US3570337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper scoring apparatus
Assignee: Morgan Adhesives Co
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Filing: 1967-12-11
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Granted: 1971-03-16
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Expires: 1987-12-11
Abstract
Abstract Apparatus for scoring paper and other sheet materials including a pair of cylindrical metal rolls associated for pressure engagement with a sheet passed between the roll bight. One of the rolls is smooth surfaced, but the other roll carries one or more small diameter metal wires thereon secured to the surface of the second roll whereby the material passed between the roll bight is scored and/or weakened in the area thereof contacting the wire to facilitate later tearing of the paper at the scored line.
Inventors
- 👤 Burton D Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:54
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; G09F3/0291; G09F3/0292; B; B26; B26D; B26D1/00; B26D1/0006; B26D3/00; B26D3/08; B26D3/085; B29; B29C; B29C55/00; B29C55/02; B29C55/04; B29C55/06; B31; B31F; B31F1/00; B31F1/08; B31F1/10; B26D2001/0086; B29C37/00; B29C37/0053; B29C37/0057; B31B; B31B50/00; B31B50/25; B31B50/254; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/307; Y10T225/321; Y10T83/00; Y10T83/02; Y10T83/0333; Y10T83/0385; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4824; Y10T83/4827; Y10T83/929; Y10T83/9372; Y10T83/9394; Y10T83/9408
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
138 words
Apparatus for scoring paper and other sheet materials including a pair of cylindrical metal rolls operatively positioned to form a bight therebetween for pressure engagement with a sheet passed therebetween and characterized by: one of said rolls being smooth surfaced, and a small diameter metal wire secured to the second of said rolls and extending from the surface thereof whereby the material in a sheet of material passed through said roll bight is weakened by such wire in the area thereof contacting said wire to form a potential tear line in the processed material, said second roll having small recesses formed therein under longitudinally spaced portions of said wire for receiving such spaced portions of said wire to prevent said wire from weakening a sheet in a continuous line therein when the sheet is passed between said rolls.
Claim 2
Dependent Claim
138 words
Apparatus for scoring paper and other sheet materials including a pair of cylindrical metal rolls operatively positioned to form a bight therebetween for pressure engagement with a sheet passed therebetween and characterized by: one of said rolls being smooth surfaced, and a small diameter metal wire secured to the second of said rolls and extending from the surface thereof whereby the material in a sheet of material passed through said roll bight is weakened by such wire in the area thereof contacting said wire to form a potential tear line in the processed material, said second roll having small recesses formed therein under longitudinally spaced portions of said wire for receiving such spaced portions of said wire to prevent said wire from weakening a sheet in a continuous line therein when the sheet is passed between said rolls.
Claim 3
Dependent Claim
39 words
Apparatus as in claim 1 where a plurality of said wires are secured to said second roll and all of said wires extend the length of said roll and said wires are of helical shape on said second roll.
Claim 4
Dependent Claim
66 words
Apparatus for scoring fibrous sheets, such as paper, as in claim 1 where said wire extends from end to end of said second roll, said wire being suitably secured to such roll at the roll ends by portions of the wire that extend onto the end surfaces of such roll, said wire also being suitably secured to such roll at longitudinally spaced portions of the wire.
Claim 5
Dependent Claim
30 words
Apparatus as in claim 1 where said recesses are of a depth and size as to receive said portions of said wire therein within the periphery of said second roll.
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |