JPS5794705A - Gas-dam structure of communication cable - Google Patents

Gas-dam structure of communication cable

Info

Publication number
JPS5794705A
JPS5794705A JP17174980A JP17174980A JPS5794705A JP S5794705 A JPS5794705 A JP S5794705A JP 17174980 A JP17174980 A JP 17174980A JP 17174980 A JP17174980 A JP 17174980A JP S5794705 A JPS5794705 A JP S5794705A
Authority
JP
Japan
Prior art keywords
rubber
gas
nozzle
elastic body
core
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.)
Granted
Application number
JP17174980A
Other languages
Japanese (ja)
Other versions
JPS6148682B2 (en
Inventor
Ryosuke Kaizu
Hajime Ikeda
Masaharu Sato
Satoshi Mochizuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP17174980A priority Critical patent/JPS5794705A/en
Publication of JPS5794705A publication Critical patent/JPS5794705A/en
Publication of JPS6148682B2 publication Critical patent/JPS6148682B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4427—Pressure resistant cables, e.g. undersea cables
    • G02B6/4428—Penetrator systems in pressure-resistant devices

Abstract

PURPOSE:To obtain a dam having high reliability, by using discoidal rubber parts provided with a nozzle having a through-hole which is a little smaller than the diameter of a core, making a cable core pass through said through-hole, and airtightly connecting said rubber parts and a cylindrical sleeve connected to a cable sheath end. CONSTITUTION:As for an airtightness holding part, a rubber elastic body 12 is used, and the pressure side (the cable is filled with gas) is provided with a nozzle 12-1, therefore, not only contracting force of rubber but also a self-sealing action by gas pressure operate between a core 10 and a supporting rod 11, and the nozzle, and no gas leaks from the interface. Also, as for the space between the rubber elastic body parts 12 and an airtightness holding sleeve 14, the self-sealing action operates on an ''0'' annular projecting part 12-4 of the rubber elastic body parts, from the pressure side, by using a metallic ring 13, and a stable airtight part is obtained.
JP17174980A 1980-12-05 1980-12-05 Gas-dam structure of communication cable Granted JPS5794705A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17174980A JPS5794705A (en) 1980-12-05 1980-12-05 Gas-dam structure of communication cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17174980A JPS5794705A (en) 1980-12-05 1980-12-05 Gas-dam structure of communication cable

Publications (2)

Publication Number Publication Date
JPS5794705A true JPS5794705A (en) 1982-06-12
JPS6148682B2 JPS6148682B2 (en) 1986-10-25

Family

ID=15928973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17174980A Granted JPS5794705A (en) 1980-12-05 1980-12-05 Gas-dam structure of communication cable

Country Status (1)

Country Link
JP (1) JPS5794705A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62181908U (en) * 1986-05-09 1987-11-18
EP0463749A2 (en) * 1990-06-04 1992-01-02 BICC Public Limited Company Termination system of optical fibres

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62181908U (en) * 1986-05-09 1987-11-18
EP0463749A2 (en) * 1990-06-04 1992-01-02 BICC Public Limited Company Termination system of optical fibres

Also Published As

Publication number Publication date
JPS6148682B2 (en) 1986-10-25

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