Patent US4024045A successfully refreshed from Google Patents.
US4024045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Master pattern cylinder
Assignee: Fritz Buser AG Maschinenfabrik
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Filing: 1976-03-04
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Granted: 1977-05-17
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Expires: 1996-03-04
Abstract
Abstract A matrix usable for producing perforated nickel sleeves and the method for making the matrix. The matrix comprises a roller body and a sleeve detachably surrounding the roller body, the sleeve being provided with conductive and non-conductive portions. The mating surface between the roller body and sleeve is disclosed as frustum-shaped, and alternatively as a cylinder.
Inventors
- 👤 Hans Thierstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:23
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/02; B; B41; B41C; B41C1/00; B41C1/14; B41C1/142
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
55 words
A matrix usable for producing perforated nickel sleeves by electrolytic deposition, said matrix comprising: a roller body; and a sleeve detachably surrounding said roller body and provided with electrically conductive and non-conductive portions: whereby the inner surface of said sleeve and the surface of said roller body form an adhesive, but non-destructive detachable surface support.
Claim 2
Dependent Claim
55 words
A matrix usable for producing perforated nickel sleeves by electrolytic deposition, said matrix comprising: a roller body; and a sleeve detachably surrounding said roller body and provided with electrically conductive and non-conductive portions: whereby the inner surface of said sleeve and the surface of said roller body form an adhesive, but non-destructive detachable surface support.
Claim 3
Dependent Claim
28 words
The matrix according to claim 1 wherein said surface of said roller body and said inner surface of said sleeve are matching frustum-shaped surfaces with a slight slope.
Claim 4
Dependent Claim
15 words
The matrix according to claim 2 wherein said slope is in the range of 3500-2500:1.
Claim 5
Dependent Claim
22 words
The matrix according to claim 1 wherein said surface support is cylindrical and said roller body is expandable relative to said sleeve.
Claim 6
Dependent Claim
21 words
The matrix according to claim 1 and further comprising a separating layer of material between said roller body and said sleeve.
Claim 7
Dependent Claim
14 words
The matrix according to claim 5 wherein said separating layer is formed of chromium.
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) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |