US3735674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation of creases in board in or for the manufacture of carton blanks
Assignee: Alf Cooke Ltd
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Filing: 1971-06-25
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Granted: 1973-05-29
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Expires: 1991-06-25
Abstract
Abstract The formation of creases in carton blank board wherein each crease is defined by a pair of closely spaced parallel crease lines. The said pair of lines is formed by the edges of a pair of spaced creasing rules which press the board against a creasing machine platen.
Inventors
- 👤 G Haddock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:49
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/25; B31B50/252
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
70 words
A creasing forme for a board creasing machine including a pair of spaced parallel creasing rules for at least some of the creases to be formed so that the edges of each such pair of creasing rules will produce spaced parallel crease lines in the carton board defining each crease, the creasing rules of each pair being integral in that they are formed in a bar of tuning fork section.
Claim 2
Dependent Claim
70 words
A creasing forme for a board creasing machine including a pair of spaced parallel creasing rules for at least some of the creases to be formed so that the edges of each such pair of creasing rules will produce spaced parallel crease lines in the carton board defining each crease, the creasing rules of each pair being integral in that they are formed in a bar of tuning fork section.
Claim 3
Dependent Claim
24 words
The invention according to claim 1 in which there is a pair of said spaced parallel creasing rules for each crease to be formed.
Claim 4
Dependent Claim
27 words
The invention according to claim 1 further comprising a platen having a planar surface for supporting said carton board between said planar surface and said creasing rules.
Claim 5
Dependent Claim
30 words
The invention according to claim 3 in which said planar surface is arcuate and said forme is a flat structure over which said arcuate surface rolls to form said creases.
Claim 6
Dependent Claim
39 words
The invention according to claim 1 in which said forme is a plate structure having a slot therein, said tuning fork bar comprising a leg projecting in the opposite direction from said creasing rules and received in said slot.
Claim 7
Dependent Claim
37 words
The invention according to claim 1 in which said forme comprises a plate structure and a plurality of multi-forme plate pieces, and clamps securing said plate pieces and pairs of parallel creasing rules to said plate structure.
Claim 8
Dependent Claim
36 words
The invention according to claim 1 further comprising cutting knives mounted on said creasing forme in a configuration for cutting the carton board into blanks simultaneously with the creasing of the board by said creasing rules.
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |