US4983012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber connector
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1990-04-23
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Granted: 1991-01-08
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Expires: 2010-04-23
Abstract
Abstract An optical connector comprises an optical fiber guide member consisting of a grooved substrate and a cover plate, the substrate having optical fiber guide grooves and guide pin grooves cut into its top surface, and the cover plate being joined to the substrate to cover the optical fiber guide grooves but to leave at least part of the guide pin grooves exposed; a pressing member which is movable in the vertical direction of the guide pin grooves and is provided above the guide pin grooves to elastically press guide pins which are positioned on the guide pin grooves downward; and coupling clips enhancing the force of elastic pressure being exerted on the guide pins so as to secure the joining of optical fibers.
Inventors
- 👤 Kazuhito Saito
- 👤 Toshiaki Kakii
- 👤 Hidetoshi Ishida
- 👤 Shuzo Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:25
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3833; G02B6/3834; G02B6/3838; G02B6/3839; G02B6/3873; G02B6/3885; G02B6/389; G02B6/3855; G02B6/3858
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
152 words
An optical connector for connecting optical fibers in proper axial alignment with each other, said optical connector comprises: an optical fiber guide member consisting of a grooved substrate and a cover plate, said substrate having optical fiber guide grooves and guide pin grooves cut into a top surface thereof, and said cover plate being joined to said substrate in such a way that it covers the optical fiber guide grooves but leaves at least part of the guide pin grooves exposed; a member being movable in the vertical direction of the guide pin grooves and positioned above said grooves in such a way that said movable member elastically presses downward guide pins positioned on said guide pin grooves when optical fibers are joined by said optical connector; and coupling clips for enhancing the force of elastic pressure being exerted on said guide pins so as to secure the joining of optical fibers.
Claim 2
Dependent Claim
152 words
An optical connector for connecting optical fibers in proper axial alignment with each other, said optical connector comprises: an optical fiber guide member consisting of a grooved substrate and a cover plate, said substrate having optical fiber guide grooves and guide pin grooves cut into a top surface thereof, and said cover plate being joined to said substrate in such a way that it covers the optical fiber guide grooves but leaves at least part of the guide pin grooves exposed; a member being movable in the vertical direction of the guide pin grooves and positioned above said grooves in such a way that said movable member elastically presses downward guide pins positioned on said guide pin grooves when optical fibers are joined by said optical connector; and coupling clips for enhancing the force of elastic pressure being exerted on said guide pins so as to secure the joining of optical fibers.
Claim 3
Dependent Claim
54 words
An optical connector according to claim 1, wherein the force of pressure by which the guide pins are pressed downward by means of said vertically movable member in the absence of the coupling clips is no more than 500 gf in terms of the force required for insertion or extraction of said guide pins.
Claim 4
Dependent Claim
24 words
An optical connector according to claim 1, wherein said guide pins are held in contact with inner two surfaces of the guide pin grooves.
Claim 5
Dependent Claim
23 words
An optical connector according to claim 1, wherein said optical fiber guide grooves and guide pin grooves on said substrate are V-shaped grooves.
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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) | 1994-01-07 | 1994-07-09 | 1995-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-07 | 1998-07-09 | 1999-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-07 | 2002-07-09 | 2003-01-08 | $7700.00 | Window Closed / Lapsed |