# US 2013/0156388 A1 · Optical cable connection casing adapted for operation of guiding and connecting optical cable to branching halfway > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0156388 A1 - Document ID: US20130156388A1 - Status: Published application - Kind: A1 - Application number: 13/807,586 - Filed: 2010-07-02 - Published: 2013-06-20 - Earliest claimed: 2010-07-02 - Assignees: Yu-Fen CHI - Inventors: Chih-Kuang Hsing - Web page: https://patentgrep.com/patent/US20130156388A1 ## CPC - G02B 6/4444: {Seals} - G02B 6/2558: {Reinforcement of splice joint} - G02B 6/44384: {the means comprising water blocking or hydrophobic materials (G02B6/4439, G02B6/4479 take precedence)} - G02B 6/44785: {Cable clamps} - H02G 15/013: Sealing means for cable inlets (inlets for cables filled with, or surrounded by, gas or oil H02G15/32) - H02G 15/115: Boxes split perpendicularly to main cable direction - G02B 6/4476: {with heat-shrinkable elements} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES ## Abstract An optical cable connection casing includes at least one cable in-out end surface on which at least one connection part and at least one first hollow tubular column are located. The connection part and the first hollow tubular column allow the optical cable to pass in and out the connection casing through the connection part and the first hollow tubular column in the form of double optical cables after the optical cable being oppositely bent without cutting off the optical fiber core of the optical cable, respectively; wherein the optical cable will be guided and connected to a branching halfway. ## Claims ### Claim at position 1 -17. (canceled) ### Claim 18 A cable splice enclosure for branch splicing operation of a backbone cable, comprising: at least one cable entry board; at least one connection part configured on the cable entry board and having a fixing element configured to fix a mechanical waterproof component with the cable entry board to waterproof a connection between the backbone cable and an external side of the cable splice enclosure; and at least one first hollow cylindrical tube formed on the connection part and configured to waterproof the connection between the backbone cable and the external side of the cable splice enclosure with one of a heat-shrink tube and a flexible shrinkable tube. ### Claim 19 (depends on 18) The cable splice enclosure as claimed in claim 18, wherein the backbone cable has a first segment extending through the connection part to form a U-turn in the cable splice enclosure and a second segment extending through the connection part out of the cable splice enclosure. ### Claim 20 (depends on 19) The cable splice enclosure as claimed in claim 19, further comprising at least one of a heat-shrink tube and a flexible shrinkable tube, each of which has one end waterproofing the connection part, and a second end waterproofing the first and the second segments at the external side of the cable splice enclosure. ### Claim 21 (depends on 20) The cable splice enclosure as claimed in claim 20, further comprising at least one mechanical waterproof component configured on the connection part to form a first waterproof structure thereon and fixing the first and the second segments to form a second waterproof structure thereon. ### Claim 22 (depends on 21) The cable splice enclosure as claimed in claim 21, wherein the first and the second segments have a fixing area, and the mechanical waterproof component comprises a pair of fixtures each of which has an inside portion, plural fixing screws for fixing the pair of fixtures, one of a waterproof glue having characteristics of adhesion and plasticity and an adhesive material to be disposed on the fixtures and the fixing area to form the second waterproof structure, and an elastic waterproof pad disposed on the connection part to form the first waterproof structure. ### Claim 23 (depends on 20) The cable splice enclosure as claimed in claim 20, wherein the connection part and the first hollow cylindrical tube form a connection being waterproofed by the second end. ### Claim 24 (depends on 23) The cable splice enclosure as claimed in claim 23, further comprising at least one branching clip urging the second end between the first and the second segments downward until the second end has a middle portion rested on a top of the first hollow cylindrical tube, wherein the heat-shrink tube wraps an exterior of the first hollow cylindrical tube after shrunk by heating and a part of the first and the second segments to form a third waterproof structure. ### Claim 25 (depends on 23) The cable splice enclosure as claimed in claim 23, further comprising at least one waterproofing auxiliary device, which fixes the first and the second segments and cooperates with the flexible shrinkable tube and the first hollow tube having an external end to form a fourth waterproof structure, wherein the flexible shrinkable tube wraps an exterior of the first hollow cylindrical tube and the waterproofing auxiliary device protruding from the external end to form a fifth waterproof structure. ### Claim 26 (depends on 25) The cable splice enclosure as claimed in claim 25, wherein the first and the second segments have a fixing area, the waterproofing auxiliary device comprises a pair of fixtures, each of which has an inside portion, plural fixing screws for fixing the pair of fixtures, and one of a waterproof glue having characteristics of adhesion and plasticity and an adhesive material to be disposed on the fixtures and the fixing area to fix the first and the second segments so as to form the fifth waterproof structure. ### Claim 27 (depends on 23) The cable splice enclosure as claimed in claim 23, wherein the cable entry board has at least one second hollow cylindrical tube, through which the first and the second segments pass the optical fiber cable enclosure. ### Claim 28 (depends on 27) The cable splice enclosure as claimed in claim 27, wherein the one of flexible shrinkable tube and the heat-shrink tube wraps an exterior of the second hollow cylindrical tube and a portion of the first and the second segments to form a sixth waterproof structure. ### Claim 29 (depends on 23) The cable splice enclosure as claimed in claim 23, further comprising at least one first fixture device therein, wherein the backbone cable includes an optical fiber core wire forming the U-turn, and the at least one fixture device is one selected from a group consisting of a ring fastener, a band fastener, a clamp joint and a combination thereof, and fixes the optical fiber core wire thereon. ### Claim 30 (depends on 29) The cable splice enclosure as claimed in claim 29, further comprising therein at least one brace having an optical fiber collection disk, wherein the first hollow cylindrical tube is located on the connection part at a position without the possibility of causing the backbone cable being blocked and interfered by the optical fiber collection disk while the backbone cable passes the cable splice enclosure via the first hollow cylindrical tube along the axis thereof. ### Claim 31 (depends on 30) The cable splice enclosure as claimed in claim 30, wherein the at least one cable entry board mounts thereon at least one second hollow cylindrical tube, and the second hollow cylindrical tube is located on the connection part at a position without the possibility of causing the backbone cable being blocked and interfered by the optical fiber collection disk while the backbone cable passes the cable splice enclosure via the second hollow cylindrical tube along the axis thereof. ### Claim 32 (depends on 31) The cable splice enclosure as claimed in claim 31, further comprising therein at least one second fixture device for fixing the at least one brace, wherein the second fixture device matches with the at least one cable entry board to provide a first position for the backbone cable to pass the cable splice enclosure via the second hollow cylindrical tube along the axis thereof so as to fix the brace at a second position different from the first position. ### Claim 33 (depends on 32) The cable splice enclosure as claimed in claim 32, wherein the cable splice enclosure comprises an exterior portion and at least one third fixture device, wherein the third fixture device has at least one first fixing part having two fixing holes and two screws, and at least one second fixing part configured thereon and including a fixing component being one selected from a group consisting of a ring fastener, a band fastener, a clamp joint and a combination thereof, the first fixing part fixes the third fixing device via the two fixing holes and the two screws, the fixing component fixes the backbone cable on the exterior portion thereof, and the backbone cable extends through the first hollow cylindrical tube, has a waterproof treatment with the one of the flexible shrinkable tube and the heat-shrink tube, and is fixed to the third fixture device. ### Claim 34 (depends on 33) The cable splice enclosure as claimed in claim 33, further comprising at least one third fixture device having at least one first fixing part fixed to the cable entry board, and at least one second fixing part, wherein the backbone cable going through the cable entry board and into the cable splice enclosure is fixed to the second fixing part by one being selected from a group consisting of a screw, a mortise, a clamp joint, a ring fastener, a band fastener and a combination thereof. ### Claim 35 A cable entry board for a cable splice enclosure, comprising: a connection part having a fixing element configured to fix a mechanical waterproof component with the cable entry board to waterproof a connection between a cable and an external side of the cable splice enclosure; and a first hollow cylindrical tube formed on the connection part and configured to waterproof the connection between the cable and the external side of the cable splice enclosure. ### Claim 36 A cable splicing method for splicing a cable in a cable splice enclosure, comprising: providing a cable entry board on the cable splice enclosure; configuring on the cable entry board a connection part having a fixing element; forming a first hollow cylindrical tube on the connection part; when a mechanical waterproof component is used in a first instance to waterproof a connection between the cable and an external side of the cable splice enclosure, removing the first hollow cylindrical tube and fixing the mechanical waterproof component with the cable entry board via the fixing element; and when one of a heat-shrink tube and a flexible shrinkable tube is used in a second instance, using the one to waterproof the connection between the cable and the external side of the cable splice enclosure. ### Claim 37 (depends on 36) The cable splicing method as claimed in claim 36, wherein the cable has a first segment and a second segment in the cable splice enclosure, further comprising steps of: passing the first segment through the connection part to form a U-turn in the cable splice enclosure; and passing the second segment through the connection part out of the cable splice enclosure.