Fiber optic cable stripping and measurement apparatus

• US 6,675,458 B1
• Filed: 11/02/2001
• Issued: 01/13/2004
• Est. Priority Date: 11/02/2001
• Status: Expired due to Fees

• Current Assignee: Ciena Corporation
• Original Assignee: Ciena Corporation
• Inventors: Barnes, Reginald, Davidson, Bradley, Farjami, Ali Reza
• Primary Examiner(s): Wellington, A. L.
• Assistant Examiner(s): CADUGAN, ERICA E
• Application Number:
  US10/003,863
• Time in Patent Office: 802 Days
• Field of Search: 295/644, 295/641, 29/33.M, 29/33.K, 29/33.Q, 29/33.S, 29/33.F, 294/070.1, 294/070.5, 298/66, 298/67, 298/68, 298/69, 839/47, 81/95.1, 30/901, 30/911, 337/34, 337/37, 337/51
• US Class Current: 29/564.4
• CPC Class Codes: G02B 6/245 Removing protective coverings of light guides before coupling
• CPC Class Codes: Y10S 83/947 insulation about wire
• CPC Class Codes: Y10T 29/49764 with testing or indicating
• CPC Class Codes: Y10T 29/514 comprising means to strip insulation from wire
• CPC Class Codes: Y10T 29/5187 Wire working
• CPC Class Codes: Y10T 29/5193 Electrical connector or terminal

Abstract

A fiber optic cable stripping and measuring apparatus that includes a mounting base having a template clamp connected thereto, the template clamp securing an optical component connected to the fiber optic cable. The apparatus further includes a fiber clamp connected to mounting base for securing a first portion of the fiber optic cable. A pair of fiber take up mandrels are provided adjacent to the fiber clamp for winding excess fiber optic cable, if excess cable is desired. The apparatus also includes a fiber stripper, spaced from take up mandrels, for scoring a buffer layer of the fiber optic cable. The fiber stripper enables the buffer layer of a portion of the fiber optic cable to be removed to expose optical fiber within the fiber optic cable. The apparatus further includes a cylindrical marking mandrel spaced from the fiber stripper and having a circumference that exceeds the minimum bend radius of the fiber optic cable. The cylindrical marking mandrel has a marking groove formed on its periphery so that the exposed optical fiber of the fiber optic cable may be marked at predetermined locations.

Claims

1. A fiber optic cable stripping and measuring apparatus, comprising:

a fiber clamp for securing a first portion of the fiber optic cable;

a fiber stripper spaced from said fiber clamp for scoring a buffer layer of the fiber optic cable to enable the buffer layer of a portion of the fiber optic cable to be removed to expose an optical fiber within the fiber optic cable; and

a marking mandrel spaced from said fiber stripper and having a circumference that exceeds the minimum bend radius of the fiber optic cable, said marking mandrel having a marking groove formed on its periphery so that the exposed optical fiber of the fiber optic cable is marked at a predetermined location.

2. A fiber optic cable stripping and measuring apparatus as recited in claim 1, wherein the exposed optical fiber of the fiber optic cable may be marked at a plurality of predetermined locations.

3. A fiber optic cable stripping and measuring apparatus as recited in claim 1, wherein said marking mandrel is cylindrical.

4. A fiber optic cable stripping and measuring apparatus as recited in claim 3, wherein said marking mandrel has a circumference of approximately ten to one-hundred and fifty centimeters.

5. A fiber optic cable stripping and measuring apparatus as recited in claim 1, further comprising:

a component template clamp for receiving and retaining an optical component connected to the fiber optic cable.

6. A fiber optic cable stripping and measuring apparatus as recited in claim 5, wherein the optical component is selected from the group consisting of a light-emitting diode, a laser diode, a PIN photodiode, and an avalanche photodiode.

7. A fiber optic cable stripping and measuring apparatus as recited in claim 1, further comprising:

a take up mandrel interposed between said fiber clamp and said fiber stripper and having a circumference that exceeds the minimum bend radius of the fiber optic cable, wherein excess lengths of the fiber optic cable are wound around the circumference of said take up mandrel.

8. A fiber optic cable stripping and measuring apparatus as recited in claim 7, wherein said take up mandrel is cylindrical and has a circumference of approximately ten to one-hundred and fifty centimeters.

9. A fiber optic cable stripping and measuring apparatus as recited in claim 1, further comprising:

a first take up mandrel interposed between said fiber clamp and said fiber stripper and having a circumference that exceeds the minimum bend radius of the fiber optic cable, wherein excess lengths of the fiber optic cable may be wound around the circumference of said first take up mandrel; and

a second take up mandrel interposed between said fiber clamp and said fiber stripper and having a circumference that exceeds the minimum bend radius of the fiber optic cable, wherein excess lengths of the fiber optic cable may be wound around the circumference of said second take up mandrel.

10. A fiber optic cable stripping and measuring apparatus as recited in claim 9, wherein said second take up mandrel is cylindrical and has a circumference of approximately ten to one-hundred and fifty centimeters.

11. A fiber optic cable stripping and measuring apparatus as recited in claim 9, wherein said first take up mandrel is cylindrical and has a circumference of approximately ten to one-hundred and fifty centimeters.

12. A fiber optic cable stripping and measuring apparatus as recited in claim 1, wherein said fiber stripper includes a base portion pivotally connected to a top portion, the top and bottom portions each having a stripper blade connected thereto, each stripper blade having a notch that aligns with a corresponding notch on the other stripper blade, and the notches of the stripper blade scoring a portion of the buffer layer of the fiber optic cable to enable the buffer layer of a portion of the fiber optic cable to be removed to expose an optical fiber within the fiber optic cable.

13. A fiber optic cable stripping and measuring apparatus as recited in claim 1, wherein said marking mandrel has a pair of diametrically-opposed marking grooves.

14. A fiber optic cable stripping and measuring apparatus as recited in claim 1, wherein said marking mandrel has a plurality of diametrically-opposed marking grooves.

15. A fiber optic cable stripping and measuring apparatus as recited in claim 1, wherein said fiber clamp includes a base portion pivotally connected to a top plate portion, the base portion having a resilient pad and a magnetic pin disposed therein, the top plate portion having a resilient pad that aligns with the resilient pad of the base portion, and the magnetic force created by the magnetic pin retaining the top plate portion on the base portion and compressing the fiber optic cable between the resilient pads.

16. A method for stripping and measuring a fiber optic cable with an apparatus having a fiber clamp, a marking mandrel having a circumference that exceeds the minimum bend radius of the fiber optic cable, and a fiber stripper interposed between and spaced from the fiber clamp and the marking mandrel, comprising:

securing a first portion of the fiber optic cable with the fiber clamp;

scoring a buffer layer of the fiber optic cable with the fiber stripper;

removing a portion of the buffer layer of the fiber optic cable to expose an optical fiber within the fiber optic cable;

wrapping the exposed optical fiber around the marking mandrel; and

marking a predetermined location of the exposed optical fiber using a marking groove formed on the periphery of the marking mandrel.

17. A method for stripping and measuring a fiber optic cable as recited in claim 16, further comprising:

mounting an optical component connected to the fiber optic cable on a template clamp spaced from the fiber clamp.

18. A method for stripping and measuring a fiber optic cable as recited in claim 16, further comprising:

when excess fiber optic cable needs to be provided, prior to scoring the buffer layer of the fiber optic cable, wrapping excess fiber optic cable around a circumference of a take up mandrel interposed between the fiber clamp and the fiber stripper and having a circumference that exceeds the minimum bend radius of the fiber optic cable.