Patent EP0059272A1 successfully refreshed from Google Patents.
US3604350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexographic presses with interrupter and cylinder register mechanisms
Assignee: LEE MACHINERY CORP
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Filing: 1969-04-23
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Granted: 1971-09-14
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Expires: 1989-04-23
Abstract
Abstract A flexographic press having a plurality of printing stations with each station having an associated impression cylinder, a printing plate cylinder mounted for individual movement back and forth relative to its impression cylinder, and an ink fountain roller mounted for individual movement back and forth relative to its printing plate cylinder, and means for correcting the web registration between stations.
Inventors
- 👤 Lawrence Rosenstadt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:41
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/08; B41F13/24; B41F31/00; B41F31/30; B41F31/304; B41F31/307; B41F5/00; B41F5/24
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
315 words
In a flexographic press having a plurality of printing stations with each station having an ink fountain roller, a printing plate cylinder and a related impression cylinder, the combination in each station comprising means mounting said printing plate cylinders including a printing plate cylinder shaft, said printing plate cylinder being mounted on said printing plate cylinder shaft, a printing plate cylinder frame having upward extensions, said printing plate cylinder shaft being mounted on said extensions, a press frame having a crossarm, said crossarm having a printing plate cylinder frame keyway, said printing plate cylinder frame being slidably mounted on said cylinder frame keyway, a gear shaft, means for manually rotating said gear shaft, a gear mounted on said gear shaft, an elongated rack mounted on said crossarm, said gear shaft being arranged for transverse motion with respect to said press to engage and disengage said gear with respect to said rack, said gear shaft, gear, and rack being arranged to position plate cylinder frame with respect to said crossarm when said gear is in engagement with said rack and said gear shaft is manipulated, a frame adjusting shaft, said plate cylinder frame having a bore for receiving said frame adjusting shaft in sliding motion, a releasable locking screw for locking said frame adjusting shaft in said bore in a preselected position, the other end of said frame adjusting shaft having a threaded portion, a manipulatable frame adjusting nut mounted on said threaded portion, said frame adjusting nut having a circumferential Groove, a bracket fixedly mounted on the crossarm and receivable in said circumferential groove to prevent longitudinal movement of said frame adjusting nut by allowing rotational movement, said frame adjusting nut and said frame adjusting screw being arranged to move said plate cylinder frame with respect to said crossarm when said locking screw is in its locked position and said frame adjusting nut is rotated.
Claim 2
Dependent Claim
315 words
In a flexographic press having a plurality of printing stations with each station having an ink fountain roller, a printing plate cylinder and a related impression cylinder, the combination in each station comprising means mounting said printing plate cylinders including a printing plate cylinder shaft, said printing plate cylinder being mounted on said printing plate cylinder shaft, a printing plate cylinder frame having upward extensions, said printing plate cylinder shaft being mounted on said extensions, a press frame having a crossarm, said crossarm having a printing plate cylinder frame keyway, said printing plate cylinder frame being slidably mounted on said cylinder frame keyway, a gear shaft, means for manually rotating said gear shaft, a gear mounted on said gear shaft, an elongated rack mounted on said crossarm, said gear shaft being arranged for transverse motion with respect to said press to engage and disengage said gear with respect to said rack, said gear shaft, gear, and rack being arranged to position plate cylinder frame with respect to said crossarm when said gear is in engagement with said rack and said gear shaft is manipulated, a frame adjusting shaft, said plate cylinder frame having a bore for receiving said frame adjusting shaft in sliding motion, a releasable locking screw for locking said frame adjusting shaft in said bore in a preselected position, the other end of said frame adjusting shaft having a threaded portion, a manipulatable frame adjusting nut mounted on said threaded portion, said frame adjusting nut having a circumferential Groove, a bracket fixedly mounted on the crossarm and receivable in said circumferential groove to prevent longitudinal movement of said frame adjusting nut by allowing rotational movement, said frame adjusting nut and said frame adjusting screw being arranged to move said plate cylinder frame with respect to said crossarm when said locking screw is in its locked position and said frame adjusting nut is rotated.
