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    • 65. 发明授权
    • Isolation valve with extended seal life
    • 隔离阀具有延长的密封寿命
    • US6056267A
    • 2000-05-02
    • US81417
    • 1998-05-19
    • Gerhard Schneider
    • Gerhard Schneider
    • F16K3/18
    • F16K3/184
    • A gate valve assembly having a primary and secondary seating surface for preventing process fluids from contacting the seals of the valve is provided. Additionally, a purge gas inlet can be disposed in the valve body to prevent process gases from contacting the seals during operation. Still further, a primary and secondary barrier seal may be provided to prevent process gases from contacting the primary seal. Additionally, a purge gas inlet can be disposed between the primary and secondary seals to further prevent process gases from contacting the primary seal.
    • 提供一种闸阀组件,其具有用于防止工艺流体接触阀的密封件的初级和次级阀座表面。 此外,清洗气体入口可以设置在阀体中,以防止工艺气体在操作期间接触密封件。 此外,可以提供初级和次级隔离密封件以防止工艺气体接触初级密封件。 此外,吹扫气体入口可以设置在主密封件和次密封件之间,以进一步防止工艺气体接触主密封件。
    • 66. 发明授权
    • Facility for tying a door intercommunication system with a video camera
to an integrated services digital network
    • 将带有摄像机的门互通系统与综合业务数字网络相连的设施
    • US6049598A
    • 2000-04-11
    • US919833
    • 1997-08-28
    • Wolfgang PetersGerhard Schneider
    • Wolfgang PetersGerhard Schneider
    • H04M11/02H04N7/14H04M11/00
    • H04N7/148H04M11/025
    • A telephone system with a video camera is connected to an integrated services digital network (ISDN) via a facility (EIN). To that end, the facility (EIN), for example, comprises an audio unit (AUD1) for coupling the audio signals from the door intercommunication system to the digital network (ISDN), a video unit (VID1) for coupling the video signals from the video camera to the digital network (ISDN), a control unit (CTRL) for transmitting a request signal to establish a switched connection for transmitting the video and audio signals via the digital network (ISDN) in case of an activation of the door intercommunication system, and to receive control signals and transmit the control signals without breaking the switched connection to at least one remotely controllable unit (UNIT) and to an ISDN video telephone with programmed call forwarding. From his ISDN video telephone the occupant of an apartment is able to identify a visitor to his apartment through a video image and to activate the door opener by means of control signals without breaking the switched connection, and switch over to a second video camera and a second intercom station inside the apartment, and in this way check on the visitor even after he has entered the apartment, or communicate with him via the ISDN video telephone.
    • 具有摄像机的电话系统通过设施(EIN)连接到综合业务数字网络(ISDN)。 为此,设施(EIN)例如包括用于将来自门互通系统的音频信号耦合到数字网络(ISDN)的音频单元(AUD1),用于将视频信号 摄像机到数字网络(ISDN),控制单元(CTRL),用于在激活门互通的情况下发送请求信号以建立用于经由数字网络(ISDN)发送视频和音频信号的交换连接 系统,并且接收控制信号并发送控制信号,而不断开与至少一个远程可控单元(UNIT)的交换连接以及具有编程呼叫转移的ISDN视频电话。 在他的ISDN视频电话中,公寓的乘客能够通过视频图像识别他的公寓的访问者,并且通过控制信号来启动开门器,而不会断开切换的连接,并且切换到第二摄像机和 公寓内的第二个对讲站,即使进入公寓后也可以访问访问者,或通过ISDN视频电话与他进行通信。