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US5257333A Expired / Lapsed US ⏱️ 0.0 years remaining

Connecting device for interconnection of optical fibres

Assignee: Individual
•
Filing: 1990-10-10
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Granted: 1993-10-26
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Expires: 2010-10-10
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Abstract

Abstract Connection device for connecting the end portions of optical fibres (30) comprising insertion means (12) and receiving means (11) designed for cooperation with at least a centering means (37) for radial and axial centering of the end portions of the optical fibres relative to each other. The centering means (37) is comprised of a sleeve (38) being closed in cross-section and provided with internal guiding elements (39) in the form of centering shanks extending in the longitudinal direction, and external guiding elements (40) in the form of ridge formed portions (40) extending in the longitudinal direction of the sleeve connected to the centering shanks and designed to allow the centering shanks to radially spring in a direction toward and from the center axis of the sleeve.

Inventors

  • 👤 Anders Nodfelt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 19:37
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3833; G02B6/3834; G02B6/3841; G02B6/3869; G02B6/3873; G02B6/3874; G02B6/3882; G02B6/3887; G02B6/3888

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 235 words
Connection device for connecting the end portions of axially opposite to each othe situated optical fibres (30) and comprising insertion (12) and receiving means (11) designed for cooperation with at least a centering means (37), in form of a conical sleeve (47) provided with guiding elements (39) extending in the longitudinal direction of the sleeve cooperating with conical seats (50) of the receiving means (11) for radial and axial centering of the end portions of the optical fibres relatively each other, characterized therein, that the insertion means (12) comprises at least three cylindrical rods (33), which between themselves form a central channel (34) for receiving of the optical fibres (30), and which rods with their internal end portion are fixed in the retainer (13) of the insertion means (12) and with their external end portion are situated outside this forming its connection pin (32), designed for cooperation with the centering means (37), and that the attachment end is provided to be bent radially outward and fixed in these positions during simultaneous compression of the rods in a direction towards the center axis of the insertion means (12), and that the conical sleeve (47) is closed in cross section by the resilient sectors (48) which consist of material weakened axial portions (49) along the entire length of the sleeve, which sectors are elastically deformable and/or in section curved, folded or in an other way elastically compliant.
Claim 2
Dependent Claim 235 words
Connection device for connecting the end portions of axially opposite to each othe situated optical fibres (30) and comprising insertion (12) and receiving means (11) designed for cooperation with at least a centering means (37), in form of a conical sleeve (47) provided with guiding elements (39) extending in the longitudinal direction of the sleeve cooperating with conical seats (50) of the receiving means (11) for radial and axial centering of the end portions of the optical fibres relatively each other, characterized therein, that the insertion means (12) comprises at least three cylindrical rods (33), which between themselves form a central channel (34) for receiving of the optical fibres (30), and which rods with their internal end portion are fixed in the retainer (13) of the insertion means (12) and with their external end portion are situated outside this forming its connection pin (32), designed for cooperation with the centering means (37), and that the attachment end is provided to be bent radially outward and fixed in these positions during simultaneous compression of the rods in a direction towards the center axis of the insertion means (12), and that the conical sleeve (47) is closed in cross section by the resilient sectors (48) which consist of material weakened axial portions (49) along the entire length of the sleeve, which sectors are elastically deformable and/or in section curved, folded or in an other way elastically compliant.
Claim 3
Dependent Claim 45 words
Connection device according to patent claim 1, characterized therein, that the attachment end of the rods (33) is formed with at least one radially projecting means (36) for cooperation with corresponding means (22) at the insertion means (12) for axial locking of the rods (33).
Claim 4
Dependent Claim 91 words
Connection device according to patent claim 1, characterized therein, that the rods are formed as cantilevers, one arm of which is constituted by the attachment end of rod, which is provided with a smoothed down portion (35), which is arranged to cooperate with a conical guiding surface (21) in the insertion means (12), and that the guiding surfaces (12) are designed to press said attachment ends radially outwards, so that the external end portions formed by the connection pins of the insertion means are pressed radially into contact with each other.
Claim 5
Dependent Claim 82 words
Connection device according to patent claim 1, characterized therein that the resilient sectors of the centering means (37) are constituted by axial edge foldings (40), ridges or the like, that each edge folding (40) contains resilient centering shanks the bent edge (41) of which is formed to constitute one of the external guiding surfaces of the centering means, and that the portions between the edge foldings are formed to constitute the internal guiding and centering surfaces (39) of the centering means (37).
Claim 6
Dependent Claim 50 words
Connection device according to patent claim 1, characterized therein, that the centering means (37) is constituted by a conical sleeve (47), the resilient sectors (48) of which consist of material weakened axial portions (49), which are elastically deformable and/or in section curved, folded or in an other way elastically compliant.
Claim 7
Dependent Claim 59 words
Connection device according to patent claim 1, characterized therein, that the centering means (37) is constituted by a sleeve (38) on the inside provided with axially oriented centering surfaces (39) corresponding to the number of rods (33), which surfaces each shom a bow formed portion (46) connected to the inside of the sleeve by means of radial flanges (43).
Claim 8
Dependent Claim 50 words
Connection device according to patent claim 5, characterized therein, that the receiving means (11) is formed with double sided receiving points for two coaxially connectable insertion means (12) from each side, and, that each receiving point is shaped with a conicity corresponding to the conicity of the centering sleeve (37).
Claim 9
Independent Claim 175 words
A device for connecting the end portions of optical fibres (30) comprising: insertion means (12) for receiving the end of an optical fibre, tubular receiving means (11) having a central opening extending therethrough, said opening having conical seats (50) at each end thereof, said conical seats being in axial alignment with each other and opening outward from said receiving means (11), a conical sleeve (37) having an inner passage extending therethrough and an outer conical surface dimensioned to conform to and to mate with said conical seats (50), said sleeve (37), including a plurality of resilient, flexible sectors (48) which extend longitudinally along the entire length of said sleeve (37), said sectors (48) being elastically deformable and/or in section curved, folded or otherwise elastically compliant, and said inner passage dimensioned to receive said insertion means, and means for securing (24) said conical sleeve (37) within said opening in said receiving means (11) wherein said outer conical surface of said conical surface of said conical sleeve (37) is forced into engagement with said conical seat (50).
Claim 10
Independent Claim 175 words
A device for connecting the end portions of optical fibres (30) comprising: insertion means (12) for receiving the end of an optical fibre, tubular receiving means (11) having a central opening extending therethrough, said opening having conical seats (50) at each end thereof, said conical seats being in axial alignment with each other and opening outward from said receiving means (11), a conical sleeve (37) having an inner passage extending therethrough and an outer conical surface dimensioned to conform to and to mate with said conical seats (50), said sleeve (37), including a plurality of resilient, flexible sectors (48) which extend longitudinally along the entire length of said sleeve (37), said sectors (48) being elastically deformable and/or in section curved, folded or otherwise elastically compliant, and said inner passage dimensioned to receive said insertion means, and means for securing (24) said conical sleeve (37) within said opening in said receiving means (11) wherein said outer conical surface of said conical surface of said conical sleeve (37) is forced into engagement with said conical seat (50).

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1996-10-25 1997-04-26 1997-10-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2000-10-25 2001-04-26 2001-10-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2004-10-25 2005-04-26 2005-10-26 $7700.00 Window Closed / Lapsed

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