Patent US4166672A successfully refreshed from Google Patents.
US4166672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber connector
Assignee: ITT Inc
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Filing: 1977-07-20
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Granted: 1979-09-04
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Expires: 1997-07-20
Abstract
Abstract An optical fiber connector in which each mating fiber is provided with a termination in the form of a cast metal sleeve fitted in a metal ferrule.
Inventors
- 👤 Alan R. Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:52
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3873; G02B6/3874; G02B6/3801; G02B6/3806; G02B6/3833; G02B6/3834; G02B6/3835; G02B6/3854; G02B6/3855; G02B6/3858
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
An optical fiber termination adapted to be fitted to the stripped end of a single plastic clad fiber comprising: a tubular housing having a forward end; first and second cylindrical plastic inserts mounted end-to-end in said housing spaced behind said forward end and each carrying a respective sleeve member; said sleeve members being coaxial and adapted to have a sliding fit on the plastic cladding on the fiber; and one said sleeve member having a fusible metal insert formed with an elongated bore dimensioned to slidably receive the bared end of the fiber.
Claim 2
Dependent Claim
93 words
An optical fiber termination adapted to be fitted to the stripped end of a single plastic clad fiber comprising: a tubular housing having a forward end; first and second cylindrical plastic inserts mounted end-to-end in said housing spaced behind said forward end and each carrying a respective sleeve member; said sleeve members being coaxial and adapted to have a sliding fit on the plastic cladding on the fiber; and one said sleeve member having a fusible metal insert formed with an elongated bore dimensioned to slidably receive the bared end of the fiber.
Claim 3
Dependent Claim
17 words
A termination as set forth in claim 1 wherein: said metal insert is a Wood's metal casting.
Claim 4
Dependent Claim
41 words
A termination as set forth in claim 1 wherein: said housing has an inwardly directed annular shoulder against which one of said plastic inserts abuts; and a gland nut is fitted to said housing for pushing said inserts toward said shoulders.
Claim 5
Dependent Claim
144 words
An optical connector assembly for coupling first and second single optical fibers comprising: first and second fiber termination members each of which has a tubular housing with forward and rear ends and containing an axially mounted fixed sleeve member, said sleeve member being spaced from said tubular housing to provide an annular space therebetween open at said forward end, a fusible metal insert in said sleeve member formed with an elongated bore dimensioned to slidably receive a fiber end; and a coupling member having an outer sleeve and an axially mounted, rigid inner sleeve in which said termination sleeve members slidably meet in abutment and axial alignment, said inner sleeve being spaced from said outer sleeve to provide an annular space open at the opposite ends of said coupling member dimensioned to slidably receive in its opposite ends said tubular housings of said terminations.
Claim 6
Dependent Claim
144 words
An optical connector assembly for coupling first and second single optical fibers comprising: first and second fiber termination members each of which has a tubular housing with forward and rear ends and containing an axially mounted fixed sleeve member, said sleeve member being spaced from said tubular housing to provide an annular space therebetween open at said forward end, a fusible metal insert in said sleeve member formed with an elongated bore dimensioned to slidably receive a fiber end; and a coupling member having an outer sleeve and an axially mounted, rigid inner sleeve in which said termination sleeve members slidably meet in abutment and axial alignment, said inner sleeve being spaced from said outer sleeve to provide an annular space open at the opposite ends of said coupling member dimensioned to slidably receive in its opposite ends said tubular housings of said terminations.
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) | 1982-09-03 | 1983-03-05 | 1983-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-03 | 1987-03-05 | 1987-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-03 | 1991-03-05 | 1991-09-04 | $7700.00 | Window Closed / Lapsed |