US4309864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing cable elements incorporating otpical fibers
Assignee: Lignes Telegraphiques et Telephoniques LTT SA
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Filing: 1980-05-12
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Granted: 1982-01-12
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Expires: 2000-05-12
Abstract
Abstract A head for laying optical fibers in the grooves of a cylindrical support is fixed to a plate carrying fiber reserves by means of a coupling permitting rotation. The support is maintained at a temperature above ambient temperature up to the laying head.
Inventors
- 👤 Jean P. Hulin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:39
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4479; G02B6/4489
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
142 words
An apparatus for producing cable elements incorporating optical fibers and ensuring the simultaneous laying of a plurality of optical fibers in a plurality of helical grooves having a simple or alternating pitch, of a cylindrical support, said apparatus comprising a laying head wherein is machined an opening for said support travelling continuously through said laying head, said laying head further comprising a system of fiber guides constituted by hollow elastic metal tubes terminated at one of their ends by a bevel and resting inclined under pressure on the bottom of said grooves, said apparatus further comprising a plate carrying fiber stocks, means for rotating said plate at a speed corresponding to the theoretical value of the pitch of said grooves, and a coupling device for fixing said head on said plate while permitting a relative rotation of the head and the plate.
Claim 2
Independent Claim
142 words
An apparatus for producing cable elements incorporating optical fibers and ensuring the simultaneous laying of a plurality of optical fibers in a plurality of helical grooves having a simple or alternating pitch, of a cylindrical support, said apparatus comprising a laying head wherein is machined an opening for said support travelling continuously through said laying head, said laying head further comprising a system of fiber guides constituted by hollow elastic metal tubes terminated at one of their ends by a bevel and resting inclined under pressure on the bottom of said grooves, said apparatus further comprising a plate carrying fiber stocks, means for rotating said plate at a speed corresponding to the theoretical value of the pitch of said grooves, and a coupling device for fixing said head on said plate while permitting a relative rotation of the head and the plate.
Claim 3
Dependent Claim
34 words
An apparatus according to claim 3, further comprising means for heating said support to a temperature in excess of ambient temperature, and a thermally insulated pipe surrounding said support when travelling through said apparatus.
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) | 1985-01-11 | 1985-07-13 | 1986-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-11 | 1989-07-13 | 1990-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-11 | 1993-07-13 | 1994-01-12 | $7700.00 | Window Closed / Lapsed |