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US4718745A Expired / Lapsed US ⏱️ 0.0 years remaining

Optical fiber connector

Assignee: Times Fiber Communications Inc
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Filing: 1984-07-06
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Granted: 1988-01-12
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Expires: 2004-07-06
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Abstract

Abstract A device for connecting two optical fibers is disclosed. The connector enables two optical fibers to be coupled in a precise manner which minimizes losses at the connection interface and enables the ends of the optical fibers to be protected when the connection is severed. The connector uses axial and radial alignment means to provide precision alignment of the coupled optical fibers.

Inventors

  • 👤 Ross W. Strait, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 07:47
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3833; G02B6/3855; G02B6/3858; G02B6/3834; G02B6/3841; G02B6/3847; G02B6/3873; G02B6/3874; G02B6/3887; G02B6/3888; G02B6/389; G02B6/3894; G02B6/3898

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 267 words
A connector for coupling the ends of two lengths of optical fiber in contiguous, aligned position comprising: (i) two connector assemblies, each connector assembly comprising: (a) a three-pin sub-assembly comprising three like-size, generally cylindrical, rigid pins extending parallel to each other in contiguous relationship, said pins having a diameter such that an inscribed circle extending tangent to the pin circumferences in the interior space between the pins substantially corresponds to the diameter of a length of optical fiber, said three-pin, sub-assembly partially protruding from the proximal end of said connector assembly; (b) first retaining means surrounding the non-protruding portion of said three-pin sub-assembly for securely retaining the pins of the sub-assembly in contiguous relationship, the interior space extending between the circumferences of the pins defining a chamber for receiving a length of optical fiber; (c) second retaining means for providing a stress relieving space for the optical fiber adjacent to the distal end of the three-pin sub-assembly; (d) spring-loaded retaining means for securing an optical fiber within the chamber defined by the three pins of the sub-assembly by exertion of a radial compressive force on said optical fiber; and (e) coupling means for connecting the connector assembly to its mating connector assembly; (ii) first alignment means for connecting the coupling means of each connector assembly and including abutment means which abuts against the first retaining means of each connector assembly when they are connected by said alignment means; and (iii) second alignment means for securely retaining the protruding portions of each three-pin sub-assembly in contiguous relationship when the connector assemblies are connected by said first alignment means.
Claim 2
Dependent Claim 267 words
A connector for coupling the ends of two lengths of optical fiber in contiguous, aligned position comprising: (i) two connector assemblies, each connector assembly comprising: (a) a three-pin sub-assembly comprising three like-size, generally cylindrical, rigid pins extending parallel to each other in contiguous relationship, said pins having a diameter such that an inscribed circle extending tangent to the pin circumferences in the interior space between the pins substantially corresponds to the diameter of a length of optical fiber, said three-pin, sub-assembly partially protruding from the proximal end of said connector assembly; (b) first retaining means surrounding the non-protruding portion of said three-pin sub-assembly for securely retaining the pins of the sub-assembly in contiguous relationship, the interior space extending between the circumferences of the pins defining a chamber for receiving a length of optical fiber; (c) second retaining means for providing a stress relieving space for the optical fiber adjacent to the distal end of the three-pin sub-assembly; (d) spring-loaded retaining means for securing an optical fiber within the chamber defined by the three pins of the sub-assembly by exertion of a radial compressive force on said optical fiber; and (e) coupling means for connecting the connector assembly to its mating connector assembly; (ii) first alignment means for connecting the coupling means of each connector assembly and including abutment means which abuts against the first retaining means of each connector assembly when they are connected by said alignment means; and (iii) second alignment means for securely retaining the protruding portions of each three-pin sub-assembly in contiguous relationship when the connector assemblies are connected by said first alignment means.
Claim 3
Dependent Claim 29 words
A connector according to claim 1, wherein said first retaining means comprises a rigid metal sleeve circumferentially surrounding said pins and exerting a radial comprissive force on said pins.
Claim 4
Dependent Claim 33 words
A connector according to claim 1, wherein said second retaining means comprises a bushing having a first end portion in abutting relationship with the distal end of at least one of said pins.
Claim 5
Dependent Claim 91 words
A connector according to claim 1, wherein said spring-loaded retaining means comprises three like-size, arcuate shaped, rigid bodies extending parallel to each other in contiguous relationship, each of said bodies having a longitudinal groove running along the center of the arc defined by the body, thereby forming a central cylindrical longitudinal opening between said bodies and having a shoulder extending around the circumference of the body, said bodies being disposed within a spring-biased sliding ring which exerts a radial compressive force on the shoulders of said bodies forcing them radially inward.
Claim 6
Dependent Claim 33 words
A connector according to claim 1, wherein said first alignment means comprises a hollow, cylindrical, threaded metal sleeve which is adapted to be threadedly engaged with the coupling means of each connector assembly.
Claim 7
Dependent Claim 29 words
A connector according to claim 5, wherein said abutment means in said first alignment means comprises a washer which is press fitted within said hollow, cylindrical threaded metal sleeve.
Claim 8
Dependent Claim 26 words
A connector according to claim 1, wherein said second alignment means is a metal sleeve adapted to fit over the protruding portions of each three-pin sub-assembly.
Claim 9
Dependent Claim 21 words
A connector according to claim 1, further comprising third retaining means for retaining said three-pin sub-assembly with said first retaining means.
Claim 10
Dependent Claim 28 words
A connector according to claim 1, wherein each connector assembly contains a length of optical fiber disposed within said chamber defined by the circumferences of the three pins.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-01-11 1991-07-13 1992-01-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-01-11 1995-07-13 1996-01-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-01-11 1999-07-13 2000-01-12 $7700.00 Window Closed / Lapsed

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