US4348464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination score tool and score anvil
Assignee: Continental Can Co Inc
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Filing: 1978-11-29
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Granted: 1982-09-07
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Expires: 1998-11-29
Abstract
Abstract A scoring tool combination wherein the score anvil is provided with a pair of transversely spaced generally rounded material compressing ribs disposed on opposite sides of the scoring rib of the score tool. The material compressing ribs compress the material of the sheet being scored on opposite sides of the score so as to strengthen the sheet and thus permit deeper scoring and lesser score residuals without failure due to cracking. The material compressing ribs also control coating damage and exposed metal areas.
Inventors
- 👤 Nick S. Khoury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
B; B21; B21D; B21D11/00; B21D11/08; B21D51/00; B21D51/16; B21D51/38; B21D51/383; B23; B23D; B23D31/00; B23D31/002; B65; B65D; B65D17/00; B65D17/28; B65D17/404; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12188; Y10T428/12194
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
63 words
The combination of a score tool and score anvil wherein said score tool has a projecting rib for effecting scoring, said anvil has an article supporting surface and two spaced apart metal compressing ribs projecting from said supporting surface and generally opposing said scoring rib, and said scoring rib being positioned intermediate said compressing ribs for initially supporting an article to be scored.
Claim 2
Dependent Claim
63 words
The combination of a score tool and score anvil wherein said score tool has a projecting rib for effecting scoring, said anvil has an article supporting surface and two spaced apart metal compressing ribs projecting from said supporting surface and generally opposing said scoring rib, and said scoring rib being positioned intermediate said compressing ribs for initially supporting an article to be scored.
Claim 3
Dependent Claim
17 words
The combination of claim 1 wherein said compressing ribs are of a rounded generally semicircular cross section.
Claim 4
Dependent Claim
21 words
The combination of claim 3 wherein said score tool has a score limiting work engaging surface generally opposing said compressing ribs.
Claim 5
Dependent Claim
21 words
The combination of claim 1 wherein said score tool has a score limiting work engaging surface generally opposing said compressing ribs.
Claim 6
Dependent Claim
18 words
The combination of claim 1 wherein said compressing ribs are of a generally wedge shaped trapezoidal cross section.
Claim 7
Independent Claim
45 words
A method of forming a weakening line in a metal sheet comprising the steps of pressing a score in one surface of the sheet, and simultaneously compressing the material of the same sheet at the opposite surface thereof and separately opposite sides of the score.
Claim 8
Independent Claim
45 words
A method of forming a weakening line in a metal sheet comprising the steps of pressing a score in one surface of the sheet, and simultaneously compressing the material of the same sheet at the opposite surface thereof and separately opposite sides of the score.
Claim 9
Dependent Claim
23 words
The method of claim 6 wherein the compressing of the sheet at the opposite surface thereof is effected by forcibly indenting the sheet.
Claim 10
Dependent Claim
44 words
The method of claim 7 wherein said sheet has a neutral axis; and said neutral axis is gently curved up towards said sheet one surface, down around the score, and then up towards said sheet one surface in the forming of the weakening line.
Claim 11
Dependent Claim
55 words
A scored sheet comprising a metal sheet having a weakening line therein defined by a score pressed into one surface of said sheet, and said sheet having the material thereof separately compressively stressed on opposite sides of said score by an inwardly depressing of the sheet at two spaced locations on the opposite surface thereof.
Claim 12
Dependent Claim
55 words
A scored sheet comprising a metal sheet having a weakening line therein defined by a score pressed into one surface of said sheet, and said sheet having the material thereof separately compressively stressed on opposite sides of said score by an inwardly depressing of the sheet at two spaced locations on the opposite surface thereof.
Claim 13
Dependent Claim
44 words
The scored sheet of claim 9 wherein said sheet has a neutral axis; and said neutral axis gently curves up towards said sheet one surface, down around the score, and then up towards said sheet one surface in the forming of the weakening line.
Claim 14
Dependent Claim
30 words
The score sheet of claim 10 wherein said sheet has flow lines therein when viewed in section normal to said score with said flow lines generally paralleling said neutral axis.
Claim 15
Independent Claim
59 words
A method of forming a weakening line in a metal sheet to facilitate later controlled fracture of said metal sheet along said weakening line, said method comprising the steps of compressing one surface of a metal sheet on opposite sides of a preselected intended line of fracture, and scoring the opposite surface of the sheet between said compressed areas.
Claim 16
Independent Claim
59 words
A method of forming a weakening line in a metal sheet to facilitate later controlled fracture of said metal sheet along said weakening line, said method comprising the steps of compressing one surface of a metal sheet on opposite sides of a preselected intended line of fracture, and scoring the opposite surface of the sheet between said compressed areas.
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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) | 1985-09-06 | 1986-03-08 | 1986-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-06 | 1990-03-08 | 1990-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-06 | 1994-03-08 | 1994-09-07 | $7700.00 | Window Closed / Lapsed |