US4726647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical connector
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1986-03-18
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Granted: 1988-02-23
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Expires: 2006-03-18
Abstract
Abstract An optical connector for joining ends of optical fibers, including an adapter formed with at least one claw and a plug coupled detachably with the adapter. The plug includes an insertion guide to be inserted into the adapter, an ejector and an urging member for urging the ejector in an axial insertion direction, while the insertion guide is formed, on its outer periphery, with a projection and a recess such that the claw is caused to ride over the projection into engagement with the recess at the time of coupling of the plug with the adapter.
Inventors
- 👤 Toshiaki Kakii
- 👤 Naoshi Hakamata
- 👤 Shuzo Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:37
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3873; G02B6/3874; G02B6/389; G02B6/3833; G02B6/3851
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
296 words
An optical connector for joining ends of optical fibers, comprising: an adapter which is formed with at least one claw; and a plug which is detachably coupled with said adapter; said plug including an insertion guide to be inserted into said adapter, an ejector disposed radially outwardly of said insertion guide and an urging member for urging said ejector in an axial insertion direction for inserting said insertion guide into said adapter; said insertion guide being formed, on an outer peripheral face thereof, with a projection and a recess disposed rearwardly of said projection in the axial insertion direction, whereby at the time of coupling of said plug with said adapter, said claw, upon insertion of said insertion guide into said adapter, is caused to ride onto said projection through elastic deformation of said claw so as to be brought into contact with said ejector and then, upon further insertion of said insertion guide into said adapter, said claw depresses said ejector in a direction opposite to the axial insertion direction so as to ride over said projection into engagement with said recess and said ejector is displaced in the axial insertion direction by said urging member through disengagement of said claw from said ejector so as to enclose said claw such that said plug coupled with said adapter, while at the time of uncoupling of said plug from said adapter, said ejector is released away from said claw upon displacement of said ejector in the direction opposite to the axial insertion direction and then, upon further displacement of said ejector in the direction opposite to the axial insertion direction, said claw is brought out of engagement with said recess so as to ride over said projection such that said plug is uncoupled from said adapter.
Claim 2
Dependent Claim
296 words
An optical connector for joining ends of optical fibers, comprising: an adapter which is formed with at least one claw; and a plug which is detachably coupled with said adapter; said plug including an insertion guide to be inserted into said adapter, an ejector disposed radially outwardly of said insertion guide and an urging member for urging said ejector in an axial insertion direction for inserting said insertion guide into said adapter; said insertion guide being formed, on an outer peripheral face thereof, with a projection and a recess disposed rearwardly of said projection in the axial insertion direction, whereby at the time of coupling of said plug with said adapter, said claw, upon insertion of said insertion guide into said adapter, is caused to ride onto said projection through elastic deformation of said claw so as to be brought into contact with said ejector and then, upon further insertion of said insertion guide into said adapter, said claw depresses said ejector in a direction opposite to the axial insertion direction so as to ride over said projection into engagement with said recess and said ejector is displaced in the axial insertion direction by said urging member through disengagement of said claw from said ejector so as to enclose said claw such that said plug coupled with said adapter, while at the time of uncoupling of said plug from said adapter, said ejector is released away from said claw upon displacement of said ejector in the direction opposite to the axial insertion direction and then, upon further displacement of said ejector in the direction opposite to the axial insertion direction, said claw is brought out of engagement with said recess so as to ride over said projection such that said plug is uncoupled from said adapter.
Claim 3
Dependent Claim
31 words
An optical connector as claimed in claim 1, wherein when said plug has been coupled with said adapter, said ejector is at least partially held in pressing contact with said claw.
Claim 4
Dependent Claim
55 words
An optical connector as claimed in claim 2, wherein said ejector is formed with a tapered surface and said claw is formed with a mating tapered surface engageable with said tapered surface such that said ejector is held in pressing contact with said claw through engagement between said tapered surface and said mating tapered surface.
Claim 5
Dependent Claim
35 words
An optical connector as claimed in claim 1, wherein said plug further includes a radially acting elastic member such that said ejector and said insertion guide are assembled with each other through said elastic member.
Claim 6
Dependent Claim
16 words
An optical connector as claimed in claim 4, wherein said elastic member is a retaining ring.
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) | 1991-02-22 | 1991-08-24 | 1992-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-22 | 1995-08-24 | 1996-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-22 | 1999-08-24 | 2000-02-23 | $7700.00 | Window Closed / Lapsed |