US3628409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cutting sheet material
Assignee: Societe Nationale dExploitation Industrielle des Tabacs et Allumettes SAS
•
Filing: 1968-07-15
•
Granted: 1971-12-21
•
Expires: 1988-07-15
Abstract
Abstract Apparatus for cutting sheet material into strips, including means for applying a drawing force to a sheet of said material to cause said sheet to be drawn along and simultaneously causing restraining forces to be applied to said sheet on either side thereof to restraint it against the drawing action of said drawing forces.
Inventors
- 👤 Pierre Imbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:14
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/22; B26D1/225; A; A24; A24B; A24B7/00; A24B7/04; A24B7/06; B26D1/24; B26D1/245; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/329; Y10T225/371; Y10T225/379; Y10T83/00; Y10T83/323; Y10T83/343; Y10T83/647; Y10T83/6584; Y10T83/6592; Y10T83/6596; Y10T83/768; Y10T83/7809; Y10T83/783
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
91 words
A device for cutting sheet material into strips, comprising two members located to be situated on either side of the sheet to be cut to engage both sides thereof, one at least of said members is a rotary member of which longitudinal sections taken through the rotations axes thereof produce wavy profiles consisting of sharp ridges on one of said members and blunt ridges on the other, with the ridges of one member engaging between those of the other, the linear velocities of the ridges of said two members being different.
Claim 2
Independent Claim
91 words
A device for cutting sheet material into strips, comprising two members located to be situated on either side of the sheet to be cut to engage both sides thereof, one at least of said members is a rotary member of which longitudinal sections taken through the rotations axes thereof produce wavy profiles consisting of sharp ridges on one of said members and blunt ridges on the other, with the ridges of one member engaging between those of the other, the linear velocities of the ridges of said two members being different.
Claim 3
Dependent Claim
15 words
A device as in claim 1, wherein said blunt-ridged member is likewise a rotary member.
Claim 4
Dependent Claim
28 words
A device as in claim 1, wherein said sharp-ridged member is a cylinder the peripheral linear velocity of which is algebraically greater than that of said blunt-ridged member.
Claim 5
Dependent Claim
22 words
A device as in claim 1, wherein said sharp-ridged member is cylindrical and its diameter greater than that of said blunt-ridged member.
Claim 6
Dependent Claim
19 words
A device a in claim 1, wherein at least one of the two rotary members is of frustoconical shape.
Claim 7
Dependent Claim
14 words
A device as in claim 5, wherein the rotary member is said sharp-ridged member.
Claim 8
Dependent Claim
31 words
A device as in claim 6, wherein the blunt-ridged member is likewise a rotarY member and the angular velocity of the sharp-ridged member is greater than that of the other member.
Claim 9
Dependent Claim
32 words
A device as in claim 1, wherein the flanks of said sharp ridges are smooth and at least one of the flanks of said blunt ridges is rough in part at least.
Claim 10
Dependent Claim
15 words
A device as in claim 8, wherein said blunt ridges have portions of unequal roughness.
Claim 11
Dependent Claim
14 words
A device in claim 1, wherein said blunt ridges are formed with flat tips.
Claim 12
Dependent Claim
21 words
A device as in claim 1, wherein said sharp ridges at least have one straight flank and the other flank bevelled.
Claim 13
Dependent Claim
28 words
A process as in claim 1, wherein a plurality of parallel drawing forces are applied to said sheet at different points thereof and at different linear velocities thereat.
References Cited (Backward Citations)
US3333752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |