Patent US4973126A successfully refreshed from Google Patents.
US4973126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber connector
Assignee: Nokia Bell Labs
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Filing: 1989-12-07
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Granted: 1990-11-27
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Expires: 2009-12-07
Abstract
Abstract A fiber optical end connector is disclosed, comprising a grooved base member having mounted thereupon a grooved silicon block, and means for holding optical fibers in the grooves on the base member and on the silicon block.
Inventors
- 👤 Yinon Degani
- 👤 Robert M. Kimball
- 👤 Richard T. Kraetsch
- 👤 Robert M. Lien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:13
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3801; G02B6/3806; G02B6/3628; G02B6/3632; G02B6/3636; G02B6/3803; G02B6/3648; G02B6/3652; G02B6/3684; G02B6/3692
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
146 words
A fiber optical connector for connecting at least one pair of optical fibers end-to-end, comprising: a base member having first and second ends and an upper surface; a first groove disposed in the upper surface, the first groove extending essentially in a straight line from the first end toward the second end; a second groove disposed in the upper surface, the second groove essentially collinear with the first groove and extending from the second end toward the first end; a third groove intermediate and collinear with the first and second grooves; and means for holding optical fibers in the first, second, and third grooves, characterized in that the connector further comprises a silicon block mounted on the upper surface intermediate the first and second ends, the silicon block having a top surface, and the third groove being disposed in the top surface of the silicon block.
Claim 2
Dependent Claim
146 words
A fiber optical connector for connecting at least one pair of optical fibers end-to-end, comprising: a base member having first and second ends and an upper surface; a first groove disposed in the upper surface, the first groove extending essentially in a straight line from the first end toward the second end; a second groove disposed in the upper surface, the second groove essentially collinear with the first groove and extending from the second end toward the first end; a third groove intermediate and collinear with the first and second grooves; and means for holding optical fibers in the first, second, and third grooves, characterized in that the connector further comprises a silicon block mounted on the upper surface intermediate the first and second ends, the silicon block having a top surface, and the third groove being disposed in the top surface of the silicon block.
Claim 3
Dependent Claim
26 words
The connector of claim 1, wherein the upper surface includes a recess intermediate the first and second ends, and the silicon block lies within the recess.
Claim 4
Dependent Claim
12 words
The connector of claim 1, wherein the third groove is crystallographically etched.
Claim 5
Dependent Claim
36 words
The connector of claim 1, wherein the first and second grooves are each adapted for supporting a buffered optical fiber, and the third groove is adapted for supporting a pair of stripped optical fiber end portions.
Claim 6
Dependent Claim
25 words
The connector of claim 4, further comprising a cover plate adapted to cover a pair of stripped fiber end portions lying in the third groove.
Claim 7
Dependent Claim
12 words
The connector of claim 1, wherein the holding means are not hinged.
Claim 8
Dependent Claim
12 words
The connector of claim 1, wherein the holding means are spring chips.
References Cited (Backward Citations)
US3864018A
Cited
US4756591A
Cited
US4593972A
Cited
US4688886A
Cited
US4594121A
Cited
US4784456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-11-26 | 1994-05-28 | 1994-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-26 | 1998-05-28 | 1998-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-26 | 2002-05-28 | 2002-11-27 | $7700.00 | Window Closed / Lapsed |