Patent US1581946A successfully refreshed from Google Patents.
US3259062A
Expired / Lapsed
US
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Process for applying a water-soluble organic dampening fluid
Assignee: Individual
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Filing: 1964-11-30
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Granted: 1966-07-05
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Expires: 1984-11-30
Abstract
No abstract record available.
Inventors
- 👤 Harold P Dahlgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:41
CPC Classifications
B; B41; B41F; B41F7/00; B41F7/20; B41F7/24; B41F7/36; B41F7/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A PROCESS FOR DAMPENING THE PLATE ON A LITHOGRAPHIC PRESS COMPRISING THE STEPS OF: PROVIDING A TRANSFER ROLLER HAVING A CONTINUOUS, UNINTERRUPTED, HARD, POLISHED, HYDROPHLIC SURFACE THEREON; APPLYING A FILM OF A WATER SOLUBLE, VOLATILE ORGANIC, INK RECEPTIVE DAMPERNING FLUID TO THE SURFACE OF THE TRANSFER ROLLER AS IT ROTATES; ROTATING THE FILM OF DAMPENING FLUID IN CONTACT WITH AN INK COATING ON THE SURFACE OF A CYLINDRICAL MEMBER TO DIVIDE THE FILM OF DAMPENING FLUID AND DEPOSIT A PORTION THEREOF ON THE SURFACE OF THE INK COATING; ROTATING THE CYLINDERICAL MEMBER IN CONTACT WITH LITHOGRAPHIC PRINTING PLATE; THE CYLINDRICAL MEMBER AND TRANSFER ROLLER BEING ROTATED AT DIFFERENT SURFACE SPEEDS TO CAUSE SLIPPAGE THEREBETWEEN AT THEIR TANGENT POINT.
Claim 2
Dependent Claim
118 words
A PROCESS FOR DAMPENING THE PLATE ON A LITHOGRAPHIC PRESS COMPRISING THE STEPS OF: PROVIDING A TRANSFER ROLLER HAVING A CONTINUOUS, UNINTERRUPTED, HARD, POLISHED, HYDROPHLIC SURFACE THEREON; APPLYING A FILM OF A WATER SOLUBLE, VOLATILE ORGANIC, INK RECEPTIVE DAMPERNING FLUID TO THE SURFACE OF THE TRANSFER ROLLER AS IT ROTATES; ROTATING THE FILM OF DAMPENING FLUID IN CONTACT WITH AN INK COATING ON THE SURFACE OF A CYLINDRICAL MEMBER TO DIVIDE THE FILM OF DAMPENING FLUID AND DEPOSIT A PORTION THEREOF ON THE SURFACE OF THE INK COATING; ROTATING THE CYLINDERICAL MEMBER IN CONTACT WITH LITHOGRAPHIC PRINTING PLATE; THE CYLINDRICAL MEMBER AND TRANSFER ROLLER BEING ROTATED AT DIFFERENT SURFACE SPEEDS TO CAUSE SLIPPAGE THEREBETWEEN AT THEIR TANGENT POINT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |