Patent US5222176A successfully refreshed from Google Patents.
US5222176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber cable joints and terminations
Assignee: Zarbana Digital Fund LLC
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Filing: 1992-05-27
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Granted: 1993-06-22
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Expires: 2012-05-27
Abstract
Abstract A cable joint or termination has a plastics insulating layer formed by a pair of pre-formed polyethelene parts 7 and 8 which are a close fit around the casing 3 and the cable insulations 1C, 2C. The parts are bonded by ring moulds 9, 10 and 11. This is quicker and cheaper than previous techniques of injection moulding to a sleeve and the cable at the end regions of the casing, and prevents occlusion caused by cable outgassing.
Inventors
- 👤 Graham Webber
- 👤 Stuart E. Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:44
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4415; G02B6/4427; G02B6/4428; G02B6/4439; G02B6/4471; G02B6/44775
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
146 words
An underwater joint for coupling first and second submarine cables each said cable having optical transmission means, a metal strength member and an outer plastics insulating sheath, the joint comprising a pressure resistant tubular metal casing or sea case having reduced diameter end portions each adapted to receive a respective sheathed cable end, each said cable end being a sliding fit in the respective end portion, first and second clamp means whereby the strength member of each cable end is secured to the respective end portion of the housing member, means for splicing the optical transmission means of the first and second cables, and an outer plastics layer comprising two similar preformed plastics parts each fitted to a respective cable and extending over the metal casing, the plastics parts being secured to each other and to the plastics cable sheaths whereby to effect a watertight construction.
Claim 2
Dependent Claim
146 words
An underwater joint for coupling first and second submarine cables each said cable having optical transmission means, a metal strength member and an outer plastics insulating sheath, the joint comprising a pressure resistant tubular metal casing or sea case having reduced diameter end portions each adapted to receive a respective sheathed cable end, each said cable end being a sliding fit in the respective end portion, first and second clamp means whereby the strength member of each cable end is secured to the respective end portion of the housing member, means for splicing the optical transmission means of the first and second cables, and an outer plastics layer comprising two similar preformed plastics parts each fitted to a respective cable and extending over the metal casing, the plastics parts being secured to each other and to the plastics cable sheaths whereby to effect a watertight construction.
Claim 3
Dependent Claim
41 words
A joint as claimed in claim 1, wherein each said plastics housing part is sealed to its respective cable end by a ring-shaped moulded region which penetrates the cable insulation by an amount less than the thickness of the cable insulation.
Claim 4
Dependent Claim
13 words
A cable provided with one or more joints as claimed in claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-21 | 1996-12-21 | 1997-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-21 | 2000-12-21 | 2001-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-21 | 2004-12-21 | 2005-06-22 | $7700.00 | Window Closed / Lapsed |