Claim 3
Dependent Claim
248 words
In a flexographic press having a plurality of printing stations with each station having an ink fountain roller, a printing plate cylinder and a related impression cylinder, the combination in each station comprising means mounting each of said printing plate cylinders for individual movement back and forth relative to its impression cylinder, means mounting each of said ink fountain rollers for individual movement back and forth relative to its printing plate cylinder, said means mounting in said printing plate cylinder including coarse adjusting means and vernier adjusting means, said means mounting said printing plate cylinder including a printing plate cylinder shaft, said printing plate cylinder being mounted on said printing plate cylinder shaft, a printing plate cylinder frame having upward extensions, said printing plate cylinder shaft being mounted on said extensions, a press frame having a crossarm, said crossarm having a printing plate cylinder frame keyway, said printing plate cylinder frame being slidably mounted on said cylinder frame keyway, said coarse adjusting means for adjusting the position of said plate cylinder with respect to said impression cylinder comprising a gear shaft, means for rotating said gear shaft, a gear mounted on said gear shaft, an elongated rack mounted on said crossarm, said gear shaft being arranged for transverse motion with respect to said rack, said gear shaft, gear, and rack being arranged to position said plate cylinder frame with respect to said crossarm when said gear is in engagement with said rack and said gear shaft is manipulated.
Claim 4
Dependent Claim
248 words
In a flexographic press having a plurality of printing stations with each station having an ink fountain roller, a printing plate cylinder and a related impression cylinder, the combination in each station comprising means mounting each of said printing plate cylinders for individual movement back and forth relative to its impression cylinder, means mounting each of said ink fountain rollers for individual movement back and forth relative to its printing plate cylinder, said means mounting in said printing plate cylinder including coarse adjusting means and vernier adjusting means, said means mounting said printing plate cylinder including a printing plate cylinder shaft, said printing plate cylinder being mounted on said printing plate cylinder shaft, a printing plate cylinder frame having upward extensions, said printing plate cylinder shaft being mounted on said extensions, a press frame having a crossarm, said crossarm having a printing plate cylinder frame keyway, said printing plate cylinder frame being slidably mounted on said cylinder frame keyway, said coarse adjusting means for adjusting the position of said plate cylinder with respect to said impression cylinder comprising a gear shaft, means for rotating said gear shaft, a gear mounted on said gear shaft, an elongated rack mounted on said crossarm, said gear shaft being arranged for transverse motion with respect to said rack, said gear shaft, gear, and rack being arranged to position said plate cylinder frame with respect to said crossarm when said gear is in engagement with said rack and said gear shaft is manipulated.
Claim 5
Dependent Claim
155 words
A flexographic press according to claim 2 wherein said vernier adjusting means for adjusting said plate cylinder with respect to said impression cylinder comprises a frame adjusting shaft, said plate cylinder frame having a bore for receiving said frame adjusting shaft in sliding motion, a releasable locking screw for locking said frame adjusting shaft in said bore in a preselected position, the other end of said frame adjusting shaft having a threaded portion, a manipulatable frame adjusting nut mounted on said threaded portion, said frame adjusting nut having a circumferential groove, a bracket fixedly mounted on said crossarm and receivable in said circumferential groove to prevent longitudinal movement of said frame adjusting nut but allowing rotational movement, said frame adjusting nut and said frame adjusting screw being arranged to move said plate cylinder frame with respect to said crossarm when said locking screw is in its locked position and said frame adjusting nut is rotated.
Claim 6
Dependent Claim
102 words
A flexographic press according to claim 2 including means for adjusting the rotational position of the printing plate cylinder with respect to the impression cylinder to correct the web registration between stations comprising a pair of mating helical gears, means mounting one of said gears in direct drive relationship with respect to said printing plate cylinder and means mounting the other of said gears in direct drive relationship with respect to said impression cylinder, means for adjusting the relative position between said pair of helical gears to provide partial rotational movement of said printing plate cylinder with respect to said impression cylinder.
Claim 7
Dependent Claim
246 words
In a flexographic press having a plurality of printing stations with each station having an ink fountain roller, a printing plate cylinder and a related impression cylinder, the combination in each station comprising means mounting each of said printing plate cylinders for individual movement bacK and forth relative to its impression cylinder, means mounting each of said ink fountain rollers for individual movement back and forth relative to its printing plate cylinder, said means mounting said ink fountain roller including coarse adjusting means and vernier adjusting means, means mounting said ink fountain roller including an ink fountain roller shaft, said ink fountain roller being mounted on said ink fountain roller shaft, an ink fountain carriage, said ink fountain roller shaft being mounted on said ink fountain carriage, a printing cylinder frame for carrying said printing plate cylinder and having a keyway for slidably receiving said carriage, means for adjusting the position of said ink fountain roller with respect to said printing plate cylinder comprising a gear shaft mounted on said printing plate cylinder frame, means for rotating said gear shaft, a gear mounted on said gear shaft, an elongated rack mounted on said ink fountain carriage, said gear shaft being arranged for transverse motion with respect to said rack, said gear shaft, gear and rack being arranged to position said ink fountain carriage with respect to said printing plate cylinder frame when said gear is in engagement with said rack and said gear shaft is manipulated.
