristic to be suitable for at least assisting in erasing an image transferred by said thermo transfer system.
Claim 15
Dependent Claim
57 words
In a method of directly imaging a printing or form cylinder, a method of reducing energy required to selectively transfer heat meltable ink application controlling particles onto the outer surface of said printing or form cylinder, comprising applying heat to at least a portion of the wall region of said cylinder from the inside of said cylinder.
Claim 16
Dependent Claim
57 words
In a method of directly imaging a printing or form cylinder, a method of reducing energy required to selectively transfer heat meltable ink application controlling particles onto the outer surface of said printing or form cylinder, comprising applying heat to at least a portion of the wall region of said cylinder from the inside of said cylinder.
Claim 17
Dependent Claim
51 words
The method of claim 14, wherein said cylinder is hollow; and the step of applying heat to said portion of the cylinder comprises locating an energized radiation emitting energy source within the cylinder and directing the radiation from said source towards at least part of the wall portion of the cylinder.
Claim 18
Dependent Claim
41 words
The method of claim 15, wherein said step of directing the radiation comprises transmitting said radiation to the ink application controlling substances and through the cylinder without substantial absorption of said radiation within the cylinder by the material of the cylinder.
Claim 19
Dependent Claim
34 words
The method of claim 16, wherein said cylinder comprises at least one of: glass; glass ceramic; and said radiation comprises at least one of: infrared radiation; visible light; actinic or UV light; electromagnetic radiation.
Claim 20
Dependent Claim
15 words
The method of claim 14, wherein said cylinder comprises material highly transmissive to said radiation.
Claim 21
Dependent Claim
51 words
The method of claim 14, including the step of applying a sublimatable substance, in incremental particle form on the outer surface of said cylinder to form, respectively, a bonding or a release layer; and applying one of: oleophilic particles; hydrophilic particles, over the respective particles of the bonding or release layer.
Claim 22
Dependent Claim
14 words
The method of claim 14, wherein said ink application controlling substances are oleophilic substances.
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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) | 1994-09-02 | 1995-03-04 | 1995-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-02 | 1999-03-04 | 1999-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-02 | 2003-03-04 | 2003-09-03 | $7700.00 | Window Closed / Lapsed |