US5619604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-fiber optical connector
Assignee: Alcoa Fujikura Ltd
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Filing: 1996-02-26
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Granted: 1997-04-08
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Expires: 2016-02-26
Abstract
Abstract A connector using an multi-fiber ferrule, such as the MT ferrule or similar ferrule, that can be plugged into and received by an optical receptacle. Multiple alignment features help align and mate the connector to another multi-fiber object. The connector has a guide prong or forward extension beneath which is mounted the ferrule. The prong provides a reference surface that functions as a precise pre-alignment mechanism for the ferrule. Also, the prong has a groove that mates with a corresponding rail of the receptacle when the connector is plugged into the receptacle ensuring that the connector is properly seated within the receptacle. Further, the ferrule has apertures that align with and receive guide pins of the lightguide means or active device.
Inventors
- 👤 Elbert O. Shiflett
- 👤 James M. Wittes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:04
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4292; G02B6/36; G02B6/38; G02B6/3807; G02B6/3869; G02B6/3873; G02B6/3885; G02B6/4201; G02B6/4246; G02B6/381; G02B6/3818; G02B6/3821; G02B6/3826; G02B6/3831; G02B6/3887; G02B6/38875; G02B6/389; G02B6/3893
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
A multi-fiber optical connector having a front end and a rear end and comprising: a generally U-shaped enclosure having a center wall and an integral pair of depending side walls extending from the center wall in a generally parallel fashion from longitudinal edges of said center wall, said enclosure having an integral pair of fingers with inwardly turned ends extending longitudinally from said side walls, and an integral spring tab extending Iongitudinally from said center wall, said fingers and said tab located at the front end of said connector; a ferrule having a front surface with at least two apertures for receiving two guide pins from a second multi-fiber object, said ferrule having an upper surface and a lower surface, said ferrule in addition having opposed side surfaces positioned between the fingers of said U-shaped enclosure; and a connector body having a guide prong providing a reference surface for engaging the upper surface of the ferrule while the tab of said U-shaped enclosure engages the lower surface of the ferrule and forces it against the reference surface of said prong.
Claim 2
Dependent Claim
180 words
A multi-fiber optical connector having a front end and a rear end and comprising: a generally U-shaped enclosure having a center wall and an integral pair of depending side walls extending from the center wall in a generally parallel fashion from longitudinal edges of said center wall, said enclosure having an integral pair of fingers with inwardly turned ends extending longitudinally from said side walls, and an integral spring tab extending Iongitudinally from said center wall, said fingers and said tab located at the front end of said connector; a ferrule having a front surface with at least two apertures for receiving two guide pins from a second multi-fiber object, said ferrule having an upper surface and a lower surface, said ferrule in addition having opposed side surfaces positioned between the fingers of said U-shaped enclosure; and a connector body having a guide prong providing a reference surface for engaging the upper surface of the ferrule while the tab of said U-shaped enclosure engages the lower surface of the ferrule and forces it against the reference surface of said prong.
Claim 3
Dependent Claim
14 words
A connector as in claim 1 wherein said ferrule is a mechanical transfer ferrule.
Claim 4
Dependent Claim
139 words
A multi-fiber optical connector as in claim 1 for insertion into a receptacle, said connector further comprising: a latching means configured to engage said connector body, said latching means having arms with notches corresponding to projections on said receptacle such that said notches engage and lock onto said projections when said connector is inserted into said receptacle; and a slide means having a forward end and center wall with side walls extending in a general parallel fashion from longitudinal edges of the center wall, said side walls having a textured outer surface and inwardly directed longitudinal edges extending in a generally parallel direction to the plane of the center wall, said slide means having in addition a tongue extending from the forward end of said center wall, said tongue engaging said latch and said slide engaging said connector body.
Claim 5
Dependent Claim
106 words
A connector as in claim 1 wherein said connector further comprises: a saddle member, said member having center and side walls extending in a generally parallel fashion from longitudinal edges of said center wall, said side walls having an integral pair of fingers extending longitudinally from a front end of said side walls; coil spring means seated on said fingers, said center wall having an integral strength member tie-off tab extending longitudinally from the rear end of said center wall, said saddle member abutting said ferrule such that said spring means forces said ferrule against the inwardly turned ends of the fingers of the U-shaped enclosure.
Claim 6
Dependent Claim
55 words
A connector as in claim 3 wherein said connector houses one end of a fiber optic cable and an end portion of a plastic jacket encasing said cable, said connector further comprising: a strain relief boot encasing the end portion of said plastic jacket, said boot being engaged by said enclosure and said connector body.
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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) | 2000-04-07 | 2000-10-07 | 2001-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-07 | 2004-10-07 | 2005-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-07 | 2008-10-07 | 2009-04-08 | $7700.00 | Window Closed / Lapsed |