US3814014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inker
Assignee: Individual
•
Filing: 1972-05-04
•
Granted: 1974-06-04
•
Expires: 1992-05-04
Abstract
Abstract An inker for applying ink to a printing plate comprising a primary inker arranged to apply ink to a storage pad on the plate cylinder in combination with a secondary inker arranged to transfer ink from the storage pad to the printing plate. The storage pad is raised such that the primary inker engages same without contacting the printing plate.
Inventors
- 👤 H Dahlgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:18
CPC Classifications
B; B41; B41F; B41F21/00; B41F21/08; B41F13/00; B41F13/08; B41F13/24; B41F13/34; B41F13/36; B41F31/00; B41F31/30; B41F31/301; B41P; B41P2213/00; B41P2213/70; B41P2213/73; B41P2213/734
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
238 words
In a sheet-fed printing press, a feeder station; a delivery station; at least one cylinder support, including spaced side members intermediate the feeder and delivery stations; a plate cylinder journaled between the side members; a plate on the plate cylinder; a blanket cylinder journaled between the side members; a blanket on the blanket cylinder in rotative contact with the plate; an impression cylinder adjacent the blanket cylinder; an ink receptive storage pad on said plate cylinder; a primary ink carrying applicator roller; mounting means arranged to urge said applicator roller into rolling engagement with the pad for supplying an ink film to said pad, said mounting means being adapted to maintain the surface of the primary ink carrying applicator roller spaced from the surface of the plate; a secondary inker comprising at least one form roller; mounting means arranged to position said form roller to move into engagement with said pad and with the plate whereby an ink film is transferred from the ink pad to the form roller which subsequently replenishes ink to the plate; continuous sheet transfer means movably extending from the feeder station to the delivery station; gripper members carried by the sheet transfer means adapted to receive and grip the edge of a sheet at the feeder station and continuously convey same, between the surfaces of the blanket cylinder and the impression cylinder to the delivery station; and means to rotate the said cylinders.
Claim 2
Dependent Claim
238 words
In a sheet-fed printing press, a feeder station; a delivery station; at least one cylinder support, including spaced side members intermediate the feeder and delivery stations; a plate cylinder journaled between the side members; a plate on the plate cylinder; a blanket cylinder journaled between the side members; a blanket on the blanket cylinder in rotative contact with the plate; an impression cylinder adjacent the blanket cylinder; an ink receptive storage pad on said plate cylinder; a primary ink carrying applicator roller; mounting means arranged to urge said applicator roller into rolling engagement with the pad for supplying an ink film to said pad, said mounting means being adapted to maintain the surface of the primary ink carrying applicator roller spaced from the surface of the plate; a secondary inker comprising at least one form roller; mounting means arranged to position said form roller to move into engagement with said pad and with the plate whereby an ink film is transferred from the ink pad to the form roller which subsequently replenishes ink to the plate; continuous sheet transfer means movably extending from the feeder station to the delivery station; gripper members carried by the sheet transfer means adapted to receive and grip the edge of a sheet at the feeder station and continuously convey same, between the surfaces of the blanket cylinder and the impression cylinder to the delivery station; and means to rotate the said cylinders.
Claim 3
Dependent Claim
94 words
The combination called for in claim 1 wherein the primary inker comprises, a resilient transfer roller; means to rotatably secure said transfer roller between said spaced side members in pressure indented relation with said primary ink carrying applicator roller; a rigid doctor blade; means to secure said doctor blade in pressure contact with said transfer roller; means to apply ink to the surface of the transfer roller; and means to rotate the transfer roller such that ink on the surface of the transfer roller is metered to a uniform film by the doctor blade.
Claim 4
Dependent Claim
137 words
In a device for inking the plate on the plate cylinder on a printing press, support means for securing the device relative to the plate cylinder; an ink storage pad covering a portion of the surface of the plate cylinder; a primary inker secured to the support means; ductor means in said primary inker arranged to prevent direct transfer of ink from said primary inker to said plate adapted to apply a metered ink film to the storage pad; a secondary inker secured to the support means having an ink form roller positioned to roll into contact with the pad and with the plate, said form roller being arranged to transfer the metered ink film from the ink storage pad to the plate; and means to drive said plate cylinder, said primary inker and said secondary inker.
Claim 5
Dependent Claim
137 words
In a device for inking the plate on the plate cylinder on a printing press, support means for securing the device relative to the plate cylinder; an ink storage pad covering a portion of the surface of the plate cylinder; a primary inker secured to the support means; ductor means in said primary inker arranged to prevent direct transfer of ink from said primary inker to said plate adapted to apply a metered ink film to the storage pad; a secondary inker secured to the support means having an ink form roller positioned to roll into contact with the pad and with the plate, said form roller being arranged to transfer the metered ink film from the ink storage pad to the plate; and means to drive said plate cylinder, said primary inker and said secondary inker.
Claim 6
Dependent Claim
23 words
The combination called for in claim 3 wherein said primary inker comprises at least one applicator roller arranged to engage the storage pad.
Claim 7
Dependent Claim
75 words
The combination called for in claim 4 wherein the primary inker comprises, at least one transfer roller rotatably secured to said support means; a doctor blade; means to movably secure the doctor blade to said support means; means to positiOn said transfer roller in pressure contact with the outer edge of the doctor blade; and means to intermittently contact the surface of the applicator roller with the surface of the transfer roller and the pad.
Claim 8
Dependent Claim
49 words
The combination called for in claim 5 with the addition of means for adjusting pressure between the surface of the transfer roller and the doctor blade to vary the thickness of the ink film over the length of the transfer roller, and to provide lateral distribution of ink thereon.
Claim 9
Dependent Claim
35 words
The combination called for in claim 5 with the addition of means for varying pressure uniformly over the length of the transfer roller whereby the ink film thickness may be regulated without disturbing lateral distribution.
Claim 10
Dependent Claim
45 words
The combination called for in claim 5 with the addition of means for varying the surface speed of the transfer roller relative to the surface speed of the ink storage pad for regulating the thickness of the ink film applied to the ink storage pad.
Claim 11
Dependent Claim
53 words
The combination called for in claim 4 with the addition of means to position the ink pad such that said ink pad is raised with respect to the plate whereby the applicator roller of the primary inker is in rolling contact with the ink pad but is not in contact with the plate.
Claim 12
Dependent Claim
57 words
The combination called for in claim 3 with the addition of a blanket cylinder rotatably journaled in said printing press; a blanket detachably secured to said blanket cylinder, said blanket cylinder having a recessed area in the surface thereof such that the ink pad enters said recessed area as it rotates, but does not contact the blanket.
Claim 13
Dependent Claim
67 words
The combination called for in claim 3 wherein the secondary inker includes a plurality of form rollers; at least one vibrator roller in pressure rolling contact with at least two of said form rollers; and means for positioning each form roller to roll into contact with the ink storage pad and with the plate for transferring an ink film from the ink storage pad to the plate.
Claim 14
Dependent Claim
65 words
The combination called for in claim 11 with the addition of a plurality of sets of spaced form roller hangers adjustably secured to the mounting means; a form roller rotatably journaled in each set of hangers; and means for moving said hangers toward and away from the plate cylinder to adjust pressure between the surfaces of the form rollers and the plate and ink pad.
Claim 15
Dependent Claim
37 words
The combination called for in claim 4 with the addition of at least one bridge roller arranged to transfer ink from the application roller of the primary inker to the ink form roller of the secondary inker.
Claim 16
Dependent Claim
24 words
The combination called for in claim 1 with the addition of means to rotate the applicator roller and plate cylinder at different surface speeds.
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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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |