Dry screw vaccum pump having nitrogen injection
    43.
    发明授权
    Dry screw vaccum pump having nitrogen injection 失效
    具有氮气注入的干式真空泵

    公开(公告)号:US06554593B2

    公开(公告)日:2003-04-29

    申请号:US10001018

    申请日:2001-11-02

    IPC分类号: F04C1816

    摘要: A dry vacuum pump assembly that includes a casting having an inner chamber, an inlet and an outlet communicating with the inner chamber, a pair of right and left handed screw rotors positioned in the casing, each screw rotor having a cross section formed by a Quimby curve, a circular arc, and a quasi-Archimedean spiral curve, the pair of screw rotors intermeshing with each other to pump a process gas pumped from the inlet to the outlet. The pump assembly further includes a nitrogen-supplying tube that communicates with the inner chamber at a position near the outlet in the casing, and an external pipe that connects the outlet to a scrubber or a trap which external pipe is straight and does not include a silencer.

    摘要翻译: 一种干式真空泵组件,其包括具有内室,与内室连通的入口和出口的铸件,位于壳体中的一对左右螺旋转子,每个螺杆转子具有由Quimby形成的横截面 曲线,圆弧和准阿基米德螺旋曲线,这对螺杆转子彼此啮合,以将从入口泵出的工艺气体泵送到出口。 泵组件还包括氮气供应管,其在靠近壳体出口的位置处与内室连通,以及将出口连接到洗涤器或陷阱的外部管道,该外部管道是直的,并且不包括 消声器

    Image forming apparatus using intermediate transfer medium
    44.
    发明授权
    Image forming apparatus using intermediate transfer medium 有权
    使用中间转印介质的成像装置

    公开(公告)号:US06430379B1

    公开(公告)日:2002-08-06

    申请号:US09651725

    申请日:2000-08-30

    IPC分类号: G03G1500

    摘要: An intermediate transfer type image forming apparatus is provided, in which a secondary transfer unit includes a secondary transfer member having a contact transfer member disposed in contact with at least the surface of an intermediate transfer medium, a bias applying unit for applying a transfer bias to transfer a toner image on the intermediate transfer medium through the secondary transfer member to a transfer medium and an inverse transfer bias having the opposite polarity to the transfer bias, and a bias switching unit for switching the applied bias of the bias applying unit so that the transfer bias is applied to an image transfer area on the intermediate transfer medium and the inverse transfer bias is applied to an image non-transfer area on the intermediate transfer medium. The apparatus is also equipped with a disturbing member for disturbing (scraping out, sweeping off or the like) toner adhering to the contact transfer member.

    摘要翻译: 提供了一种中间转印型图像形成装置,其中二次转印单元包括具有至少与中间转印介质的表面接触的接触转印部件的二次转印部件,用于施加转印偏压的偏压施加单元 将中间转印介质上的调色剂图像通过二次转印部件转印到转印介质和具有与转印偏压相反的极性的反转印偏压;以及偏压切换单元,用于切换偏压施加单元的施加偏压,使得 转印偏压被施加到中间转印介质上的图像转印区域,并且逆转印偏压被施加到中间转印介质上的图像非转印区域。 该装置还配备有用于扰乱(刮除,清除等)调色剂附着在接触转印构件上的扰动构件。

    Automatic watch
    46.
    发明授权
    Automatic watch 失效
    自动手表

    公开(公告)号:US5867454A

    公开(公告)日:1999-02-02

    申请号:US914254

    申请日:1997-08-19

    CPC分类号: G04B19/25 G04B33/00 G04B5/14

    摘要: An automatic watch, a complete barrel 30 is disposed on the side opposite from the dial of a main plate 22, i.e. on the front side, and has the center of rotation thereof within a first domain 310 or a fourth domain 340 of the main plate 22. An escape wheel & pinion 50, a pallet fork 60 and a balance 70 have their center of rotation within a third domain 330 or a fourth domain 340, respectively. A setting lever 120 and a yoke 130 are disposed on the front side of the main plate 22 and have their center of oscillation within the second domain 320, respectively. A yoke holder 140 holds a part of the setting lever 120 and a part of the yoke 130, respectively.

    摘要翻译: 自动表,整个筒30设置在与主板22的表盘相对的一侧,即在前侧上,并且其旋转中心在主板的第一区域310或第四区域340内 擒纵轮和小齿轮50,托盘叉60和平衡70分别具有在第三区域330或第四区域340内的旋转中心。 设置杆120和轭130设置在主板22的前侧上,并且其分别具有在第二区域320内的振荡中心。 轭架140分别保持设置杆120的一部分和轭130的一部分。

    Feeding system and feeding method for a submarine cable communication
system
    50.
    发明授权
    Feeding system and feeding method for a submarine cable communication system 失效
    海底电缆通讯系统的送料系统及送料方式

    公开(公告)号:US5334879A

    公开(公告)日:1994-08-02

    申请号:US92563

    申请日:1993-07-16

    摘要: A feeding system is provided for supplying a current to repeaters on a communication cable including a feed line for conducting a current to the repeaters. The feeding system includes a plurality of branching units provided on the communication cable and terminal stations each being connected through at least one of the repeaters to one of the branching units, and each of the terminal stations feeding a current through the feed line to the repeaters. In addition each of the plurality of branching units includes at least one switching circuit for switching to connect the at least one of the repeaters to the communication cable or to the ground, depending on the amount of current conducting through the feed line in the communication cable. Further, the current thresholds of the switching circuits in the plurality of branching units are preferably different from each other.

    摘要翻译: 提供馈电系统,用于向通信电缆的中继器提供电流,该通信电缆包括用于向中继器传导电流的馈线。 馈送系统包括设置在通信电缆上的多个分支单元和各自通过至少一个中继器连接到分支单元中的一个的终端站,并且每个终端站通过馈线馈送电流到中继器 。 此外,多个分支单元中的每一个包括至少一个开关电路,用于切换以将至少一个中继器连接到通信电缆或地面,这取决于通过通信电缆中的馈线的电流量 。 此外,多个分支单元中的开关电路的电流阈值优选地彼此不同。