Claim 8
Dependent Claim
246 words
In a flexographic press having a plurality of printing stations with each station having an ink fountain roller, a printing plate cylinder and a related impression cylinder, the combination in each station comprising means mounting each of said printing plate cylinders for individual movement bacK and forth relative to its impression cylinder, means mounting each of said ink fountain rollers for individual movement back and forth relative to its printing plate cylinder, said means mounting said ink fountain roller including coarse adjusting means and vernier adjusting means, means mounting said ink fountain roller including an ink fountain roller shaft, said ink fountain roller being mounted on said ink fountain roller shaft, an ink fountain carriage, said ink fountain roller shaft being mounted on said ink fountain carriage, a printing cylinder frame for carrying said printing plate cylinder and having a keyway for slidably receiving said carriage, means for adjusting the position of said ink fountain roller with respect to said printing plate cylinder comprising a gear shaft mounted on said printing plate cylinder frame, means for rotating said gear shaft, a gear mounted on said gear shaft, an elongated rack mounted on said ink fountain carriage, said gear shaft being arranged for transverse motion with respect to said rack, said gear shaft, gear and rack being arranged to position said ink fountain carriage with respect to said printing plate cylinder frame when said gear is in engagement with said rack and said gear shaft is manipulated.
Claim 9
Dependent Claim
151 words
A flexographic press according to claim 5 wherein said vernier adjusting means for adjusting said ink fountain roller with respect to said plate cylinder comprises a carriage adjusting shaft, said ink fountain carriage having a bore for receiving said carriage adjusting shaft in sliding motion, a releasable locking screw for locking in said carriage adjusting shaft in said bore in a preselected position, the other end of said carriage adjusting shaft having a threaded portion, said carriage adjusting nut having a circumferential groove, a bracket fixedly mounted on the plate cylinder frame and receivable in said circumferential groove to prevent longitudinal movement of said carriage adjusting nut but allowing rotational movement, said carriage adjusting nut and said carriage adjusting screw being arranged to move said ink fountain carriage with respect to said plate cylinder frame when said locking screw is in its locked position and said carriage adjusting nut is rotated.
Claim 10
Dependent Claim
168 words
A flexographic press according to claim 5 including means for adjusting the rotational position of said printing plate cylinder with respect to said impression cylinder to correct the web registration between stations comprising a main shaft mounted for rotation on a frame of said press, said impression cylinder being mounted on said main shaft, a first helical gear mounted on said main shaft, a second shaft mounted on said frame, a second helical gear mounted on said second shaft, a spur gear mounted on said second shaft, a printing plate cylinder shaft carrying said printing plate cylinder, a spur gear mounted on said printing plate cylinder shaft, gear means interconnecting said spur gear on said second shaft with the spur gear mounted on said printing plate cylinder shaft in driving relationship, said helical gears being constructed and arranged with respect to each other to cause rotational movement of the printing plate cylinder with respect to the impression cylinder responsive to rotational and axial manipulation of the second shaft.
Claim 11
Dependent Claim
172 words
In a flexographic press having a plurality of printing stations with each station having an ink fountain roller, a printing plate cylinder and a related impression cylinder, the combination in each station comprising an ink fountain roller shaft, said ink fountain roller being mounted on said ink fountain roller shaft, an ink fountain carriage, said ink fountain roller shaft being mounted on said ink fountain carriage, a printing cylinder frame for carrying said printing plate cylinder and having a keyway for slidably receiving said carriage, a gear shaft rotatably carried by said printing plate cylinder frame, a gear mounted on said gear shaft, an elongated rack mounted on said ink fountain carriage, meAns movably mounting said gear shaft on said printing plate cylinder frame for selective relative movement of said gear into and out of operative engagement with said rack means and for manipulating said gear shaft when said gear is in operative engagement with said rack to selectively position said ink fountain carriage with respect to said printing plate cylinder frame.
Claim 12
Dependent Claim
172 words
In a flexographic press having a plurality of printing stations with each station having an ink fountain roller, a printing plate cylinder and a related impression cylinder, the combination in each station comprising an ink fountain roller shaft, said ink fountain roller being mounted on said ink fountain roller shaft, an ink fountain carriage, said ink fountain roller shaft being mounted on said ink fountain carriage, a printing cylinder frame for carrying said printing plate cylinder and having a keyway for slidably receiving said carriage, a gear shaft rotatably carried by said printing plate cylinder frame, a gear mounted on said gear shaft, an elongated rack mounted on said ink fountain carriage, meAns movably mounting said gear shaft on said printing plate cylinder frame for selective relative movement of said gear into and out of operative engagement with said rack means and for manipulating said gear shaft when said gear is in operative engagement with said rack to selectively position said ink fountain carriage with respect to said printing plate cylinder frame.
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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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |