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US4799760A
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Strain relief apparatus
Assignee: CCS Holdings Inc
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Filing: 1988-02-29
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Granted: 1989-01-24
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Expires: 2008-02-29
Abstract
Abstract A strain relief apparatus, particularly useful for separating individual optical fibers in a multi-fiber optical cable. Optical fibers from the fiber optic cable are fed through the center of a wedging device and into separate tubes. A coupler wedges first and second members against the wedging device, securing strength members, such as aramid fibers from the fiber optic cable and tubes, between the first and second members and the wedging member.
Inventors
- 👤 Johnny W. Beatty
- 👤 Brian A. DiMarco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:35
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4439; G02B6/4471; G02B6/44715
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
287 words
A strain relief apparatus, comprising: (a) first and second members each having (i) an outer surface, (ii) a first end, and (iii) an inner surface delimiting a central bore, the inner surface tapered so that the bore diameter decreases from the first end toward the middle portion of the member; (b) a wedging member having (i) first and second ends, (ii) an outer surface tapering from wide to narrow from the wedging member middle portion toward the wedging member first and second ends, and (iii) a central bore, the wedging member first end inserted within the first member bore at the first member first end, and the wedging member second end inserted within the second member bore at the second member first end; (c) a first tube and a second tube, the wedging member located between the first and second tubes; (d) a plurality of first strength members within the interior of the first tube and extending between the wedging member outer surface and the first member inner surface; (e) a plurality of second strength members within the interior of the second tube and extending between the wedging member outer surface and the second member inner surface; (f) a first communications member extending from the interior of the first tube through the central bores of the first member, wedging member, and second member, respectively, and into the interior of the second tube; and (g) urging means for urging the first and second members toward each other, whereby (i) the first strength members are tightly held between the wedging member outer surface and first member inner surface, and (ii) the second strength members are tightly held between the wedging member, outer surface and the second member inner surface.
Claim 2
Dependent Claim
287 words
A strain relief apparatus, comprising: (a) first and second members each having (i) an outer surface, (ii) a first end, and (iii) an inner surface delimiting a central bore, the inner surface tapered so that the bore diameter decreases from the first end toward the middle portion of the member; (b) a wedging member having (i) first and second ends, (ii) an outer surface tapering from wide to narrow from the wedging member middle portion toward the wedging member first and second ends, and (iii) a central bore, the wedging member first end inserted within the first member bore at the first member first end, and the wedging member second end inserted within the second member bore at the second member first end; (c) a first tube and a second tube, the wedging member located between the first and second tubes; (d) a plurality of first strength members within the interior of the first tube and extending between the wedging member outer surface and the first member inner surface; (e) a plurality of second strength members within the interior of the second tube and extending between the wedging member outer surface and the second member inner surface; (f) a first communications member extending from the interior of the first tube through the central bores of the first member, wedging member, and second member, respectively, and into the interior of the second tube; and (g) urging means for urging the first and second members toward each other, whereby (i) the first strength members are tightly held between the wedging member outer surface and first member inner surface, and (ii) the second strength members are tightly held between the wedging member, outer surface and the second member inner surface.
Claim 3
Dependent Claim
16 words
A strain relief apparatus as recited in claim 1, wherein the urging means comprises a coupler.
Claim 4
Dependent Claim
46 words
A strain relief apparatus as recited in claim 2, wherein the coupler is disposed around the first and second members, the coupler having a threaded inner surface and the second member having a threaded outer surface, and the first member and the coupler having abutting shoulders.
Claim 5
Dependent Claim
27 words
A strain relief apparatus as recited in claim 3, further comprising means for preventing rotation of the first and second members responsive to rotation of the coupler.
Claim 6
Dependent Claim
89 words
A strain relief apparatus as recited in claim 1, further comprising: (a) a third tube, the wedging member located between the first and third tubes; (b) a plurality of third strength members within the interior of the third tube and extending between the wedging member outer surface and the second member inner surface; and (c) a second communications member extending from the interior of the first tube through the central bores of the first member, wedging member and second member, respectively, and into the interior of the third tube.
Claim 7
Dependent Claim
19 words
A strain relief apparatus as recited in claim 4, wherein the first and second communications members are optical waveguides.
Claim 8
Dependent Claim
18 words
A strain relief apparatus as recited in claim 1, wherein the first communications member is an optical waveguide.
References Cited (Backward Citations)
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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) | 1992-01-24 | 1992-07-25 | 1993-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-24 | 1996-07-25 | 1997-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-24 | 2000-07-25 | 2001-01-24 | $7700.00 | Window Closed / Lapsed |