US3885859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fibre connectors
Assignee: Nortel Networks Ltd
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Filing: 1974-06-24
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Granted: 1975-05-27
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Expires: 1994-06-24
Abstract
Abstract An optical fibre connector for connecting optical fibres in accurate end-to-end alignment has two holding members, a holding member for each fibre. A shaped groove, for example a Vee-groove, is provided generally in one of the holding members. A fibre is held in each member and as the two holding members are brought together in assembled position the fibres are brought into endto-end relationship over the shaped groove. A resilient member pushes the ends of the fibres down into the groove to give accurate end-to-end alignment.
Inventors
- 👤 Jack Frank Dalgleish
- 👤 Helmut Hans Lukas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:15
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3809; G02B6/3833; G02B6/3834; G02B6/3838; G02B6/3839; G02B6/3873; G02B6/3881; G02B6/3885
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
140 words
An optical fibre connector for connecting pairs of optical fibres in accurate end to end relationship comprising: a first holding member for holding one of a pair of fibres and a second holding member for holding the other of said pair of fibres; at least one locating member extending from one of said holding members for cooperation with the other of said holding members for axial end to end location of said holding members; at least one groove in said locating member, said groove extending in a direction parallel to the longitudinal axis of the connector; means for retaining said holding members in opposed assembled relationship; means in each member for acceptance of at least one optical fibre, the fibres in end-to-end abutting relationship adjacent said locating member; resilient means for urging the ends of said fibres into said groove.
Claim 2
Dependent Claim
140 words
An optical fibre connector for connecting pairs of optical fibres in accurate end to end relationship comprising: a first holding member for holding one of a pair of fibres and a second holding member for holding the other of said pair of fibres; at least one locating member extending from one of said holding members for cooperation with the other of said holding members for axial end to end location of said holding members; at least one groove in said locating member, said groove extending in a direction parallel to the longitudinal axis of the connector; means for retaining said holding members in opposed assembled relationship; means in each member for acceptance of at least one optical fibre, the fibres in end-to-end abutting relationship adjacent said locating member; resilient means for urging the ends of said fibres into said groove.
Claim 3
Dependent Claim
58 words
A connector as claimed in claim 1, including an axially extending bore in each of said holding members, said locating member comprising an elongated member positioned in said axial bore of said one of said holding members and including an end portion extending from said first holding member to enter said axial bore of said second holding member.
Claim 4
Dependent Claim
12 words
A connector as claimed in claim 1, said groove a Vee-shaped groove.
Claim 5
Dependent Claim
22 words
A connector as claimed in claim 1, said resilient means comprising a spring locking member attached to one of said holding members.
Claim 6
Dependent Claim
57 words
A connector as claimed in claim 4 said locking member including two parallel spaced apart formations extending normal to the longitudinal axis of the connector, the formations positioned to bear on the opposed ends of the optical fibres, one formation on the end of one fibre and the other formation on the end of the other fibre.
Claim 7
Dependent Claim
22 words
A connector as claimed in claim 1 said locating member being integral with and extending axially from one of said holding members.
Claim 8
Dependent Claim
35 words
A connector as claimed in claim 6 including a cylindrical portion extending axially from the other of said holding members, said locating member positioned to engage with said cylindrical portion on assembly of said connector.
Claim 9
Dependent Claim
50 words
A connector as claimed in claim 7 including interengaging formations on said locating member and said cylindrical portion, said formations extending normal to the longitudinal axis of the connector, said holding members being assembled together by relative lateral movement in a direction normal to the longitudinal axis of the connector.
Claim 10
Dependent Claim
17 words
A connector as claimed in claim 1 comprising a plurality of parallel grooves in said locating member.
Claim 11
Dependent Claim
26 words
A connector as claimed in claim 1 comprising a plurality of locating members in said holding member and at least one groove in each locating member.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |