US4181076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink return circuit for a flexographic printing machine
Assignee: Martin SA
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Filing: 1978-05-31
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Granted: 1980-01-01
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Expires: 1998-05-31
Abstract
Abstract The ink return circuit of a flexographic printing machine, for receiving ink from the ends of the gutter formed by a stereo transfer roller and a pressure regulating roller, comprises, at each end of the rollers, a vertical deflecting spout for receiving ink from the gutter, each spout having three doctor blades comprising a first blade extending substantially along the line of centers of the rollers and inclined to form an overflow and two lateral blades extending perpendicular to the first blade and to the end faces of the rollers. The spouts are biased against the end faces of the rollers and form part of a set of interchangeable spouts.
Inventors
- 👤 Yves Gattus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:55
CPC Classifications
B; B41; B41F; B41F31/00; B41F31/02; B41F31/025; B41F5/00; B41F5/24
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
144 words
A device for use in the ink return circuit of a flexographic printing machine comprising means for feeding ink into the gutter formed by a stereo transfer roller and a pressure-regulating roller, excess ink overflowing at the ends of said rollers into said return circuit, said device comprising: a set of interchangeable deflecting spouts; means for removably mounting one of said spouts at each end of the inking rollers and between the journals thereof; and means for holding each of said spouts under pressure against the respective end faces of said rollers, each of said spouts including three doctor blades comprising a central doctor blade extending substantially along the line of the centers of the rollers and inclined to form an overflow, and two lateral doctor blades extending at right angles to said central doctor blade and to the end face of the rollers.
Claim 2
Independent Claim
144 words
A device for use in the ink return circuit of a flexographic printing machine comprising means for feeding ink into the gutter formed by a stereo transfer roller and a pressure-regulating roller, excess ink overflowing at the ends of said rollers into said return circuit, said device comprising: a set of interchangeable deflecting spouts; means for removably mounting one of said spouts at each end of the inking rollers and between the journals thereof; and means for holding each of said spouts under pressure against the respective end faces of said rollers, each of said spouts including three doctor blades comprising a central doctor blade extending substantially along the line of the centers of the rollers and inclined to form an overflow, and two lateral doctor blades extending at right angles to said central doctor blade and to the end face of the rollers.
Claim 3
Dependent Claim
56 words
A device according to claim 1, further comprising means for receiving a removable ink receiving trough and arranged under each deflecting spout, and a set of interchangeable troughs, each trough having a lower outlet orifice which, when said trough is in position on said receiving means, opens into an inlet of a fixed ink return tube.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-31 | 1983-07-02 | 1984-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-31 | 1987-07-02 | 1988-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-31 | 1991-07-02 | 1992-01-01 | $7700.00 | Window Closed / Lapsed |