专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS58116503A GAS DAM PART OF OPTICAL CABLE 失效
公开(公告)号：JPS58116503A
公开(公告)日：1983-07-11
申请号：JP21312781
申请日：1981-12-29
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： ISHIDA YUKINORI , SATOU MASAHARU , TAKAHASHI TAKUZOU , FUSE KENICHI , OOISHI YOSHIAKI
IPC分类号： G02B6/44
摘要： PURPOSE:To reduce the linear expansion of packing resin and to suppress the transmission loss increase of an optical fiber by removing the sheath of the optical cable and providing a gas dam part formed by packing a matted or cross glass fiber in packing resin around an exposed optical core group. CONSTITUTION:The plastic sheath 16 is removed from the optical core group 14 of the optical cable 12 and the exposed optical cores are loosened. Then, the matted or cross glass fiber 24 is cut to a 1-50mm. proper length and arranged around the optical core group 14, and the gas dam part and optical cables 16a on both its part sides are placed in a metallic mold; and dam packing resin 26 is injected embedding the glass fiber 24 and optical core group 14 and then set. The resin 26 uses self-foaming urethane resin, etc., preferably to improve impregnation to the glass fiber. Consequently, the microbending of the optical fiber due to the contraction of the dam packing resin at low temperature is prevented because the glass fiber suppresses the contraction of the resin.

2. 发明专利

JPS5860705A OPTICAL CABLE WITH GAS DAM 失效
公开(公告)号：JPS5860705A
公开(公告)日：1983-04-11
申请号：JP15867181
申请日：1981-10-07
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： ISHIDA YUKINORI , TAKAHASHI TAKUZOU , FUSE KENICHI , OOISHI YOSHIAKI
IPC分类号： H01B11/00 , G02B6/38 , G02B6/44
摘要： PURPOSE:To reduce the transmission loss in a gas dam, by mixing short fibrous or granular inorganic materials in a resin of the gas dam. CONSTITUTION:Plural optical fiber cores 12 are collected and are covered with a plastic armor 14 to form an optical cable 10, and a thermosetting resin such as an epoxy resin is charged in the core group, which is exposed by peeling the plastic armor 14 in the halfway position of the optical cable 10, across armor parts in both sides to form a gas dam 16. Short fibrous or granular inorganic materials 18 such as glass fibers or ceramic like a silicon nitride having

3. 发明专利

JPS5861509A CABLE WITH GAS DAM 失效
公开(公告)号：JPS5861509A
公开(公告)日：1983-04-12
申请号：JP15867381
申请日：1981-10-07
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： KATSUYAMA YUTAKA , KAWASE MASAAKI , SATOU MASAHARU , TAKAHASHI TAKUZOU , FUSE KENICHI , OOISHI YOSHIAKI
IPC分类号： H01B11/00

4. 发明专利

JPS56143609A GAS DAM UNIT FOR COMMUNICATION CABLE 失效
公开(公告)号：JPS56143609A
公开(公告)日：1981-11-09
申请号：JP4539580
申请日：1980-04-07
申请人： FURUKAWA ELECTRIC CO LTD
发明人： FUSE KENICHI , WATANABE TOSHIMITSU , TAKAHASHI TAKUZOU
IPC分类号： H02G15/25 , H01B11/00 , H02G15/20 , H02G15/23

5. 发明专利

JPS58149005A OPTICAL CABLE 失效
公开(公告)号：JPS58149005A
公开(公告)日：1983-09-05
申请号：JP3180782
申请日：1982-03-02
申请人： FURUKAWA ELECTRIC CO LTD
发明人： FUSE KENICHI , SHIRASAKA ARIO , TAKAHASHI TAKUZOU
IPC分类号： H01B11/00 , G02B6/44
摘要： PURPOSE:To obtain an optical cable having good flexibility by twisting FRP- clad optical fiber cores loosely to the extent of not applying contact pressure thereon except the pressure generated by the forces that the cores try to straighten. CONSTITUTION:FRP-cald optical fiber cores 4 are twisted together loosely to the extent of applying virtually no contact pressure among the adjacent cores. Since the FRP-clad optical fiber cores have large stiffness and are made spiral by twisting together, the forces that the cores tray to straighten act at all times, and the components of said forces generate pressure for bringing the cores into light contact with each other, thus the contact pressure among the cores maintaining the form of twisted wires is extremely small, but the presence of such contact pressure contributes to the prevention of unraveling even if the twisted fibers 5 are bent. If the contact pressure among the cores is small, the frictional force among the cores is small and when the wires 5 are bent, the fibers slide easily with each other and the optical fiber having good flexibility is obtained.

