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Connectors for optical fibers
| Details |
Inventors: Dalgleish, Jack F.; Lukas, Helmut H.;
Assignee: Northern Electric Company Limited (Montreal, CA)
Primary Examiner: Corbin; John K.
Assistant Examiner: Henry; Jon W.
Attorney, Agent or Firm: Jelly; Sidney T.
A connector comprising a tubular connecting member having a bore which fits over a coated fiber and having a section which is preformed by deforming the walls of the member inwards to define a smaller central bore which is a close sliding fit on an uncoated fiber. Two coated fibers are connected by the uncoated fibers ends being inserted into the preformed section, a fiber from each end, until in end to end relationship. For a splice, a single connecting member is used and after insertion of the fibers, the ends of the member are crimped on to the coated fiber. For a releasable connector, the preformed section is toward one end of the connecting member which is crimped on to one coated fiber. The other fiber is crimped into a further tubular member with the uncoated fiber extending from the end for insertion in the preformed section of the connecting member. The connecting member and the further tubular member are held in axial alignment by a housing. |
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DETAILED DESCRIPTION What is claimed is: 1.
A connector for joining coated optical fibres in end to end relationship, comprising; a tubular connecting member having a bore of a size to slide on the coated optical fibres; a preformed section in said tubular connecting member, said preformed section comprising a plurality of radially inwardly deformed portions, said deformed portions defining a plurality of lobes, and a central bore of a size to be a close fit on an uncoated optical fibre; an inclined surface at each end of each radially deformed portion, each inclined surface extending from said bore of said connecting member to said central bore of said preformed section.
2.
A connector as claimed in claim 1 for permanently joining two optical fibres in end to end relationship, wherein said preformed section is positioned centrally in said tubular connecting member, a length of the connecting member extending on each side of said preformed section.
3.
A connector as claimed in claim 1 for releasably joining two coated optical fibres in end to end relationship, said preformed section positioned toward one end of a first tubular connecting member for positioning on the end of one coated optical fibre, and including a second tubular member having a bore to slide on the other coated optical fibre; a first housing member, said first tubular member in said first housing member; a second housing member, said second tubular member in said second housing member; and means for joining said first and second housing members in axial alignment, so constructed and arranged that the ends of optical fibres positioned in said tubular members are positioned in end to end relationship.
4.
A connector as claimed in claim 2, a first coated optical fibre positioned in one end of said tubular connecting member, the end of the first uncoated fibre extending into said central bore; a second coated fibre positioned in the other end of said tubular connecting member, the end of the second uncoated fibre extending into said central bore, the ends of the uncoated fibres in end to end relationship in said central bore; a first series of crimps at one end of said tubular connecting member to grip said first coated fibre, and a second series of crimps at the other end of said tubular connecting member to grip said second coated fibre
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