CA2351882A1 - Optical fibre ribbon cleaver and method - Google Patents
Optical fibre ribbon cleaver and method Download PDFInfo
- Publication number
- CA2351882A1 CA2351882A1 CA 2351882 CA2351882A CA2351882A1 CA 2351882 A1 CA2351882 A1 CA 2351882A1 CA 2351882 CA2351882 CA 2351882 CA 2351882 A CA2351882 A CA 2351882A CA 2351882 A1 CA2351882 A1 CA 2351882A1
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- Canada
- Prior art keywords
- optical fibre
- horizontally
- cleaver
- stage
- secured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
A system is provided herein for cleaving individual optical fibres in an optical fibre ribbon at two different lengths. The system includes a base supporting two horizontally-spaced apart tables. An upstream one of the two horizontally-spaced apart tables includes a support member secured thereto, the support member supporting a stage, which is resiliently passed and slidable horizontally with respect to the support member, a micropositioner including a nose which is horizontally-movable into contact with the stage to move the stage against the resilient bias, and a gauge including a nose which is resiliently horizontally movable into contact with said stage. A downstream one of the two horizontally-spaced apart tables includes a cleaver support secured thereto, said cleaver support including a cleaver, a clamp secured thereto, and an optical fibre tensioning member.
Description
OPTICAL FIBRE RIBBON CLEAVER AND METHOD
BACKGROUND OF THE INVENTION
Field of the Invention This invention relates to a system and method for cleaving an optical fibre and ribbon.
DESCRIPTION OF TAE PRIOR ART
In recent years, fibre optic cables have replaced traditional copper wire as the preferred medium for telecommunications. As with copper wires, it is necessary to provide cross-connections and interconnections between optical fibres at various locations in the distribution system. This is typically accomplished with the use of an optical fibre connector or splice, but it is first necessary to prepare the terminal ends of the fibres being spliced. The prior art techniques for fibre preparation include cleaving the end of the fibre to provide a planar finish perpendicular to the fibre axis, which minimizes insertion losses associated with irregularities on the fibre end face. Early prior art cleaving devices were designed to cleave a single (discrete) fibre; later devices allow for the simultaneous cleaving of multiple fibres, for example, fibres which have been formed into a fibre ribbon.
There are many patents which relate to the cleaving of optical fibres. Among them are the following:
1. 3,934,773 issued January 27, 1976 to Bell Telephone Laboratories 2. 4,027,814 issued June 7, 1977 to Bell Telephone Laboratories 3. 5,024,363 issued June 18, 1991 to Fujikura Ltd.
BACKGROUND OF THE INVENTION
Field of the Invention This invention relates to a system and method for cleaving an optical fibre and ribbon.
DESCRIPTION OF TAE PRIOR ART
In recent years, fibre optic cables have replaced traditional copper wire as the preferred medium for telecommunications. As with copper wires, it is necessary to provide cross-connections and interconnections between optical fibres at various locations in the distribution system. This is typically accomplished with the use of an optical fibre connector or splice, but it is first necessary to prepare the terminal ends of the fibres being spliced. The prior art techniques for fibre preparation include cleaving the end of the fibre to provide a planar finish perpendicular to the fibre axis, which minimizes insertion losses associated with irregularities on the fibre end face. Early prior art cleaving devices were designed to cleave a single (discrete) fibre; later devices allow for the simultaneous cleaving of multiple fibres, for example, fibres which have been formed into a fibre ribbon.
There are many patents which relate to the cleaving of optical fibres. Among them are the following:
1. 3,934,773 issued January 27, 1976 to Bell Telephone Laboratories 2. 4,027,814 issued June 7, 1977 to Bell Telephone Laboratories 3. 5,024,363 issued June 18, 1991 to Fujikura Ltd.
4. 5,031,321 issued July 16, 1991 to British Telecommunications 5. 5,125,549 issued June 30, 1992 to DuPont 6. 5,133,113 issued July 28, 1992 to Photon Kinetics Inc 7. 5,351,333 issued September 27, 1994A.E. Chambers to 8. 5,395,025 issued March 7, 1995 to Minnesota Minery & Manufacturing 9. 5,501,385 issued March 26, 1996 J.M. Halpin to I0. 5,563,974 issued October 8, 1996 Minnesota Mining & Manufacturing to 11. 5,839,635 issued November 24, 1998 Minnesota Mining & Manufacturing to These patents all included some type of clamping device to clamp the optical fibre or component (ferrule) thereon, and some type of cleaving device. For example, the following patents identified by numbers above, provide devices for clamping optical fibres or their component (ferrule).
Patent number 2 discloses friction producing clamp for holding separate sections of the optical fibre rod. These are provided by a fixed clamp and a movable clamp. The clamps are configured to exert and upward force on the optical fibre rod.
Patent number 3 discloses at least three clamps, with two adjacent clamps being configured to clamp above portion of the optical fibre and the remaining clamp being configured to clamp a sheathed portion of the optical fibre.
Patent number 4 disclosed resilient clamps. The clamps are configured to clamp the main portion of the optical fibre and the waste portion of the optical fibre.
Patent number 5 discloses means for gripping the fibre and means for gripping the ferrule including a ferrule holder having a moderation for receiving half of the ferrule.
Patent number 6 discloses a clamp for gripping an optical fibre. The clamp includes a mounting block and primary and secondary movable clamping gates, together with latches to hold the gates and their closed positions.
Patent number 7 provides a holder to hold an optical fibre, which includes a guide holder to receive and hold the optical fibre.
Patent number 8 discloses a device which includes a support having two lower pads aligned with two upper pads on a hinged cover so that optical fibres may be clamped between respective pairs of lower and upper pads.
Patent number 9 discloses a device including C chuck block having a just holding mean for holding an optical fibre within the chuck during scribing the cleaving, on fibre connector block for holding the optical fibre during scribing and cleaving.
Patent number 10 discloses a tool which includes a body having a cavity for receiving the ferrule of the connector and a floor which contacts the end face of the ferrule when the ferrules fully inserted into the cavity.
Patent number I I discloses a device including first and second pair of optical fibre clamps separated by a just predetermined distance as well as another pair of optical fibre clamp at a predetermined distance apart.
The prior art also discloses various principles for cleaving the optical fibre. One such principal as described in Patent number 11 and in Patent number 2. According to such principles a decreasing tensile stress is established across the cross-section of the rod which, at all points, is greater than zero but less than the threshold stress at which a mist zone forms. This may conveniently be achieved by simultaneously applying a longitudinal tension to the rod and bending it.
Another principle is disclosed in Patent number 3. According to that principle a scoring blade scores the optical fibre perpendicular to the optical fibre. There a pushing member applies a stress to the fibre from the opposite side of the score to cut the fibre.
Another application of that principle is disclosed in Patent number 4. In that patent a manual cleaver having two jaws includes a blade on an upper jaw which applies a force to the optical fibre to produce a score of the desired depth. There a further closure of the jaw applies longitudinal tensions to the fibre C produce cleaving.
Yet another application of that principle is disclosed in Patent number 5. In that patent, a score is formed and means are provided for providing both tensile and shearing forces to the fibre at or near the scoring point to break the fibre.
Yet another application of that principle is disclosed in Patent number 8. In that patent a plurality of optical fibres are simultaneously cleaved at the same position, which differs from the other patents where a single fibre is cleaved.
AIMS OF THE INVENTION
However, no prior art device has been provided which can cleave multiple fibres wherein the cleaved fibres are of slightly different lengths.
Accordingly, the present invention has for its principal object the provision of an apparatus in which the optical fibre ribbon can be cleaved, wherein the individual optical fibres have slightly different lengths.
The present invention has for another of its objects a method for cleaving optical fibres, wherein the cleaved optical fibres have slightly different lengths.
STATEMENT OF INVENTION
The present invention provides a system and a method to achieve the above aims.
The present invention thus provides a system for cleaving individual optical fibres in an optical fibre ribbon at two different lengths. The system includes a base supporting two horizontally-spaced apart tables. An upstream one of the two horizontally-spaced apart tables includes a support member secured thereto, since support member supporting a stage which is resiliently passes and slidable horizontally with respect to said support member a micropositioner including a nose which is horizontally movable into contact with said stage to more said stage against said resilient bias and a gauge including a nose which a resiliently horizontally moveable in contact with said stage. A downstream one of the horizontally spaced apart tables includes a cleaver support secured thereto, the cleaver support including a cleaver, a clamp secured thereto, and an optical fibre tensioning member.
The present invention also provides a method for cleaving optical fibres in an optical fibre ribbon at accurately predetermined different lengths. The method comprises clamping the female of said optical fibre ribbon to a fixed structure, applying a tensile force to the optical fibre, manually separating the individual optical fibre of the optical fibre ribbon, scribing and cleaving one of the said individual optical fibre while the said optical fibre or subjected to said tensile force, moving the said optical fibre ribbon having one uncleaved optical fibre a predetermined distance from the cleaved end of the cleaver fibre; and scribing and cleaving the uncleaved optical fibre while the said optical fibre is under tensile force.
OTHER FEATURES OF THE INVENTION
One feature of the system of this invention provides a support member which includes a horizontal portion which is secured to the upstream table, and an upstanding horizontal portion.
A second feature of the system of this invention provides a system wherein the stage includes a horizontal portion which is resiliently-slidably movable with respect to the said support member, and a horizontal portion supporting the horizontally-movable nose or the micropositioner and the resiliently-horizontally-movable nose on the depth gauge.
A specific feature of the system of this invention is a system wherein the depth gauge is a digital depth gauge.
Another feature of the system of this invention is a system wherein the optical fibre ribbon tensioning member comprises a pulley, which is free-wheelingly mounted to the downstream end of the cleaver support end, which is configured to support a weight which may be secured to one end of the optical fibre ribbon.
One feature of the method of this invention is one wherein the tensile force is applied to the optical fibre ribbon by means of a weight which is attached to an end of the optical fibre ribbon.
Another feature of the method of this invention is one wherein the predetermined fixed distance is from 1 to 10 Vim.
BRIEF DESCRIPTION OF THE DRAWirIGS
In the accompanying drawings, the single figure is a schematic, side elevational view of one embodiment of the apparatus of the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
As seen in the single figure, the apparatus 10 comprises a base 12 upon which are mounted two horizontally-spaced apart tables 14, 16. Table 14 supports a sliding stage 18 upon which is mounted a clamp 20. Sliding stage 18 is resiliently secured tv the base 22 of a micropositioner 24 so that it is always tending to move towards its maximum upstream position.
Sliding stage 18 includes horizontal base 18a and a vertical abutment 18b. Any clamps presently used in the prior art and as described above may be used.
This clamp 20 is designed to clamp the ferrule to which the optical fibre ribbon is attached.
The second table 16 is provided with a clamp 26 (which may be the same or different from clamp 20 and a cleaver within a cleaver block 28. The cleaver may be any one of the mechanical cleavers of the prior art as discussed herein above. Cleaver block 24a also provided with an axle 30 support a free-wheeling pulley 32.
An essential part of the present invention is the sliding stage 18 (previously described) in combination with the micropositioner 24 whose base 22 has already been described.
The base 22 of the micropositional includes a fixed horizontal portion 22a and an upright guide portion 22b. The micropositioner 24 includes a fixed body 24a which is secured to the upright guide portion 22b and a manually or mechanically movable pushing nose 24b.
Also secured to the upright guide portion 22b is the body 34 of a depth gauge, preferably a digital depth gauge, 36. The depth gauge 36 includes a resiliently-movable nose 38.
USE OF THE INVENTION
In use, an optical fibre ribbon 50 consisting of two optical fibres is provided with a ferrule component 52, which is clamped to the sliding stage 18 by means of clamp 20.
The optical fibre ribbon 50 is secured to a weight 54, depending downwardly from pulley 32 to apply tension to the optical fibre ribbon 50.
The optical fibre ribbon 40 is manually signaled into its two optical fibres, and one such fibre is cleaved by the cleaver 34, Then the micropositioner 24 is actuated to move the sliding stage 18 forwardly by an amount or from 1 to 10 Vim, which amount is measured by depth gauge 36.
Then the uncleaved optical fibre is cleaved by the cleaver 34 to a length which is from 1 to 10 ~m longer than the first cleaved optical fibre.
CONCLUSION
From the foregoing description, one skilled in the art can easily ascertain the essential characteristics of this invention, and without departing from the spirit and scope thereof, can make various changes and modifications of the invention to adapt it to various usages and conditions. Consequently, such changes and modifications are properly, equitably, and "intended" to be, within the full range of equivalence of the following claims.
Patent number 2 discloses friction producing clamp for holding separate sections of the optical fibre rod. These are provided by a fixed clamp and a movable clamp. The clamps are configured to exert and upward force on the optical fibre rod.
Patent number 3 discloses at least three clamps, with two adjacent clamps being configured to clamp above portion of the optical fibre and the remaining clamp being configured to clamp a sheathed portion of the optical fibre.
Patent number 4 disclosed resilient clamps. The clamps are configured to clamp the main portion of the optical fibre and the waste portion of the optical fibre.
Patent number 5 discloses means for gripping the fibre and means for gripping the ferrule including a ferrule holder having a moderation for receiving half of the ferrule.
Patent number 6 discloses a clamp for gripping an optical fibre. The clamp includes a mounting block and primary and secondary movable clamping gates, together with latches to hold the gates and their closed positions.
Patent number 7 provides a holder to hold an optical fibre, which includes a guide holder to receive and hold the optical fibre.
Patent number 8 discloses a device which includes a support having two lower pads aligned with two upper pads on a hinged cover so that optical fibres may be clamped between respective pairs of lower and upper pads.
Patent number 9 discloses a device including C chuck block having a just holding mean for holding an optical fibre within the chuck during scribing the cleaving, on fibre connector block for holding the optical fibre during scribing and cleaving.
Patent number 10 discloses a tool which includes a body having a cavity for receiving the ferrule of the connector and a floor which contacts the end face of the ferrule when the ferrules fully inserted into the cavity.
Patent number I I discloses a device including first and second pair of optical fibre clamps separated by a just predetermined distance as well as another pair of optical fibre clamp at a predetermined distance apart.
The prior art also discloses various principles for cleaving the optical fibre. One such principal as described in Patent number 11 and in Patent number 2. According to such principles a decreasing tensile stress is established across the cross-section of the rod which, at all points, is greater than zero but less than the threshold stress at which a mist zone forms. This may conveniently be achieved by simultaneously applying a longitudinal tension to the rod and bending it.
Another principle is disclosed in Patent number 3. According to that principle a scoring blade scores the optical fibre perpendicular to the optical fibre. There a pushing member applies a stress to the fibre from the opposite side of the score to cut the fibre.
Another application of that principle is disclosed in Patent number 4. In that patent a manual cleaver having two jaws includes a blade on an upper jaw which applies a force to the optical fibre to produce a score of the desired depth. There a further closure of the jaw applies longitudinal tensions to the fibre C produce cleaving.
Yet another application of that principle is disclosed in Patent number 5. In that patent, a score is formed and means are provided for providing both tensile and shearing forces to the fibre at or near the scoring point to break the fibre.
Yet another application of that principle is disclosed in Patent number 8. In that patent a plurality of optical fibres are simultaneously cleaved at the same position, which differs from the other patents where a single fibre is cleaved.
AIMS OF THE INVENTION
However, no prior art device has been provided which can cleave multiple fibres wherein the cleaved fibres are of slightly different lengths.
Accordingly, the present invention has for its principal object the provision of an apparatus in which the optical fibre ribbon can be cleaved, wherein the individual optical fibres have slightly different lengths.
The present invention has for another of its objects a method for cleaving optical fibres, wherein the cleaved optical fibres have slightly different lengths.
STATEMENT OF INVENTION
The present invention provides a system and a method to achieve the above aims.
The present invention thus provides a system for cleaving individual optical fibres in an optical fibre ribbon at two different lengths. The system includes a base supporting two horizontally-spaced apart tables. An upstream one of the two horizontally-spaced apart tables includes a support member secured thereto, since support member supporting a stage which is resiliently passes and slidable horizontally with respect to said support member a micropositioner including a nose which is horizontally movable into contact with said stage to more said stage against said resilient bias and a gauge including a nose which a resiliently horizontally moveable in contact with said stage. A downstream one of the horizontally spaced apart tables includes a cleaver support secured thereto, the cleaver support including a cleaver, a clamp secured thereto, and an optical fibre tensioning member.
The present invention also provides a method for cleaving optical fibres in an optical fibre ribbon at accurately predetermined different lengths. The method comprises clamping the female of said optical fibre ribbon to a fixed structure, applying a tensile force to the optical fibre, manually separating the individual optical fibre of the optical fibre ribbon, scribing and cleaving one of the said individual optical fibre while the said optical fibre or subjected to said tensile force, moving the said optical fibre ribbon having one uncleaved optical fibre a predetermined distance from the cleaved end of the cleaver fibre; and scribing and cleaving the uncleaved optical fibre while the said optical fibre is under tensile force.
OTHER FEATURES OF THE INVENTION
One feature of the system of this invention provides a support member which includes a horizontal portion which is secured to the upstream table, and an upstanding horizontal portion.
A second feature of the system of this invention provides a system wherein the stage includes a horizontal portion which is resiliently-slidably movable with respect to the said support member, and a horizontal portion supporting the horizontally-movable nose or the micropositioner and the resiliently-horizontally-movable nose on the depth gauge.
A specific feature of the system of this invention is a system wherein the depth gauge is a digital depth gauge.
Another feature of the system of this invention is a system wherein the optical fibre ribbon tensioning member comprises a pulley, which is free-wheelingly mounted to the downstream end of the cleaver support end, which is configured to support a weight which may be secured to one end of the optical fibre ribbon.
One feature of the method of this invention is one wherein the tensile force is applied to the optical fibre ribbon by means of a weight which is attached to an end of the optical fibre ribbon.
Another feature of the method of this invention is one wherein the predetermined fixed distance is from 1 to 10 Vim.
BRIEF DESCRIPTION OF THE DRAWirIGS
In the accompanying drawings, the single figure is a schematic, side elevational view of one embodiment of the apparatus of the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
As seen in the single figure, the apparatus 10 comprises a base 12 upon which are mounted two horizontally-spaced apart tables 14, 16. Table 14 supports a sliding stage 18 upon which is mounted a clamp 20. Sliding stage 18 is resiliently secured tv the base 22 of a micropositioner 24 so that it is always tending to move towards its maximum upstream position.
Sliding stage 18 includes horizontal base 18a and a vertical abutment 18b. Any clamps presently used in the prior art and as described above may be used.
This clamp 20 is designed to clamp the ferrule to which the optical fibre ribbon is attached.
The second table 16 is provided with a clamp 26 (which may be the same or different from clamp 20 and a cleaver within a cleaver block 28. The cleaver may be any one of the mechanical cleavers of the prior art as discussed herein above. Cleaver block 24a also provided with an axle 30 support a free-wheeling pulley 32.
An essential part of the present invention is the sliding stage 18 (previously described) in combination with the micropositioner 24 whose base 22 has already been described.
The base 22 of the micropositional includes a fixed horizontal portion 22a and an upright guide portion 22b. The micropositioner 24 includes a fixed body 24a which is secured to the upright guide portion 22b and a manually or mechanically movable pushing nose 24b.
Also secured to the upright guide portion 22b is the body 34 of a depth gauge, preferably a digital depth gauge, 36. The depth gauge 36 includes a resiliently-movable nose 38.
USE OF THE INVENTION
In use, an optical fibre ribbon 50 consisting of two optical fibres is provided with a ferrule component 52, which is clamped to the sliding stage 18 by means of clamp 20.
The optical fibre ribbon 50 is secured to a weight 54, depending downwardly from pulley 32 to apply tension to the optical fibre ribbon 50.
The optical fibre ribbon 40 is manually signaled into its two optical fibres, and one such fibre is cleaved by the cleaver 34, Then the micropositioner 24 is actuated to move the sliding stage 18 forwardly by an amount or from 1 to 10 Vim, which amount is measured by depth gauge 36.
Then the uncleaved optical fibre is cleaved by the cleaver 34 to a length which is from 1 to 10 ~m longer than the first cleaved optical fibre.
CONCLUSION
From the foregoing description, one skilled in the art can easily ascertain the essential characteristics of this invention, and without departing from the spirit and scope thereof, can make various changes and modifications of the invention to adapt it to various usages and conditions. Consequently, such changes and modifications are properly, equitably, and "intended" to be, within the full range of equivalence of the following claims.
Claims (8)
1. A system for cleaving individual optical fibres in an optical fibre ribbon at two different lengths, comprising:
a base supporting two horizontally-spaced apart tables;
an upstream one of said two horizontally-spaced apart tables including a support member secured thereto, said support member supporting:
a stage, which is resiliently passed and slidable horizontally with respect to said support member;
a micropositioner, said micropositioner including a nose which is horizontally-movable into contact with the stage to move said stage against said resilient bias;
and a gauge including a nose which is resiliently horizontally movable into contact with said stage; and a downstream one of said two horizontally-spaced apart tables including a cleaver support secured thereto, said cleaver support including:
a cleaver;
a clamp secured thereto; and an optical fibre tensioning member.
a base supporting two horizontally-spaced apart tables;
an upstream one of said two horizontally-spaced apart tables including a support member secured thereto, said support member supporting:
a stage, which is resiliently passed and slidable horizontally with respect to said support member;
a micropositioner, said micropositioner including a nose which is horizontally-movable into contact with the stage to move said stage against said resilient bias;
and a gauge including a nose which is resiliently horizontally movable into contact with said stage; and a downstream one of said two horizontally-spaced apart tables including a cleaver support secured thereto, said cleaver support including:
a cleaver;
a clamp secured thereto; and an optical fibre tensioning member.
2. The system as claimed in claim 1, wherein said support member includes a horizontal portion which is secured to said upstream tables, and an upstanding horizontal portion.
3. The system as claimed in claim 1 or claim 2, wherein said stage includes a horizontal portion which is resiliently slidably movable with respect to said support member, and a horizontal portion supporting said horizontally-movable nose or said micropositioner and said resiliently horizontally-movable nose on said depth gauge.
4. The system as claimed in any one of claims 1 to 3 wherein said depth gauge is a digital depth gauge.
5. The system as claimed in any one of claims 1 to 4, wherein said optical fibre tensioning member comprises a pulley, which is free-wheelingly mounted to the downstream end of said cleaver support, and being configured to support a weight which may be secured to an end of the second optical fibre ribbon.
6. A method for cleaving optical fibre and an optical fibre ribbon at accurately predetermined different lengths, which method comprises:
a. clamping the ferrule of said optical fibre ribbon to a fixed structure;
b. applying a tensile force to said optical fibre;
c. manually separating the individual optical fibre of said optical fibre ribbon.
d. scribing and cleaving one said individual optical fibre while said optical fibre or subjected to said tensile force;
e. moving said optical fibre ribbon having one uncleaved optical fibre a predetermined distance from the cleaved end of the cleaved fibre; and f. scribing and cleaving said uncleaved optical fibre while said optical fibre is under tensile force.
a. clamping the ferrule of said optical fibre ribbon to a fixed structure;
b. applying a tensile force to said optical fibre;
c. manually separating the individual optical fibre of said optical fibre ribbon.
d. scribing and cleaving one said individual optical fibre while said optical fibre or subjected to said tensile force;
e. moving said optical fibre ribbon having one uncleaved optical fibre a predetermined distance from the cleaved end of the cleaved fibre; and f. scribing and cleaving said uncleaved optical fibre while said optical fibre is under tensile force.
7. The method of claim 6 wherein said tensile force is applied to said optical fibre ribbon by means of a weight attached to an end of said optical fibre ribbon.
8. The method of claim 6 or claim 7 wherein said predetermined fixed distance is from 1 to µm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2351882 CA2351882A1 (en) | 2001-06-28 | 2001-06-28 | Optical fibre ribbon cleaver and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2351882 CA2351882A1 (en) | 2001-06-28 | 2001-06-28 | Optical fibre ribbon cleaver and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2351882A1 true CA2351882A1 (en) | 2002-12-28 |
Family
ID=4169367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2351882 Abandoned CA2351882A1 (en) | 2001-06-28 | 2001-06-28 | Optical fibre ribbon cleaver and method |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2351882A1 (en) |
-
2001
- 2001-06-28 CA CA 2351882 patent/CA2351882A1/en not_active Abandoned
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| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |