IP Library Granted Patent US 12693478
Granted Patent B2
US 12693478 · App. 18/265,515 · Granted Jul 28, 2026

Reinforced optical cable connector

Inventors: Marcela Carneiro Lopes (Curitiba, BR); Thiago Deconto Vieira (Curitiba, BR); Renato Flávio Cruz (Curitiba, BR); Lucas Gabriel Chaves (Curitiba, BR)
Assignee: Furukawa Electric Latam S.A.
G02B6/387G02B6/3825G02B6/3831G02B6/3857G02B6/3877
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Quick Facts
Patent No.
US 12693478
App. No.
18/265,515
Granted
Jul 28, 2026
Kind
B2
Abstract

The present invention relates to a reinforced optical cable connector comprising an inner body for housing an optical cable, the inner body comprising a plug holder for securing a connection plug at a first end; a crimping base comprising a retaining sleeve for retaining the optical cable; and an outer housing for housing the inner body, the crimping base; wherein the crimping base comprises a fastener for engagement with the inner body; and the inner body comprises a mating surface at a second end opposite the first end for attaching the crimping base fastener.

Claims (35)

1 . A reinforced optical cable connector comprising:

an inner body for housing an optical cable comprising at least one optical fiber, the inner body comprising a plug holder for securing a connection plug at a first end;

a crimping base comprising a retaining sleeve for retaining the optical cable; and

an outer housing to house the inner body and the crimping base;

wherein the inner body comprises a gripping region at a second end opposite the first end, the gripping region having a C-shaped cross section forming an opening for passage of a fastener;

wherein the crimping base comprises the fastener for fitting into the inner body; through the opening, the fastener comprising an arc-shaped lower fitting edge having a slot in a central region thereof, lower fastening teeth provided on ends adjacent to the slot, and side fastening teeth provided on side faces of the fastener;

wherein the gripping region comprises a mating surface and holes arranged for engagement with the lower fastening teeth and the side fastening teeth for securing the fastener of the crimping base;

wherein a protrusion is provided on an edge of the gripping region extending radially inward and having a thickness greater than a thickness of the mating surface; and

wherein the opening guides the fastener over the mating surface and the protrusion for fitting.

2 . The reinforced optical cable connector according to claim 1 , wherein the fastener comprises an arc-shaped bottom fitting edge and side fitting faces; and

the mating surface has a shape corresponding to the fastener.

3 . The reinforced optical cable connector according to claim 2 , wherein the mating surface has an arc shape having length and width corresponding to the arc-shaped lower fitting edge and side faces, having an equal angulation, for securing the side fitting faces of the fastener of the crimping base.

4 . The reinforced optical cable connector according to claim 3 , wherein the lower fitting edge comprises a notch and the mating surface-comprises a projection for fixing the notch.

5 . The reinforced optical cable connector according to claim 1 , wherein the crimping base has a conical body, the fastener, and a neck-formed between them.

6 . The reinforced optical cable connector according to claim 1 , wherein the fastener comprises an upper fitting edge-.

7 . The reinforced optical cable connector according to claim 6 ,

wherein the upper fitting edge comprises a notch for fixing a reinforced body, and the reinforced body comprises an arc-shaped channel and a guide feature for engaging the notch.

8 . The reinforced optical cable connector according to claim 7 , wherein the reinforced body comprises fixing elements for fixing the external housing.

9 . The reinforced optical cable connector according to claim 7 , wherein the reinforced body comprises a hole and the outer housing comprises a locking hole, in which the locking holes and the locking hole are aligned when the outer housing is fixed in the reinforced body, and

a clamp attached to the locking hole to lock the outer housing.

10 . The reinforced optical cable connector according to claim 7 , wherein the reinforced body comprises a recess for fitting a tag with a radio frequency identifier.

11 . The reinforced optical cable connector according to claim 7 , wherein the outer housing is fitted over the reinforced body, in which the outer housing comprises at one end fastening elements for coupling a cable gland and at the other end fastening elements for coupling a protection ferrule.

12 . The reinforced optical cable connector according to claim 11 , wherein a tail protector is positioned next to the cable gland to provide versatility of cable diameter and geometry variations, in which the tail protector is preferably a heat shrinkable element.

13 . The reinforced optical cable connector according to claim 1 , wherein the cable retaining sleeve comprises side openings for fixing optical cable traction elements and a shoulder for positioning a crimping ring.

14 . The reinforced optical cable connector, according to claim 13 , wherein the crimping ring has a greater length than the retaining sleeve so that a region is positioned in contact with the retaining sleeve next to the shoulder and the other region in direct contact with a cover of the optical cable comprises internal threads for adherence with the optical cable.

15 . The reinforced optical cable connector according to claim 1 , wherein the retaining sleeve is a separate part of the crimping base.

16 . The reinforced optical cable connector according to claim 15 , wherein the retaining sleeve has a rib for positioning a conical body of the crimping base; and the retaining sleeve has a flange for its attachment within the crimping base.

17 . The reinforced optical cable connector according to claim 1 , wherein the gripping region has a constant C-shaped cross section.

18 . The reinforced optical cable connector according to claim 1 , wherein the inner body comprises an angled portion having a cross-section in C that gradually reduces; and a semicircular portion with semicircular cross section.

19 . The reinforced optical cable connector according to claim 1 , wherein the optical cable is a monofiber cable and the connection plug is of the SC type.

20 . The reinforced connector according to claim 1 , wherein the optical cable is a multifiber cable and the connection plug is of the MPO type.

21 . The reinforced optical cable connector according to claim 1 , wherein the optical cable is a hybrid cable comprising an electrical conductor.

22 . The reinforced optical cable connector according to claim 1 , wherein the arc-shaped lower fitting edge further comprises a notch, and the mating surface comprises a projection configured to engage and fix the notch.

23 . The reinforced optical cable connector according to claim 1 , wherein the fastener further comprises an upper fitting edge having a notch for fixing a reinforced body, and the reinforced body comprises an arc-shaped channel and a guide feature for engaging the notch of the upper fitting edge.

24 . The reinforced optical cable connector according to claim 1 , wherein the crimping base comprises a conical body, the fastener, and a neck formed between the conical body and the fastener.