US4594124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the production of laminated sheath cables
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1985-01-14
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Granted: 1986-06-10
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Expires: 2005-01-14
Abstract
Abstract A process and apparatus for the production of laminated sheath cables having improved close contact between a laminated tape layer and the core of the cable. The tape is longitudinally wrapped around the cable with portions of the tape overlapping. The assembly is then heated and passed through a set of pressing rollers disposed at a single pressing position. The rollers are at least three in number. The arc length of each roller is determined by dividing the total outer circumference of the assembled tape and cable core by the number of rollers.
Inventors
- 👤 Fumio Harano
- 👤 Shigeyoshi Kaneta
- 👤 Kunihiro Nakagaki
- 👤 Satoshi Nishiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:29
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/22; H01B13/26; H01B13/0006; H01B13/2613; H01B13/266
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
158 words
An apparatus for the production of a laminated sheath cable, comprising, in order: a forming unit where a cable core is longitudinally wrapped with a laminating tape in such a manner that the laminating tape is overlapping along the cable core; an overlapping jig for preventing the overlapping portions of said laminating tape from bunching; a squeezing die for squeezing said cable core with said laminating tape provided thereon; a heating unit for rendering molten at least said overlapping portions of said laminating tape; and pressing means for pressing together the heated overlapping portions, wherein the improvement comprises: said pressing means comprises n rollers, each having a pressing portion having an arc length determined by dividing an outer circumference of said cable core by n, where n is an integer of 3 or more, disposed so as to press said laminating tape toward said cable core at a single position in the lengthwise direction of said cable core.
Claim 2
Independent Claim
158 words
An apparatus for the production of a laminated sheath cable, comprising, in order: a forming unit where a cable core is longitudinally wrapped with a laminating tape in such a manner that the laminating tape is overlapping along the cable core; an overlapping jig for preventing the overlapping portions of said laminating tape from bunching; a squeezing die for squeezing said cable core with said laminating tape provided thereon; a heating unit for rendering molten at least said overlapping portions of said laminating tape; and pressing means for pressing together the heated overlapping portions, wherein the improvement comprises: said pressing means comprises n rollers, each having a pressing portion having an arc length determined by dividing an outer circumference of said cable core by n, where n is an integer of 3 or more, disposed so as to press said laminating tape toward said cable core at a single position in the lengthwise direction of said cable core.
Claim 3
Dependent Claim
26 words
The apparatus as claimed in claim 1, wherein an arc radius R of the pressing portions of each of said rollers is: R=(cable core diameter+(0.0-1.0))/2 (mm).
Claim 4
Dependent Claim
19 words
The apparatus as claimed in claim 1, wherein a pressing force of said rollers is 3 to 6 kg.
Claim 5
Dependent Claim
21 words
The apparatus as claimed in claim 2, wherein each of said rollers has a surface made of an easy releasing material.
Claim 6
Dependent Claim
23 words
The apparatus as claimed in claim 3, wherein an easy releasing resin layer is formed on said surfaces of each of said rollers.
References Cited (Backward Citations)
US2936357A
Cited
US3459877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-09 | 1989-12-09 | 1990-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-09 | 1993-12-09 | 1994-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-09 | 1997-12-09 | 1998-06-10 | $7700.00 | Window Closed / Lapsed |