US4750804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber connecting jig
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1986-06-11
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Granted: 1988-06-14
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Expires: 2006-06-11
Abstract
Abstract Disclosed is an optical fiber connecting jig that is particularly useful in connecting single core optical fibers to other single core fibers and to multiple core fibers. A base and top cover are hinged to permit the top cover to open and close. The base is grooved to hold optical fibers and glass means.
Inventors
- 👤 Keiji Osaka
- 👤 Yuichi Usui
- 👤 Tooru Yanagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:00
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/3628; G02B6/3648; G02B6/3652; G02B6/3632; G02B6/3636; G02B6/255; G02B6/2553; G02B6/368
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
An optical fiber connecting jig for connecting a plurality of optical fibers, comprising: a base member having one or more first grooves with a first diameter and a corresponding aligned number of second grooves with a second diameter defined in an upper surface thereof; a top cover having an elastic high friction resilient material formed on a lower surface thereof; and means for hingedly mounting said top cover to said base member, whereby a first species of optical fibers disposed in the first grooves may be coupled to a second species of optical fibers in the second grooves.
Claim 2
Dependent Claim
98 words
An optical fiber connecting jig for connecting a plurality of optical fibers, comprising: a base member having one or more first grooves with a first diameter and a corresponding aligned number of second grooves with a second diameter defined in an upper surface thereof; a top cover having an elastic high friction resilient material formed on a lower surface thereof; and means for hingedly mounting said top cover to said base member, whereby a first species of optical fibers disposed in the first grooves may be coupled to a second species of optical fibers in the second grooves.
Claim 3
Dependent Claim
29 words
Apparatus according to claim 1, wherein the first diameter of said first grooves is sufficient to permit multicore type optical fibers to be tightly received in said first grooves.
Claim 4
Dependent Claim
50 words
Apparatus according to claim 2, wherein the second diameter of said second grooves is sufficient to permit single core optical fiber cores to be tightly received in said second grooves, whereby said single core fiber cores may be optically connected to said multicore type optical fibers in said first grooves.
Claim 5
Dependent Claim
34 words
Apparatus according to claim 2, wherein the second diameter of said second grooves is the same as the first diameter of said first grooves, whereby two multicore type optical fibers may be coupled together.
Claim 6
Dependent Claim
56 words
Apparatus according to claim 1, wherein the first diameter of said first grooves is sufficient to permit single core optical fiber cores to be received tightly therein, and the second diameter of said second grooves is sufficient to tightly receive optical fiber glass means therein, whereby said glass means may be coupled to said fiber cores.
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) | 1991-06-14 | 1991-12-14 | 1992-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-14 | 1995-12-14 | 1996-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-14 | 1999-12-14 | 2000-06-14 | $7700.00 | Window Closed / Lapsed |