US3630146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interruptable inking cylinder and scraper blade forming open ended fountain trough
Assignee: S&S Corrugated Paper Machinery Co Inc
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Filing: 1970-02-04
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Granted: 1971-12-28
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Expires: 1990-02-04
Abstract
Abstract Printing apparatus is constructed with an open-ended troughlike fountain defined by an anilox inking cylinder, a scraper blade, and a rigid support for the scraper blade. A plurality of fluidoperated power cylinders mounted directly to a common elongated manifold urge the scraper blade against the inking cylinder. A pan positioned below the fountain is shaped to catch ink flowing out of the fountain through the open ends thereof and direct such ink to the inlet of a pump which then directs the ink to a nozzle positioned above the fountain at a point midway between the ends thereof. The blade is constructed of a nonmetallic material to reduce wear of the anilox roll and improve uniformity of the ink film. Automatic means responsive to stopping of the printing cylinder moves the pressure cylinder away from the printing cylinder and also moves the entire troughlike fountain including the inking cylinder, away from the printing cylinder. An idler motor for the inking cylinder is connectable to drive all three cylinders for use in making proof prints.
Inventors
- 👤 Albert F Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:13
CPC Classifications
B; B41; B41F; B41F31/00; B41F31/02; B41F31/04; B41F31/30; B41F31/32; B41F31/36
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
224 words
Printing apparatus comprising a printing cylinder; a pressure cylinder disposed to urge sheet material passing between said cylinders into operative engagement with said printing cylinder; an inking cylinder in operative engagement with said printing cylinder for transferring ink thereto; means mounting said cylinders for rotation about their longitudinal axes with said axes positioned substantially parallel and horizontal; blade means extending parallel to said axes and having an edge thereof in engagement with said inking cylinder along a line parallel to said axes; said blade means being disposed at an acute angle to the tangent extending from said line in the direction of rotation for said inking cylinder; a support means to which said blade means is mounted; said blade means, said support means, and said inking cylinder cooperating to form a troughlike fountain having end openings through which ink flows out of said fountain to maintain ink circulation therein; first means for supplying ink to said fountain to a level above said line; an common movable mounting means to which both said inking cylinder and said support means are mounted, whereby said blade means and said inking cylinder move in unison so that the operative relationship between said blade means and said inking cylinder remains unchanged as said mounting means is operated to move said inking cylinder toward and away from said printing cylinder.
Claim 2
Dependent Claim
224 words
Printing apparatus comprising a printing cylinder; a pressure cylinder disposed to urge sheet material passing between said cylinders into operative engagement with said printing cylinder; an inking cylinder in operative engagement with said printing cylinder for transferring ink thereto; means mounting said cylinders for rotation about their longitudinal axes with said axes positioned substantially parallel and horizontal; blade means extending parallel to said axes and having an edge thereof in engagement with said inking cylinder along a line parallel to said axes; said blade means being disposed at an acute angle to the tangent extending from said line in the direction of rotation for said inking cylinder; a support means to which said blade means is mounted; said blade means, said support means, and said inking cylinder cooperating to form a troughlike fountain having end openings through which ink flows out of said fountain to maintain ink circulation therein; first means for supplying ink to said fountain to a level above said line; an common movable mounting means to which both said inking cylinder and said support means are mounted, whereby said blade means and said inking cylinder move in unison so that the operative relationship between said blade means and said inking cylinder remains unchanged as said mounting means is operated to move said inking cylinder toward and away from said printing cylinder.
Claim 3
Dependent Claim
64 words
Printing apparatus as set forth in claim 1 in which said first means comprises pump means and an outlet nozzle positioned above said fountain; second means constructed to direct ink to said pump means which in turn moves this ink toward said nozzle; said nozzle being positioned to supply ink to said fountain at a single region located intermediate the ends of said fountain.
Claim 4
Dependent Claim
57 words
Printing apparatus as set forth in claim 1, in which there is a second means positioned to catch ink flowing out of said fountain through the end openings thereof; said second means including a pan having a bottom interior surface shaped and positioned to direct ink flow by means of gravity to an outlet of said pan.
Claim 5
Dependent Claim
39 words
Printing apparatus as set forth in claim 1, in which said support is elongated and rigid; fluid pressure means acting at longitudinally spaced locations along said support to urge said edge of said blade means against said inking cylinder.
Claim 6
Dependent Claim
53 words
Printing apparatus as set forth in claim 4, in which said fluid pressure means comprises an elongated manifold, a plurality of power cylinders mounted directly to said manifold, and a plurality of pistons each mounted in an individual one of said power cylinders for limited movement transverse to the length of said manifold.
Claim 7
Dependent Claim
32 words
Printing apparatus as set forth in claim 1 in which said blade means is constructed of a strip of nonmetallic material; said nonmetallic material being a compound whose main constituent is nylon.
Claim 8
Dependent Claim
97 words
Printing apparatus as set forth in claim 1, also comprising means for connecting said cylinders to a main source of driving power to rotate said cylinders at adjustable normal operational speeds; an idler motor for rotating said inking cylinder when the main source of power is operatively disconnected from said cylinders; clutch means for selectively connecting and disconnecting said pressure and said printing cylinders to said idler motor whereby said idler motor may be used to drive all of said cylinders to obtain proof prints when said main source of power is operatively disconnected from said cylinders.
Claim 9
Dependent Claim
22 words
Printing apparatus as set forth in claim 7 in which said inking cylinder is provided with an outer surface that is etched.
Claim 10
Dependent Claim
42 words
Printing apparatus as set forth in claim 1, also comprising means connected to said mounting means and said pressure cylinder to automatically move said inking and said pressure cylinders away from said printing cylinder when rotation of said printing cylinder is stopped.
Claim 11
Dependent Claim
49 words
Printing apparatus as set forth in claim 1, in which said support means includes a blade holder, a support, securing means and clamping means securing said blade means directly to said holder; said securing means removably mounting said holder and said blade means, as a unit, to said support.
References Cited (Backward Citations)
US1364598A
Cited
US1825999A
Cited
US2109768A
Cited
US2310788A
Cited
US2891471A
Cited
US3060853A
Cited
US3026796A
Cited
US3196787A
Cited
US3221651A
Cited
US3288061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |