Patent EP0091779A2 successfully refreshed from Google Patents.
Patent US3589288A successfully refreshed from Google Patents.
US3589288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink fountain for dispensing packaged ink
Assignee: AB Dick Co
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Filing: 1969-04-03
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Granted: 1971-06-29
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Expires: 1989-04-03
Abstract
Abstract An ink fountain for a printing or duplicating machine for use with packaged ink whereby the package, which has a flexible wall, is placed into the fountain and the ink is dispensed under pressure from the package directly to an ink fountain roller. The pressure causes a bead of ink to be formed under the flexible wall, and the amount of pressure permits the wall to assume a distended position or a retracted position indicative of the amount of ink in the ready supply of ink adjacent the fountain roller. A sensing means is provided for continuously detecting the position of the flexible wall during machine operation. Power means actuates a mechanical means to force ink from the package into the bead and toward the fountain roller when the sensing means detects the retracted position of the flexible wall of the package and deactuates the mechanical means to terminate movement of the ink from the package into the ready supply when the sensing means detects the distended position of the flexible wall of the package.
Inventors
- 👤 Francis K Lake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:14
CPC Classifications
B; B41; B41F; B41F31/00; B41F31/02; B41F31/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
282 words
A device for dispensing ink in a printing machine which comprises: an ink fountain roller; a squeezable ink package with walls of supple material substantially equal in length to the fountain roller, having a dispensing mouth running the length thereof along one side whose margins are in continual contact with the surface of the fountain roller, said package including adjacent the dispensing mouth a supple wall portion in enclosing intimate contact with the surface of the contained ink; pressure means overlying the package for applying a progressive squeezing action along the entire length of the package to move the ink therein towards the dispensing mouth of the package and the fountain roller, said pressure means terminating short of the fountain roller to provide an open space between the pressure means and the ink fountain roller to expose a portion of said supple ink contacting wall portion of the package to permit its distension and retraction in response to the amount of ink adjacent the fountain roller; sensing means riding on said ink contacting wall portion in the open space between the pressure means and the ink fountain roller for detecting the position of the wall portion and giving an indication thereof; power means for actuating said pressure means; and means, responsive to an indication from said sensing means that the ink contacting wall portion is in retracted position for activating said power means to cause the pressure means to apply a squeezing action to the package, and responsive to an indication from said sensing means that said ink contacting wall portion is in distended position for deactivating said power means to terminate the squeezing action of the pressure means on the package.
Claim 2
Independent Claim
282 words
A device for dispensing ink in a printing machine which comprises: an ink fountain roller; a squeezable ink package with walls of supple material substantially equal in length to the fountain roller, having a dispensing mouth running the length thereof along one side whose margins are in continual contact with the surface of the fountain roller, said package including adjacent the dispensing mouth a supple wall portion in enclosing intimate contact with the surface of the contained ink; pressure means overlying the package for applying a progressive squeezing action along the entire length of the package to move the ink therein towards the dispensing mouth of the package and the fountain roller, said pressure means terminating short of the fountain roller to provide an open space between the pressure means and the ink fountain roller to expose a portion of said supple ink contacting wall portion of the package to permit its distension and retraction in response to the amount of ink adjacent the fountain roller; sensing means riding on said ink contacting wall portion in the open space between the pressure means and the ink fountain roller for detecting the position of the wall portion and giving an indication thereof; power means for actuating said pressure means; and means, responsive to an indication from said sensing means that the ink contacting wall portion is in retracted position for activating said power means to cause the pressure means to apply a squeezing action to the package, and responsive to an indication from said sensing means that said ink contacting wall portion is in distended position for deactivating said power means to terminate the squeezing action of the pressure means on the package.
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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 |