US4902095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fibre cable connector
Assignee: Focas Ltd
•
Filing: 1987-12-15
•
Granted: 1990-02-20
•
Expires: 2007-12-15
Abstract
Abstract The connector comprises means (2) defining a bore (4) to receive a bared end portion or portions (20) of an optical fibre cable (16), the means (2) being surrounded by a body (12) of sealant material and a member (10) of heat recoverable material. After insertion of the cable or cables, (16) the member (12) is recovered and compresses the sealant material (10) into intimate contact with the means (2) and cable or cables (16).
Inventors
- 👤 James C. Baker
- 👤 Geraldine M. Lang
- 👤 Stephen A. Clift
- 👤 Leslie J. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:12
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/32; G02B6/36; G02B6/38; G02B6/3801; G02B6/3803
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
94 words
An optical fibre connector including a first member having a portion with a bore defined therein to receive a bared end portion of an optical fibre cable; a body of sealant material on the connector formed with an interior surface to guide an optical fibre into said bore from at least one input end of the first member; and a second member of heat-recoverable material enclosing the body of sealant material, the heat-recoverable material overlapping portions of the first member and an optical fibre after insertion of a bared end thereof into the bore.
Claim 2
Dependent Claim
94 words
An optical fibre connector including a first member having a portion with a bore defined therein to receive a bared end portion of an optical fibre cable; a body of sealant material on the connector formed with an interior surface to guide an optical fibre into said bore from at least one input end of the first member; and a second member of heat-recoverable material enclosing the body of sealant material, the heat-recoverable material overlapping portions of the first member and an optical fibre after insertion of a bared end thereof into the bore.
Claim 3
Dependent Claim
32 words
A connector as claimed in claim 1, in which the body of sealant material has a hole with an inwardly tapering-end portion which serves to guide the optical fibre into said bore.
Claim 4
Dependent Claim
17 words
A connector as claimed in claim 1, in which the member of heat recoverable material is tubular.
Claim 5
Dependent Claim
93 words
A connector as claimed in claim 1, wherein said first member comprises a rigid tubular member about which the body of sealant material is formed, said bore being substantially on the axis of the rigid tubular member, and the rigid tubular member being formed with a plurality of through holes through which the sealant material can pass, the sealant material between the member of heat-recoverable material and the rigid tubular member being urged through the holes in the tubular member when the connector is heated to the recovery temperature of the heat-recoverable material.
Claim 6
Dependent Claim
23 words
A connector as claimed in claim 4, in which the rigid tubular member extends beyond both ends of the body of sealant material.
Claim 7
Dependent Claim
23 words
A connector as claimed in claim 5, in which the rigid tubular member extends beyond both ends of the member of heat-recoverable material.
Claim 8
Dependent Claim
33 words
A connector as claimed in claim 5, in which those portions of the rigid tubular member which extend beyond the ends of the body of sealant material are not formed with through holes.
Claim 9
Dependent Claim
50 words
A connector as claimed in claim 5, in which the bore in the rigid tubular member is located in the portion of a rigid tubular member which extends beyond the end of the body of sealant material opposite to the end of insertion of the optical fibre into said bore.
Claim 10
Dependent Claim
44 words
A connector as claimed in claim 4, including a lens member located in the portion of the rigid tubular member which extends beyond the end of the body of sealant material opposite to the end of insertion of the optical fibre into said bore.
Claim 11
Dependent Claim
33 words
A connector as claimed in claim 1, said first member bore being a through bore open at both ends to receive bared ends of separate optical fibre cables to provide a splice connection.
Claim 12
Dependent Claim
26 words
A connector as claimed in claim 1, in which the sealant material is softenable by heat applied to effect recovery of the member of heat-recoverable material.
Claim 13
Dependent Claim
157 words
An optical fibre connector including a tubular member having a portion with a bore having a longitudinal length defined therein of size to receive a bared end portion of an optical fibre cable; a body of sealant material on the connector, said sealant material having an interior passageway generally centered on the bore and formed with a tapered surface from an input end reducing in size toward the bore to guide a bared end portion of an optical fibre cable into the interior passageway and into said bore from said input end, and the body of sealant material at least partially overlapping the tubular member in longitudinal direction, a second member substantially encircling said body of sealant material and at least portions of said tubular member, said second member having the properties of providing compressive forces to the sealant material when heated, said second member overlapping the body of sealant material and tubular member in longitudinal direction.
Claim 14
Dependent Claim
157 words
An optical fibre connector including a tubular member having a portion with a bore having a longitudinal length defined therein of size to receive a bared end portion of an optical fibre cable; a body of sealant material on the connector, said sealant material having an interior passageway generally centered on the bore and formed with a tapered surface from an input end reducing in size toward the bore to guide a bared end portion of an optical fibre cable into the interior passageway and into said bore from said input end, and the body of sealant material at least partially overlapping the tubular member in longitudinal direction, a second member substantially encircling said body of sealant material and at least portions of said tubular member, said second member having the properties of providing compressive forces to the sealant material when heated, said second member overlapping the body of sealant material and tubular member in longitudinal direction.
Claim 15
Dependent Claim
42 words
The connector as specified in claim 12 wherein the second member is a heat shrinkable tubing, and at the temperature wherein said heat shrinkable tubing shrinks the sealant material having the properties of softening to permit compression against the optical fibre cable.
References Cited (Backward Citations)
GB1588227A
Cited
GB2008274A
Cited
GB1600010A
Cited
US4198119A
Cited
GB2041558A
Cited
US4290668A
Cited
US4261644A
Cited
GB2088653A
Cited
US4404010A
Cited
GB2087585A
Cited
US4529265A
Cited
GB2111238A
Cited
US4509820A
Cited
US4460820A
Cited
US4411491A
Cited
US4458983A
Cited
US4707069A
Cited
US4657343A
Cited
EP0121987A1
Cited
GB2141252A
Cited
GB2148537A
Cited
US4557557A
Cited
US4557556A
Cited
US4783137A
Cited
GB2153105A
Cited
EP0159857A2
Cited
US4812008A
Cited
US4773724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |