Fiber optic cable spool

• US 6,511,009 B1
• Filed: 06/09/2000
• Issued: 01/28/2003
• Est. Priority Date: 06/09/2000
• Status: Expired due to Term

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Harrison, Carl G., Mandry, Michael A.
• Primary Examiner(s): Matecki, Kathy
• Assistant Examiner(s): Schlak, Daniel K
• Application Number:
  US09/590,811
• Time in Patent Office: 963 Days
• Field of Search: 242/888.1, 242/388.5, 242/378.1, 242/378.2, 242/378.3, 242/603
• US Class Current: 242/388.5
• CPC Class Codes: B65H 2701/32 Optical fibres or optical cables
• CPC Class Codes: B65H 75/14 with two end flanges
• CPC Class Codes: G02B 6/4453 Cassettes
• CPC Class Codes: G02B 6/4457 Bobbins; Reels

Abstract

A cable storage apparatus including a spool for holding cable. The spool having an S shaped cable pathway for connecting a first circumferential cable pathway with a second circumferential cable pathway. In one embodiment, the spool includes an S shaped groove extending through the middle portion of the spool to define the S shaped cable pathway. In one embodiment, the radiuses of the arc pathways of the S shaped cable pathway are designed to meet the minimum bending requirements of the cable to be stored on the spool. In one embodiment, cable is stored in the spool by first inserting a middle portion of cable to be stored in the spool in S shaped cable pathway and then rotating the spool in a first direction. The rotation causes a first portion of the cable to be rolled in the first circumferential cable pathway and a second portion of the cable to be rolled in the second circumferential cable pathway. The spool can be utilized to store fiber optic cable. In one example, the spool is attached to a fiber optic carrier for storing excess cable held in the carrier.

Claims

1. A method for rolling up excess fiber optic cable on a spool comprising:

placing a first portion of a fiber optic cable to be rolled up in an S shaped cable pathway of the spool extending from a first circumferential pathway of the spool to a second circuit pathway of the spool;

rotating the spool in a first direction wherein the rotation wraps a second portion of the fiber optic cable located on a first side of the first portion in the first circumferential pathway and wherein the rotation wraps a third portion of the fiber optic cable located on a second side of the first portion in the second circumferential pathway.

2. The method of claim 1 further includes:

determining a general middle portion of the excess portion of the cable to be rolled up;

wherein the placing the first portion of the fiber optic cable to be rolled up further includes placing the determined general middle portion generally in the center of the S shaped cable pathway.

3. The method of claim 1 wherein:

the placing further includes placing a set of first portions of a set of fiber optic cables to be rolled up in the S shaped cable pathway;

wherein the rotation wraps a set of second portions of the set of fiber optic cables located on a first side of the set of first portions in the first circumferential pathway and wherein the rotation wraps a set of third portions of the set of fiber optic cables located on a second side of the set of first portions in the second circumferential pathway.

4. The method of claim 1 wherein the fiber optic cable is a multi-fiber ribbon cable.

5. The method of claim 1 further comprising:

attaching the spool to a fiber optic carrier after the rotation.

6. An apparatus including fiber optic cable comprising:

a carrier;

a spool attached to the carrier, the spool defining a first circumferential cable pathway, the spool defining a second circumferential cable pathway, the spool is integrally formed, the spool defining an S shaped cable pathway connecting the first circumferential cable pathway with the second circumferential cable pathway;

a plurality of fiber optic cables secured to the carrier, each cable of the plurality of cables including an excess portion wound in the spool, wherein a middle portion of the excess portion is located in an S shaped cable pathway, each excess portion further includes a second portion located on a first side of the middle portion, the second portion wound in the first circumferential cable pathway, and each excess portion further including a third portion located on a second side of the middle portion, the third portion wound in the second circumferential cable pathway.

7. The apparatus of claim 6 wherein each cable of the plurality is a multi fiber cable.

8. The apparatus of claim 6 further comprising:

a second plurality of cables secured to a tray, each of the second plurality including a fiber optically coupled via at least one splice to a fiber of a cable of the first plurality.

9. The apparatus of claim 6 further comprising:

a perfect shuffle main body having fibers extending from a first side of the perfect shuffle main body to a second side of the perfect shuffle main body;

wherein each of the first plurality of fiber optic cables includes a plurality of fibers, each fiber of the plurality of fibers of each of the first plurality of fiber optic cables is spliced to a fiber of the perfect shuffle main body at the first side of the perfect shuffle main body;

wherein each of the second plurality of fiber optic cables includes a plurality of fibers, each fiber of the plurality of fibers of each of the second plurality of fiber optic cables is spliced to a fiber of the perfect shuffle main body at the second side of the perfect shuffle main body.

10. The apparatus of claim 6 further comprising:

a housing;

a plurality of matrix cards housed in the housing;

wherein the carrier and spool are housed in the housing;

wherein a each of the cables of the first plurality of fiber optic cables complete to a matrix card of the plurality of matrix cards.