US4890897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single mode connector
Assignee: 3M Co
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Filing: 1988-05-18
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Granted: 1990-01-02
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Expires: 2008-05-18
Abstract
Abstract A single mode optical fiber connector assembly for reducing the need for both positional and angular accuracy is provided. A housing and two single mode optical plugs each containing an optical fiber therein are provided. The housing, is adapted to receive a plug in each end of the housing and is dimensioned to automatically secure the plugs in both positional and angular alignment.
Inventors
- 👤 John S. Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:40
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/32
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
145 words
A single mode optical fiber connector assembly comprising: a first single mode optical plug containing an optical fiber therein; a second single mode optical plug containing an optical fiber therein; positioning means for optically coupling said first single mode optical plug and said second single mode optical plug and automatically securing each of said optical plugs in angular alignment with each other, said positioning means including a housing having a first end and second end, a respective single mode optical plug being received in a respective end, a septum integrally formed within said single mode optical plug being conical in shape to rest within said septum and an inner surface of said housing coming in contact with a tail end of each of said first and second single mode optical plugs thereby automatically angularly aligning each of said single mode optical plugs with the other.
Claim 2
Dependent Claim
145 words
A single mode optical fiber connector assembly comprising: a first single mode optical plug containing an optical fiber therein; a second single mode optical plug containing an optical fiber therein; positioning means for optically coupling said first single mode optical plug and said second single mode optical plug and automatically securing each of said optical plugs in angular alignment with each other, said positioning means including a housing having a first end and second end, a respective single mode optical plug being received in a respective end, a septum integrally formed within said single mode optical plug being conical in shape to rest within said septum and an inner surface of said housing coming in contact with a tail end of each of said first and second single mode optical plugs thereby automatically angularly aligning each of said single mode optical plugs with the other.
Claim 3
Dependent Claim
39 words
The optical fiber connector assembly of claim 1, further comprising, beam widening means contained within each of said first and second plugs for increasing the width of a beam of light as it exits from each of said plugs.
Claim 4
Dependent Claim
58 words
The single mode optical fiber connector assembly of claim 2, wherein said beam widening means comprises a nose integrally formed on each of said first and said second single mode optical plugs, a lens contained within each nose, said lens having one end in contact with said optical fiber and said lens being coaxial with said optical fiber.
Claim 5
Dependent Claim
35 words
The single mode optical fiber connector assembly of claim 1, further comprising disconnectable holding means for securing the said first single mode optical plug and said second single mode optical plug within said positioning means.
Claim 6
Dependent Claim
35 words
The single mode optical fiber connector assembly of claim 1, further comprising disconnectable holding means for securing the said first single mode optical plug and said second single mode optical plug within said positioning means.
Claim 7
Dependent Claim
61 words
The single mode optical fiber connector assembly of claim 5, wherein the disconnectable holding means comprises a plurality of bayonet pegs integrally formed on the other surface of said housing approximate each of said ends, a cap being selectively mounted on said bayonet pegs and covering each opening of said housing, thereby securing each of said first and second plugs therein.
Claim 8
Dependent Claim
18 words
The single mode optical fiber connector assembly of claim 3, wherein the lens is a graded index lens.
Claim 9
Dependent Claim
15 words
The single mode optical connector of claim 1, wherein said housing is made of steel.
Claim 10
Dependent Claim
21 words
The single mode optical connector of claim 3, wherein said lens is positioned at an angle relative to said optical fiber.
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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) | 1993-01-01 | 1993-07-03 | 1994-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-01 | 1997-07-03 | 1998-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-01 | 2001-07-03 | 2002-01-02 | $7700.00 | Window Closed / Lapsed |