US5000532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber switch
Assignee: Nokia Bell Labs
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Filing: 1989-11-06
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Granted: 1991-03-19
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Expires: 2009-11-06
Abstract
Abstract A precisely aligned optical fiber switch assembly. A base member has a vee groove for supporting a fixed optical fiber and a second optical fiber in optical alignment with the fixed fiber. The groove contains sections of different dimensions that receive and align sheathed portions of the fibers and groove sections that receive and align unsheathed portions of the fibers. First aligning means on the base member longitudinally position the fixed and second fibers in the groove. Covering means mate with the base member for covering at least part of the sheathed portions of the fibers. Aligning means position the covering means precisely with respect to the base member.
Inventors
- 👤 Richard T. Kraetsch
- 👤 Richard J. Pimpinella
- 👤 Leonard W. Schaper
- 👤 King L. Tai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:55
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/35; G02B6/3502; G02B6/3508; G02B6/354; G02B6/3544; G02B6/3548; G02B6/355; G02B6/3564; G02B6/3568; G02B6/3572; G02B6/3582; G02B6/36; G02B6/3628; G02B6/3648; G02B6/3652; G02B6/3684; G02B6/3692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
An optical fiber switch assembly comprising a first optical fiber (114), a second optical fiber (104), a base member (102) having an optical fiber groove extending longitudinally from one side of the base member to the opposite side and having a first section for supporting the first optical fiber and a second section for supporting the second optical fiber in physical and optical alignment with the first fiber, being characterized in that the first and second groove sections each contain a first portion (124, 144) for fixedly supporting a sheathed part of its respective fiber and a second portion (108, 109) of dimensions smaller than the first portion for supporting an unsheathed end part of its fiber and optically and physically aligning the unsheathed end part with that of the other fiber, and means (100, 134, 136, 138) for moving at least the unsheathed end part of the second fiber out of physical alignment with the first portion of the first fiber.
Claim 2
Dependent Claim
162 words
An optical fiber switch assembly comprising a first optical fiber (114), a second optical fiber (104), a base member (102) having an optical fiber groove extending longitudinally from one side of the base member to the opposite side and having a first section for supporting the first optical fiber and a second section for supporting the second optical fiber in physical and optical alignment with the first fiber, being characterized in that the first and second groove sections each contain a first portion (124, 144) for fixedly supporting a sheathed part of its respective fiber and a second portion (108, 109) of dimensions smaller than the first portion for supporting an unsheathed end part of its fiber and optically and physically aligning the unsheathed end part with that of the other fiber, and means (100, 134, 136, 138) for moving at least the unsheathed end part of the second fiber out of physical alignment with the first portion of the first fiber.
References Cited (Backward Citations)
US4189206A
Cited
US4152043A
Cited
US4312561A
Cited
US4223978A
Cited
US4662962A
Cited
US4636032A
Cited
US4662713A
Cited
US4725114A
Cited
US4688885A
Cited
US4778243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-18 | 1994-09-17 | 1995-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-18 | 1998-09-17 | 1999-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-18 | 2002-09-17 | 2003-03-19 | $7700.00 | Window Closed / Lapsed |