6. 发明专利

JPS5780216A Method of producing gas dam for communication cable with coaxial core 失效
标题翻译：生产用于具有同轴芯的通信电缆气体的方法
公开(公告)号：JPS5780216A
公开(公告)日：1982-05-19
申请号：JP15576380
申请日：1980-11-07
申请人： Furukawa Electric Co Ltd
发明人： TAKAHASHI TAKUZOU , FUSE KENICHI , OOISHI YOSHIAKI
IPC分类号： H02G15/25

7. 发明专利

JPS5882205A REINFORCED OPTICAL FIBER 失效
公开(公告)号：JPS5882205A
公开(公告)日：1983-05-17
申请号：JP18132781
申请日：1981-11-12
申请人： FURUKAWA ELECTRIC CO LTD
发明人： FUSE KENICHI , TAKAHASHI TAKUZOU , SHIRASAKA ARIO
IPC分类号： C03C25/10 , G02B6/44
摘要： PURPOSE:To obtain an optical fiber having the transmission characteristics which is not affected by the variation of temperature, by giving elongation at rupture of a specific value or more and a specific relation between the dynamic modulus and the loss modulus to a thermosetting resin of a reinforcing coating layer having a specific content of reinforcing fibers and a specific thickness. CONSTITUTION:In the reinforced optical fiber where an optical fiber 3 is covered with a reinforcing coating layer 2 having 100-2,500mu thickness which contains 60-85wt% reinforcing fibers 3 such as glass fibers and carbon fibers to a thermosetting resin 4 such as an unsaturated polyester or an epoxy resin impregnated in these fibers, >=2% elongation at rupture is given to the resin 4, and a phase angle delta(tandelta=E''/E') obtained on a basis of a dynamic modulus E' and a loss modules E'' in the dynamic viscosity test satisfies the condition of equation. As reinforcing fibers 3, long fibers are used, and short fibers may be mixed in a resin liquid and be entwined round long fibers. Reinforcing fibers 3 and the resin 4 are made adhesive to each other. Thus, the reinforced optical fiber superior in bending strength, flexibility, impact resistance, etc. is obtained.

8. 发明专利

JPS573310A METHOD OF MANUFACTURING CABLE WITH GAS DAM 失效
公开(公告)号：JPS573310A
公开(公告)日：1982-01-08
申请号：JP7624380
申请日：1980-06-06
申请人： FURUKAWA ELECTRIC CO LTD
发明人： FUSE KENICHI , TAKAHASHI TAKUZOU , WATANABE TOSHIMITSU , TACHIBANA HIDETO
IPC分类号： H01B11/00 , H01B13/00 , H02G15/20 , H02G15/25

9. 发明专利

JPS53108170A METHOD OF SHRINKING HEATTSHRINKABLE SLEEVE BY HEATING 失效
公开(公告)号：JPS53108170A
公开(公告)日：1978-09-20
申请号：JP2336277
申请日：1977-03-04
申请人： FURUKAWA ELECTRIC CO LTD
发明人： MIYAZAWA HIDEHISA , OBARA HIROICHI , TAKAHASHI TAKUZOU , TANABE ETSUO
IPC分类号： B29C51/00 , B29C63/00 , B29C63/42
摘要： PURPOSE:After a part of a heat-shrinkable sleeve is heat shrinked on a larger or smaller caliber part and the hot-melt adhesive on the sticked part is cooled. The sleeve is reheated to cover the tapered or stepped part with the heatshrinkable sleeve.

10. 发明专利

JPS5811906A CLAMPING PART OF NONMETALLIC OPTICAL CABLE INCORPORATED WITH OPTICAL FIBER CORE COATED WITH FRP 失效
公开(公告)号：JPS5811906A
公开(公告)日：1983-01-22
申请号：JP10999481
申请日：1981-07-16
申请人： FURUKAWA ELECTRIC CO LTD
发明人： SHIRASAKA ARIO , FUSE KENICHI , TAKAHASHI TAKUZOU
IPC分类号： G02B6/00 , G02B6/38 , G02B6/44
摘要： PURPOSE:To prevent optical fibers from the increment of transmission loss by adhering optical fiber cores coated with thermosetting resin reinforced by glass fiber which constitute a nonmetallic optical cable with fillers at the inside of a mold member to clamp the optical fiber cores without using a mechanical clamp. CONSTITUTION:A clamping part 10 of a nonmetallic optical cable incorporated with fiber cores coated with thermosetting resin (FRP) reinforced by glass fiber consists of a cable constituting member 14 composed of fiber cores coated with FRP and high tension fiber flux or FRP tension members and a plastic sheath 16. The clamping part 10 is fitted to the sheath of a clamping end of a nonmetallic optical cable 12 and composed of a sleeve-like mold member 20 with which the exposed part of the cable constituting member 14 is coated, fillers 20 with which the inside of the mold member 18 is filled so as to bury the cable constituting member 14 and a protective sleeve 22 expanded along the sheath 16 of the nonmetallic optical cable.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式