Patent JP3104276B2 successfully refreshed from Google Patents.
US4490430A
Expired / Lapsed
US
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Self-supporting thermal ink
Assignee: IBM Information Products Corp
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Filing: 1983-03-28
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Granted: 1984-12-25
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Expires: 2003-03-28
Abstract
Abstract A self-supporting ink lamination is taught particularly useful for a reinking, resistive ribbon printer. In the printer, the ink is typically wound as a spool with an intermediate, separating film. The self-supporting ink is stripped from the intermediate film in the printer and brought to a reinking station of the printer using the cohesive properties of the ink.
Inventors
- 👤 Hugh T. Findlay
- 👤 Leonard M. Rood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:58
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/3825; B41M5/392; B41M5/395; C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/102; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24983; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31725
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
77 words
An ink supply of colored, solid material comprising an elongated layer at least approximately 6 microns thick flowable under heat to effect printing by a thermal printer having cohesive characteristics sufficient to permit lengthwise pulling of said ink layer as a continuous, self-supporting material to a reinking station of said printer from a location proximate to said reinking station, said layer consisting essentially of a hard, fatty acid polyamide, an elastic fatty acid polyamide, and coloring matter.
Claim 2
Dependent Claim
77 words
An ink supply of colored, solid material comprising an elongated layer at least approximately 6 microns thick flowable under heat to effect printing by a thermal printer having cohesive characteristics sufficient to permit lengthwise pulling of said ink layer as a continuous, self-supporting material to a reinking station of said printer from a location proximate to said reinking station, said layer consisting essentially of a hard, fatty acid polyamide, an elastic fatty acid polyamide, and coloring matter.
Claim 3
Dependent Claim
16 words
The ink supply as in claim 1 in which said coloring matter primarily comprises carbon black.
Claim 4
Dependent Claim
24 words
The ink supply as in claim 1 in which said ink lamination is wound in a spool with a film intermediate said ink lamination.
Claim 5
Dependent Claim
16 words
The ink supply as in claim 3 in which said coloring matter primarily comprises carbon black.
Claim 6
Dependent Claim
76 words
An ink layer at least approximately 6 microns thick flowable under heat to effect printing by a thermal printer comprising coloring matter mixed in a blend of thermoplastic materials, said materials comprising at least one hard polymer and at least one elastic polymer, and having cohesive characteristics sufficient to permit lengthwise pulling of said ink layer as a continuous, self-supported material to a reinking station of said printer from a location proximate to said reinking station.
Claim 7
Dependent Claim
76 words
An ink layer at least approximately 6 microns thick flowable under heat to effect printing by a thermal printer comprising coloring matter mixed in a blend of thermoplastic materials, said materials comprising at least one hard polymer and at least one elastic polymer, and having cohesive characteristics sufficient to permit lengthwise pulling of said ink layer as a continuous, self-supported material to a reinking station of said printer from a location proximate to said reinking station.
Claim 8
Dependent Claim
24 words
The ink supply as in claim 5 in which said ink lamination is wound in a spool with a film intermediate said ink lamination.
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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) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |