Building cables which include non-halogenated plastic materials
    3.
    发明授权
    Building cables which include non-halogenated plastic materials 失效
    包括非卤化塑料材料的建筑电缆

    公开(公告)号:US4941729A

    公开(公告)日:1990-07-17

    申请号:US303172

    申请日:1989-01-27

    IPC分类号: G02B6/44 H01B7/29 H01B7/295

    摘要: A cable which may be used in buildings in concealed areas such as in plenums or in riser shafts includes a core (22) which includes at least one transmission medium which is enclosed in a non-halogenated plastic material. The core is enclosed with a jacket (28) which also is made of a non-halogenated plastic material. The non-halogenated material which encloses the transmission medium and the jacket is a plastic material selected from the group consisting of a filled polyolefin, a polyetherimide and a silicone-polyimide copolymer, and blend compositions of a polyetherimide and a silicone-polyimide copolymer. Interposed between the core and the jacket is a thermal barrier which includes a plastic film which is selected from the group consisting of a polyetherimide, a silicone-polyimide copolymer, a polyimide, and blend compositions of a polyetherimide and a silicone-polyimide copolymer.

    Plenum cables which include non-halogenated plastic materials
    4.
    发明授权
    Plenum cables which include non-halogenated plastic materials 失效
    包括非卤化塑料材料的普通电缆

    公开(公告)号:US5024506A

    公开(公告)日:1991-06-18

    申请号:US449229

    申请日:1989-12-21

    CPC分类号: H01B7/295 H01B7/29 H01B7/292

    摘要: A cable which may be used in buildings in concealed areas such as in plenums or in riser shafts includes a core (22) which includes at least one transmission medium which is enclosed with a non-halogenated plastic material. The core is enclosed with a jacket (28) which also is made of a non-halogenated plastic material. The non-halogenated plastic material of the insulation is selected from the group consisting of a polyetherimide and a silicone-polyimide copolymer, or a blend comprising the polyetherimide and the silicone-polyimide copolymer. For the jacket, the plastic material includes a silicone-polyimide copolymer.

    Building riser cable
    5.
    发明授权
    Building riser cable 失效
    建筑立管电缆

    公开(公告)号:US5001304A

    公开(公告)日:1991-03-19

    申请号:US384953

    申请日:1989-07-25

    摘要: A cable which may be used in buildings in riser shafts includes a core (22) which includes at least one transmission medium which is enclosed in a non-halogenated plastic material. The core is enclosed with a jacket (29) which also is made of a non-halogenated plastic material. The non-halogenated material which encloses the transmission medium is a plastic material selected from the group consisting of a filled polyolefin, a polyphenylene oxide, a polyetherimide and a silicone-polyimide copolymer, and blend compositions of a polyetherimide and a silicone-polyimide copolymer. For the jacket, the plastic material comprises a filled polyolefin.

    High count transmission media plenum cables which include
non-halogenated plastic materials
    6.
    发明授权
    High count transmission media plenum cables which include non-halogenated plastic materials 失效
    高数量的传输介质气室电缆,包括非卤化塑料材料

    公开(公告)号:US5202946A

    公开(公告)日:1993-04-13

    申请号:US839196

    申请日:1992-02-20

    IPC分类号: G02B6/44 H01B7/295 H01B11/06

    CPC分类号: G02B6/4436 G02B6/4415

    摘要: A cable which may be used in buildings in concealed areas such as in plenums or in riser shafts includes a core (22) which in a metallic conductor cable includes at least twenty-five transmission media each of which is enclosed with a non-halogenated plastic material. The core is enclosed with a jacket (28) which also is made of a non-halogenated plastic material. The non-halogenated plastic material of the insulation is selected from the group consisting of a polyetherimide and a silicone-polyimide copolymer, or a blend comprising the polyetherimide and the silicone-polyimide copolymer. For the jacket, the plastic material includes a blend composition of silicone-polyimide copolymer and a flame retardant and smoke suppressant system comprising titanium dioxide and zinc borate.

    Telecommunication cables
    7.
    发明授权
    Telecommunication cables 失效
    电信电缆

    公开(公告)号:US4446689A

    公开(公告)日:1984-05-08

    申请号:US462639

    申请日:1983-01-31

    IPC分类号: H01B13/04 H01B11/02 D07B3/00

    CPC分类号: H01B13/04

    摘要: A multi-unit telecommunication cable is disclosed in which the twisted wire pairs of the unit are presented adjacent the conductive cable sheath at irregularly spaced locations. The cable may be made by modulating the amplitude and/or frequency of the oscillations of the faceplate employed in twisting the wire pairs together in forming the cable units.

    摘要翻译: 公开了一种多单元通信电缆,其中该单元的双绞线对在不规则间隔的位置处邻近导电电缆护套呈现。 电缆可以通过在形成电缆单元中调制用于将线对扭绞在一起的面板的振荡的振幅和/或频率进行调制。

    Telecommunication cables and methods of manufacturing same
    9.
    发明授权
    Telecommunication cables and methods of manufacturing same 失效
    电信电缆及其制造方法

    公开(公告)号:US4423589A

    公开(公告)日:1984-01-03

    申请号:US230233

    申请日:1981-02-02

    IPC分类号: H01B13/04 D07B3/00

    CPC分类号: H01B13/04

    摘要: A multi-unit telecommunication cable is disclosed in which the twisted wire pairs of the unit are presented adjacent the conductive cable sheath at irregularly spaced locations. The cable may be made by modulating the amplitude and/or frequency of the oscillations of the faceplate employed in twisting the wire pairs together in forming the cable units.

    摘要翻译: 公开了一种多单元通信电缆,其中该单元的双绞线对在不规则间隔的位置处邻近导电电缆护套呈现。 电缆可以通过在形成电缆单元中调制用于将线对扭绞在一起的面板的振荡的振幅和/或频率进行调制。