Patent US3690252A successfully refreshed from Google Patents.
US3690252A
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Lithographic inking apparatus
Assignee: Xerox Corp
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Filing: 1969-11-20
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Granted: 1972-09-12
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Expires: 1989-11-20
Abstract
Abstract An apparatus for applying an ink and water fountain solution to a surface bearing areas of ink receptivity in image configuration and areas of water receptivity in non-image areas to provide a master for printing duplicate copies of subject matter. The ink and water fountain solution are respectively absorbed in separate diverse webs of material whereupon each of the webs may be separately stored in roll form until needed for printing. The material of the ink web and the water web is progressively unreeled into pressure contact with the master surface to apply ink to the image configuration and water to the non-image areas.
Inventors
- 👤 David A Sokolov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:52
CPC Classifications
B; B41; B41F; B41F7/00; B41F7/02; B41F7/20; B41F7/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
125 words
In a printing apparatus for applying an ink and an ink immiscible fluid to a receiving surface comprising a first storage medium adapted to retain ink for release of quantities of ink to a receiving surface upon application of pressure thereto, a second storage medium separately maintained from said first storage medium retaining a supply of ink immiscible fluid for release of quantities of ink immiscible fluid to the receiving surface upon application of pressure thereto, and ink and fluid release means including surface means to support an increment of each of said webs in superimposed relationship to apply pressure to the respective increments of said first storage medium and said second storage medium to release ink and ink immiscible fluid to the receiving surface.
Claim 2
Dependent Claim
125 words
In a printing apparatus for applying an ink and an ink immiscible fluid to a receiving surface comprising a first storage medium adapted to retain ink for release of quantities of ink to a receiving surface upon application of pressure thereto, a second storage medium separately maintained from said first storage medium retaining a supply of ink immiscible fluid for release of quantities of ink immiscible fluid to the receiving surface upon application of pressure thereto, and ink and fluid release means including surface means to support an increment of each of said webs in superimposed relationship to apply pressure to the respective increments of said first storage medium and said second storage medium to release ink and ink immiscible fluid to the receiving surface.
Claim 3
Dependent Claim
40 words
The apparatus of claim 1 wherein the superimposed increment of said webs are interposed between the pressure contact of said surface means and the receiving surface to release ink and ink immiscible fluid from said increment of said webs respectively.
Claim 4
Dependent Claim
19 words
The apparatus of claim 1 further comprising means to advance each of said webS relative to the surface means.
References Cited (Backward Citations)
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Cited
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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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |