US4601242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper and ceramic composite ink metering roller
Assignee: Goss International LLC
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Filing: 1985-02-04
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Granted: 1986-07-22
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Expires: 2005-02-04
Abstract
Abstract An ink metering roller comprised of a base roller, a substantially continuous layer of oleophilic/hydrophobic material bonded on the outer surface of the base roller and a continuous outer microporous ceramic layer bonded to the oleophilic/hydrophobic layer, the ceramic layer forming the outermost layer of the base roller.
Inventors
- 👤 Thomas A. Fadner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:03
CPC Classifications
C; C23; C23C; C23C28/00; B; B41; B41N; B41N7/00; B41N7/06; B41N2207/00; B41N2207/02; B41N2207/04; B41N2207/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
94 words
An ink metering roller for use in lithographic printing comprising: (a) a base roller of suitable diameter and length having an engraved outer surface; (b) a substantially continuous layer of an oleophilic/hydrophobic material having a water contact angle of 80° or higher and an ink contact angle of 10° or lower and spreading integrally bonded to the engraved outer surface of said base roller to form a substantially uninterrupted film thereover; and (c) an outer microporous ceramic layer bonded to said oleophilic/hydrophobic layer to form the outermost layer of material on said base roller.
Claim 2
Dependent Claim
94 words
An ink metering roller for use in lithographic printing comprising: (a) a base roller of suitable diameter and length having an engraved outer surface; (b) a substantially continuous layer of an oleophilic/hydrophobic material having a water contact angle of 80° or higher and an ink contact angle of 10° or lower and spreading integrally bonded to the engraved outer surface of said base roller to form a substantially uninterrupted film thereover; and (c) an outer microporous ceramic layer bonded to said oleophilic/hydrophobic layer to form the outermost layer of material on said base roller.
Claim 3
Dependent Claim
15 words
An ink metering roller as defined in claim 1 wherein said olephilic/hydrophobic material is copper.
Claim 4
Dependent Claim
23 words
An ink metering roller as defined in claim 1 wherein said microporous ceramic layer is composed of alumina (AL 2 O 3 ).
Claim 5
Dependent Claim
29 words
An ink metering roller as defined in claim 1 wherein said oleophilic material is copper and said microporous ceramic layer is composed of alumina (Al 2 O 3 ).
Claim 6
Dependent Claim
22 words
An ink metering roller as defined in claim 4 wherein said ceramic layer ranges from about 5 to 100 microns in thickness.
Claim 7
Dependent Claim
22 words
An ink metering roller as defined in claim 4 wherein said copper layer ranges from about 0.1 to 0.5 mils in thickness.
Claim 8
Dependent Claim
30 words
An ink metering roller as defined in claim 4 wherein the alumina is applied in particle form having diameters of from about 0.5×10 -4 to 5×10 -4 inch in diameter.
Claim 9
Dependent Claim
36 words
An ink metering roller as defined in claim 1 wherein said continuous layer of oleophilic/hydrophobic material has a water contact angle of 90° or higher and an ink contact angle of 10° or lower and spreading.
Claim 10
Dependent Claim
110 words
An inking system for use in lithographic printing comprising a plurality of coacting inking rollers, one of said inking rollers being an ink metering roller comprising: (a) a base roller of suitable diameter and length having an engraved outer surface; (b) a substantially continuous layer of an oleophilic/hydrophobic material having a water contact angle or 80° or higher and an ink contact angle of 10° or lower and spreading integrally bonded to the engraved outer surface of said base roller to form a substantially uninterrupted film thereover; and (c) an outer microporous ceramic layer bonded to said oleophilic/hydrophobic layer to form the outermost layer of material on said base roller.
Claim 11
Dependent Claim
110 words
An inking system for use in lithographic printing comprising a plurality of coacting inking rollers, one of said inking rollers being an ink metering roller comprising: (a) a base roller of suitable diameter and length having an engraved outer surface; (b) a substantially continuous layer of an oleophilic/hydrophobic material having a water contact angle or 80° or higher and an ink contact angle of 10° or lower and spreading integrally bonded to the engraved outer surface of said base roller to form a substantially uninterrupted film thereover; and (c) an outer microporous ceramic layer bonded to said oleophilic/hydrophobic layer to form the outermost layer of material on said base roller.
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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) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |