US3589287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotogravure ink fountain with cover-lifting system
Assignee: WOOD INDUSTRIES Inc
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Filing: 1968-05-20
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Granted: 1971-06-29
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Expires: 1988-05-20
Abstract
Abstract An ink fountain for a rotogravure press which is pivotally mounted and can be tilted down away from the printing cylinder for cleaning the fountain pan or changing the cylinder. A cover system for enclosing the cylinder when the pan is in its operative position and which will automatically cam off or lift away from the cylinder as the pan is lowered away from it. The cover system is hinged to the pan and can be swung away from the pan so as to uncover the pan and cylinder for easy cleaning and replacement.
Inventors
- 👤 Richard Woessner
- 👤 Jack Bryer
- 👤 Christopher Pall
- 👤 Alexander Benda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:08
CPC Classifications
B; B41; B41F; B41F31/00; B41F31/02; B41F31/06; B41F31/07
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
248 words
An ink fountain for a printing press having a printing cylinder mounted for rotation on a shaft extending outwardly from the ends thereof, said ink fountain comprising: a. a pan for containing ink into which said cylinder is adapted to be partially immersed, said pan comprising: 1. a bottom underlying said cylinder, 2. front and back walls extending upwardly from said bottom and generally parallel to the longitudinal axis of said cylinder on opposite sides thereof, and 3. sidewalls extending upwardly from said bottom at the opposite ends of said cylinder; b. pan support means for mounting said pan for movement between an upper position in which said cylinder is partially immersed in said ink and a lower position, said pan support means supporting said pan for pivoting movement about an axis disposed adjacent said back wall and extending parallel to the shaft of said cylinder; c. a fountain cover pivotally mounted at the front wall of said pan for movement between a first position covering the upper front portion of said cylinder and a second position exposing said cylinder and the interior of said pan; and d. cam means connected to said pan and having a first cam surface engaging and riding on the shaft of said cylinder and a second cam surface engaging and supporting said fountain cover when in said first position, said cam surfaces being shaped to pivot said fountain cover toward its second position upon movement of said pan toward its lower position.
Claim 2
Dependent Claim
248 words
An ink fountain for a printing press having a printing cylinder mounted for rotation on a shaft extending outwardly from the ends thereof, said ink fountain comprising: a. a pan for containing ink into which said cylinder is adapted to be partially immersed, said pan comprising: 1. a bottom underlying said cylinder, 2. front and back walls extending upwardly from said bottom and generally parallel to the longitudinal axis of said cylinder on opposite sides thereof, and 3. sidewalls extending upwardly from said bottom at the opposite ends of said cylinder; b. pan support means for mounting said pan for movement between an upper position in which said cylinder is partially immersed in said ink and a lower position, said pan support means supporting said pan for pivoting movement about an axis disposed adjacent said back wall and extending parallel to the shaft of said cylinder; c. a fountain cover pivotally mounted at the front wall of said pan for movement between a first position covering the upper front portion of said cylinder and a second position exposing said cylinder and the interior of said pan; and d. cam means connected to said pan and having a first cam surface engaging and riding on the shaft of said cylinder and a second cam surface engaging and supporting said fountain cover when in said first position, said cam surfaces being shaped to pivot said fountain cover toward its second position upon movement of said pan toward its lower position.
Claim 3
Dependent Claim
24 words
front and back walls extending upwardly from said bottom and generally parallel to the longitudinal axis of said cylinder on opposite sides thereof, and
Claim 4
Dependent Claim
24 words
front and back walls extending upwardly from said bottom and generally parallel to the longitudinal axis of said cylinder on opposite sides thereof, and
Claim 5
Dependent Claim
104 words
An ink fountain according to claim 1 further comprising: a. ink supply means mounted on the backwall of said pan; b. an ink drain disposed at the front wall of said pan; c. outer sidewalls extending upwardly from the bottom of said pan and spaced outwardly from said first mentioned sidewalls to define a well for receiving ink dripping from said cylinder; d. means for connecting said well to said drain; and e. an opening in each of the first-mentioned sidewalls adjacent the backwall of the pan to provide a path for ink in said fountain extending through said well and to said drain.
Claim 6
Dependent Claim
12 words
said cap cover having connected thereto said first and second cam surfaces.
Claim 7
Dependent Claim
12 words
said cap cover having connected thereto said first and second cam surfaces.
Claim 8
Dependent Claim
75 words
An ink fountain according to claim 2 wherein: a. said pan has upwardly sloped bottom toward the front wall to an overflow point which drops off into the drain running longitudinally along the bottom of said pan whereby a constant level of ink is maintained in said pan in its upper position and whereby all the ink in said pan is drained off into said drain when said pan is moved to its lower position.
Claim 9
Dependent Claim
170 words
sidewalls extending upwardly from said bottom at the opposite ends of said cylinder; b. pan support means for mounting said pan for movement between an upper position in which said cylinder is partially immersed in said ink and a lower position, said pan support means supporting said pan for pivoting movement about an axis disposed adjacent said back wall and extending parallel to the shaft of said cylinder; c. a fountain cover pivotally mounted at the front wall of said pan for movement between a first position covering the upper front portion of said cylinder and a second position exposing said cylinder and the interior of said pan; and d. cam means connected to said pan and having a first cam surface engaging and riding on the shaft of said cylinder and a second cam surface engaging and supporting said fountain cover when in said first position, said cam surfaces being shaped to pivot said fountain cover toward its second position upon movement of said pan toward its lower position.
Claim 10
Dependent Claim
170 words
sidewalls extending upwardly from said bottom at the opposite ends of said cylinder; b. pan support means for mounting said pan for movement between an upper position in which said cylinder is partially immersed in said ink and a lower position, said pan support means supporting said pan for pivoting movement about an axis disposed adjacent said back wall and extending parallel to the shaft of said cylinder; c. a fountain cover pivotally mounted at the front wall of said pan for movement between a first position covering the upper front portion of said cylinder and a second position exposing said cylinder and the interior of said pan; and d. cam means connected to said pan and having a first cam surface engaging and riding on the shaft of said cylinder and a second cam surface engaging and supporting said fountain cover when in said first position, said cam surfaces being shaped to pivot said fountain cover toward its second position upon movement of said pan toward its lower position.
Claim 11
Dependent Claim
86 words
An ink fountain according to claim 1 further comprising: a. outer sidewalls extending upwardly from the bottom of said pan and spaced outwardly from said first-mentioned sidewalls to define a well for receiving ink dripping from said cylinder; b. a well cover removably fitted over each of said wells, said well covers extending from the front wall of the pan toward the cylinder; and c. a top cap hinged to said well cover adjacent the cylinder for pivoting movement about an axis parallel to the cylinder,
Claim 12
Dependent Claim
87 words
An ink fountain according to claim 4 wherein sAid pan support means comprises: a. a support arm underlying said pan and pivotally mounted for movement about said axis; b. a plurality of support blocks mounted on the underside of said pan; and c. a plurality of adjusting screws supporting the blocks on said arm, said screws being adjustable to raise and lower the position of the pan on said support arm to vary the depth of immersion of the cylinder in the ink contained in said pan.
Claim 13
Dependent Claim
48 words
An ink fountain according to claim 5 further comprising: a. a backer cover pivotally mounted adjacent the backwall of said pan for movement between a first position covering the upper back portion of said cylinder and a second position exposing said cylinder and the interior of said pan.
Claim 14
Dependent Claim
35 words
An ink fountain according to claim 6 wherein: a. said fountain cover and said backer cover are each provided with a handle for manually swinging said covers away from said cylinder to thereby expose it.
Claim 15
Dependent Claim
35 words
An ink fountain according to claim 7 further comprising: a. a backer blade supported by said backer cover in said pan in contact with said cylinder surface for scraping said surface clean of excess ink.
Claim 16
Dependent Claim
42 words
An ink fountain according to claim 8 further comprising: a. an adjustable collar for said cylinder connected to each of said sidewalls so that said pan can be fitted to a variety of cylinder diameters by varying the position of said collar.
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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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |