Patent US4057012A successfully refreshed from Google Patents.
US4057012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing press convertible from intaglio to flexographic printing and vice versa
Assignee: Windmoeller and Hoelscher KG
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Filing: 1977-03-09
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Granted: 1977-11-08
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Expires: 1997-03-09
Abstract
Abstract A printing press convertible from intaglio to flexographic (letterpress) printing comprises a rubber impression cylinder and a steel impression cylinder which are selectively applied to an appropriate plate cylinder. The steel cylinder is carried by a displaceable carriage and the rubber cylinder can be swung from an operative position interposed between the steel and plate cylinders to an inoperative position above the steel cylinder by being carried by pivotable arms. A guide roller, over which the web to be printed is passed towards the plate cylinder is displaceable from a position directly above the steel cylinder during flexographic printing to a position above and at one side of the steel cylinder during intaglio printing.
Inventors
- 👤 Rolf Heidemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:21
CPC Classifications
B; B41; B41F; B41F11/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
191 words
A web printing press convertible from intaglio to flexographic printing and vice versa, comprising a frame; means for selectively mounting a flexographic printing cylinder and an intaglio printing cylinder within said frame; two impression cylinders; means for mounting said impression cylinders in displaceable and securable mountings on said frame; said impression cylinders including a rubber cylinder and a steel cylinder for selective cooperation with said intaglio printing cylinder and said flexographic printing cylinder, respectively; guide rollers disposed above said impression cylinders for guiding the web to be printed through upstream and downstream paths relative to the printing nip; said mounting means including means for mounting said steel cylinder in a displaceable carriage and further including means for mounting said rubber cylinder on pivotable arms for swinging said rubber cylinder about a pivotal axis from a position between said steel cylinder and said intaglio printing cylinder to a position above said steel cylinder and between said upstream and downstream web paths; means for mounting one of said web guide rollers for displacement from a vertical position above the said steel cylinder during flexographic printing to a position offset therefrom during intaglio printing.
Claim 2
Dependent Claim
191 words
A web printing press convertible from intaglio to flexographic printing and vice versa, comprising a frame; means for selectively mounting a flexographic printing cylinder and an intaglio printing cylinder within said frame; two impression cylinders; means for mounting said impression cylinders in displaceable and securable mountings on said frame; said impression cylinders including a rubber cylinder and a steel cylinder for selective cooperation with said intaglio printing cylinder and said flexographic printing cylinder, respectively; guide rollers disposed above said impression cylinders for guiding the web to be printed through upstream and downstream paths relative to the printing nip; said mounting means including means for mounting said steel cylinder in a displaceable carriage and further including means for mounting said rubber cylinder on pivotable arms for swinging said rubber cylinder about a pivotal axis from a position between said steel cylinder and said intaglio printing cylinder to a position above said steel cylinder and between said upstream and downstream web paths; means for mounting one of said web guide rollers for displacement from a vertical position above the said steel cylinder during flexographic printing to a position offset therefrom during intaglio printing.
Claim 3
Dependent Claim
23 words
A printing press according to claim 1, wherein said pivotable arms are mounted for pivotable motion about the axis of said steel cylinder.
Claim 4
Dependent Claim
33 words
A printing press according to claim 1 including bearings for supporting the said rubber cylinder on said pivotal arms and means for adjusting the spacing of said bearings from the said pivotal axis.
Claim 5
Dependent Claim
19 words
A printing press according to claim 1 wherein the said steel cylinder supports the rubber cylinder during intaglio printing.
Claim 6
Dependent Claim
27 words
A printing press according to claim 1 further including means for mounting a web feed roller for cooperation with said steel cylinder after conversion to flexographic printing.
Claim 7
Dependent Claim
27 words
A printing press according to claim 1 wherein said displaceable web guide roller is displaceable horizontally relative to said displaceable carriage that is arranged for vertical displacement.
References Cited (Backward Citations)
US2164270A
Cited
US2716942A
Cited
US2676537A
Cited
US3288060A
Cited
US3889596A
Cited
US3793952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |