IP Library Granted Patent US 12699224
Granted Patent B2
US 12699224 · App. 17/711,019 · Granted Aug 4, 2026

Window cutting tool for multi-fiber cable

Inventors: Harvey Etheridge (Norfolk, GB); Shaun Trezise (Aldeburgh, GB)
Assignee: PPC BROADBAND FIBER LTD.
G02B6/25G02B6/566H02G1/1217
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Quick Facts
Patent No.
US 12699224
App. No.
17/711,019
Granted
Aug 4, 2026
Kind
B2
Abstract

A window cutting tool includes a first body, a second body configured to be pivotally coupled with the first body between an open configuration and a closed configuration, and a blade carriage configured to carry a blade and to be slidingly coupled with at least one of the first body and the second body. At least one of the first body and the second body is configured to guide sliding movement of the blade carriage relative to the first body and the second body in a longitudinal direction. The first body and the second body are configured to expose a portion of a multi-fiber cable to the blade carriage when the first body and the second body are in the closed configuration. The blade is configured to cut through a jacket of the multi-fiber cable without damaging an individual fiber within the multi-fiber cable to form a window that is configured to allow a technician to access the individual fiber within the multi-fiber cable.

Claims (63)

1 . A window cutting tool configured to cut a window through a jacket of a multi-fiber cable so that individual fibers within the cable can be accessed via the window, comprising:

a first body configured to extend in a longitudinal direction;

a second body configured to extend in the longitudinal direction and be coupled with the first body;

a blade carriage configured to be slidingly coupled with the first body and the second body;

wherein the first body and the second body are configured to pivot relative to one another about a hinge between an open configuration and a closed configuration;

wherein an inner wall of the first body and an inner wall of the second body are configured to move toward and away from one another as the first body and the second body are pivotally moved relative to one another between the open configuration and the closed configuration;

wherein the inner wall of the first body defines a first portion of a curved groove that extends from a first end of the first body to a second end of the first body in the longitudinal direction, and the inner wall of the second body defines a second portion of the curved groove;

wherein an outer wall of the first body and an outer wall of the second body each include a linear groove configured to guide sliding movement of the blade carriage relative to the first body and the second body in the longitudinal direction;

wherein the inner wall of the first body and the inner wall of the second body each include alignment structures configured to move a multi-fiber cable that extends in a longitudinal direction between the inner wall of the first body and the inner wall of the second body into the curved groove when the first body and the second body are pivotally moved relative to one another from the open configuration to the closed configuration;

wherein the curved groove is configured to expose a curved portion of the multi-fiber cable to an exterior of the first body and the second body when the first body and the second body are in the closed configuration;

wherein the blade carriage is configured to carry a blade at an acute angle relative to the exposed curved portion of the multi-fiber cable such that the blade is configured to cut a window through a jacket of the exposed curved portion of the multi-fiber cable as the blade carriage is slidingly moved relative to the first body and the second body in the longitudinal direction; and

wherein the window cutting tool is configured to cut through the jacket of the multi-fiber cable at a desired depth to form a desired sized window without damaging individual fibers within the multi-fiber cable and that allows access to the individual fibers within the multi-fiber cable.

2 . The window cutting tool of claim 1 , wherein the alignment structures include projections extending from the inner wall of the first body and the inner wall of the second body.

3 . The window cutting tool of claim 1 , wherein the blade carriage includes a blade carrying portion configured to carry the blade and extension arms configured to extend from the blade carrying portion;

wherein the extension arms are configured to straddle the first body and the second body in the closed configuration.

4 . The window cutting tool of claim 3 , wherein the extension arms include guide portions configured to be received in the linear grooves and to guide sliding movement of the blade carriage relative to the first body and the second body in the longitudinal direction.

5 . A window cutting tool configured to cut a window through a jacket of a multi-fiber cable, comprising:

a first body;

a second body configured to be pivotally coupled with the first body between an open configuration and a closed configuration;

a blade carriage configured to be slidingly coupled with the first body and the second body;

wherein an inner wall of the first body and an inner wall of the second body are configured to move toward and away from one another as the first body and the second body are pivotally moved relative to one another between the open configuration and the closed configuration;

wherein the inner wall of the first body and the inner wall of the second body cooperate to define a curved groove extending from a first end of the first body to a second end of the first body in a longitudinal direction;

wherein at least one of an outer wall of the first body and an outer wall of the second body includes a guide feature configured to guide sliding movement of the blade carriage relative to the first body and the second body in the longitudinal direction;

wherein at least one of the inner wall of the first body and the inner wall of the second body includes an alignment feature configured to move a multi-fiber cable that extends in a longitudinal direction between the inner wall of the first body and the inner wall of the second body into the curved groove when the first body and the second body are pivotally moved relative to one another from the open configuration to the closed configuration;

wherein the curved groove is configured to expose a curved portion of the multi-fiber cable to an exterior of the first body and the second body when the first body and the second body are in the closed configuration;

wherein the blade carriage is configured to carry a blade at an acute angle relative to the exposed curved portion of the multi-fiber cable such that the blade is configured to cut a window through a jacket of the exposed curved portion of the multi-fiber cable as the blade carriage is slidingly moved relative to the first body and the second body in the longitudinal direction; and

wherein the window cutting tool is configured to consistently and reliably cut through the jacket of the multi-fiber cable at a desired depth to form a desired sized window without damaging an individual fiber within the multi-fiber cable and that allows access to the individual fiber within the multi-fiber cable.

6 . The window cutting tool of claim 5 , wherein the alignment feature includes a projection extending from the at least one of the inner wall of the first body and the inner wall of the second body.

7 . The window cutting tool of claim 5 , wherein the blade carriage includes a blade carrying portion configured to carry the blade and extension arms configured to extend from the blade carrying portion;

wherein the extension arms are configured to straddle the first body and the second body in the closed configuration.

8 . The window cutting tool of claim 7 , wherein at least one of the extension arms includes a guide portion configured to be received in the guide feature and to guide sliding movement of the blade carriage relative to the first body and the second body in the longitudinal direction.

9 . The window cutting tool of claim 5 , wherein the first body and the second body are configured to pivot relative to one another about a hinge between the open configuration and the closed configuration.

10 . The window cutting tool of claim 5 , wherein the inner wall of the first body defines a first portion of the curved groove and the inner wall of the second body defines a second portion of the curved groove.

11 . The window cutting tool of claim 5 , wherein the outer wall of the first body and the outer wall of the second body each include the guide feature configured to guide sliding movement of the blade carriage relative to the first body and the second body in the longitudinal direction.

12 . The window cutting tool of claim 5 , wherein the inner wall of the first body and the inner wall of the second body include the alignment structure configured to move the multi-fiber cable into the curved groove when the first body and the second body are pivotally moved relative to one another from the open configuration to the closed configuration.

13 . A window cutting tool comprising:

a first body;

a second body configured to be pivotally coupled with the first body between an open configuration and a closed configuration;

a blade carriage configured to carry a blade and to be slidingly coupled with at least one of the first body and the second body;

wherein at least one of the first body and the second body is configured to guide sliding movement of the blade carriage relative to the first body and the second body in a longitudinal direction;

wherein the first body and the second body are configured to expose a portion of a multi-fiber cable to the blade carriage when the first body and the second body are in the closed configuration;

wherein the blade carriage includes a blade carrying portion configured to carry the blade and extension arms configured to extend from the blade carrying portion; and

wherein the extension arms are configured to straddle the first body and the second body in the closed configuration; and

wherein the blade is configured to cut through a jacket of the multi-fiber cable in the longitudinal direction as the blade carriage slides relative to the first body and the second body without damaging an individual fiber within the multi-fiber cable so as to form a window that is configured to allow access to the individual fiber within the multi-fiber cable.

14 . The window cutting tool of claim 13 ,

wherein the first body and the second body are configured to define a curved groove configured to extend from a first end of the first body to a second end of the first body in a longitudinal direction and to expose a curved portion of a multi-fiber cable;

wherein at least one of the first body and the second body includes an alignment feature configured to move the multi-fiber cable into the curved groove when the first body and the second body are pivotally moved relative to one another from the open configuration to the closed configuration; and

wherein the alignment feature includes a projection extending from the at least one of an inner wall of the first body and an inner wall of the second body.

15 . The window cutting tool of claim 13 , wherein at least one of the extension arms includes a guide portion configured to be received in a guide feature of at least one of the first body and the second body and to guide sliding movement of the blade carriage relative to the first body and the second body in the longitudinal direction.

16 . The window cutting tool of claim 15 , wherein an outer wall of the first body and an outer wall of the second body each include the guide feature configured to guide sliding movement of the blade carriage relative to the first body and the second body in the longitudinal direction.

17 . The window cutting tool of claim 13 , wherein the first body and the second body are configured to pivot relative to one another about a hinge between the open configuration and the closed configuration.

18 . A window cutting tool comprising:

a first body;

a second body configured to be pivotally coupled with the first body between an open configuration and a closed configuration;

a blade carriage configured to carry a blade and to be slidingly coupled with at least one of the first body and the second body;

wherein at least one of the first body and the second body is configured to guide sliding movement of the blade carriage relative to the first body and the second body in a longitudinal direction;

wherein the first body and the second body are configured to expose a portion of a multi-fiber cable to the blade carriage when the first body and the second body are in the closed configuration;

wherein the first body and the second body are configured to define a curved groove configured to extend from a first end of the first body to a second end of the first body in a longitudinal direction and to expose a curved portion of a multi-fiber cable;

wherein at least one of the first body and the second body includes an alignment feature configured to move the multi-fiber cable into the curved groove when the first body and the second body are pivotally moved relative to one another from the open configuration to the closed configuration;

wherein the alignment feature includes a projection extending from the at least one of an inner wall of the first body and an inner wall of the second body; and

wherein the blade is configured to cut through a jacket of the multi-fiber cable in the longitudinal direction as the blade carriage slides relative to the first body and the second body without damaging an individual fiber within the multi-fiber cable so as to form a window that is configured to allow access to the individual fiber within the multi-fiber cable.

19 . The window cutting tool of claim 18 , wherein an inner wall of the first body defines a first portion of the curved groove and an inner wall of the second body defines a second portion of the curved groove.

20 . The window cutting tool of claim 18 , wherein an inner wall of the first body and an inner wall of the second body each include the alignment feature configured to move the multi-fiber cable into the curved groove when the first body and the second body are pivotally moved relative to one another from the open configuration to the closed configuration.