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    • 4. 发明授权
    • Flow control valve
    • 流量控制阀
    • US06289922B1
    • 2001-09-18
    • US09593508
    • 2000-06-14
    • Yuji NakanoShigeru HasegawaHiroshi TakeyamaYasuyoshi Yamada
    • Yuji NakanoShigeru HasegawaHiroshi TakeyamaYasuyoshi Yamada
    • F16K5100
    • F16K31/0655F02M3/06Y10T137/7668
    • A flow control valve having a seating surface formed on a valve element to contact a valve seat when the valve is closed has a shape of a part of a hypothetical spherical surface having a spherical center at a center of a supporting member. Therefore, the distance from the center of the supporting member to the seating surface is kept constant, and the valve element can be seated at a periphery of the valve seat without a gap, even if the shaft is inclined. Thus, the valve leakage is reduced. The supporting member supports a shaft connected to the valve element movable in an axial direction of the shaft. The center of the supporting member is aligned with a center of the valve seat. Movement of the supporting member in a radial direction of the supporting member is prohibited. Therefore, the center of the supporting member is not displaced from the center of the valve seat in the radial direction. Accordingly, the displacement of the shaft in the radial direction can be prevented. Therefore, the valve element is certainly seated on the valve seat, and the valve leakage is prevented.
    • 具有形成在阀体上的座面的阀门阀,当阀关闭时与阀座接触的流量控制阀具有在支撑构件的中心具有球面中心的假想球面的一部分的形状。 因此,即使轴倾斜,从支撑构件的中心到座面的距离保持恒定,并且阀元件可以没有间隙而位于阀座的周边。 因此,阀泄漏减少。 支撑构件支撑连接到可在轴的轴向方向上移动的阀元件的轴。 支撑构件的中心与阀座的中心对准。 支撑构件在支撑构件的径向方向上的移动被禁止。 因此,支撑构件的中心在径向上不从阀座的中心偏移。 因此,可以防止轴在径向上的位移。 因此,阀元件确实位于阀座上,并且防止阀泄漏。
    • 8. 发明授权
    • Digital telephone set capable of being simultaneously used by a
plurality of persons by using one transmission line
    • 数字电话机能够通过使用一条传输线由多个人同时使用
    • US5182768A
    • 1993-01-26
    • US780018
    • 1991-10-21
    • Yuji NakanoFumikazu Hamatani
    • Yuji NakanoFumikazu Hamatani
    • H04M1/253H04M1/723
    • H04M1/253H04M1/723
    • In a digital telephone set connected to a digital data exchange through a transmission line, a plurality of handsets, which are mounted on a telephone body, are for converting input sounds into input analog speech signals and for converting output analog speech signals into output sounds. Connected to the handsets, a plurality of analog-to-digital converters converts the input analog speech signals into input digital speech signals. Connected to the handsets, a plurality of digital-to-analog converters converts output digital speech signals into the output analog speech signals. On the telephone body are mounted a set of dialling keys for producing a numerical signal. Connected to the dialling keys, a control device is for producing input control data in response to the numerical signal and is for producing an output control signal in response to output control data. Connected to the transmission line, the control device, the analog-to-digital converters, and the digital-to-analog converters, a multiplexing/demultiplexing circuit is for transmitting/receiving transmission/reception time division multiplexed signals to/from the digital data exchange through the transmission line. The multiplexing/demultiplexing circuit is for multiplexing the input digital speech signals and the input control data into the transmission time division multiplexed signal and for demultiplexing the reception time division multiplexed signal into the output digital speech signals and the output control data.
    • 在通过传输线连接到数字数据交换机的数字电话机中,安装在电话机上的多个手机用于将输入声音转换为输入的模拟语音信号,并将输出的模拟语音信号转换为输出声音。 多个模数转换器连接到手机,将输入的模拟语音信号转换成输入的数字语音信号。 多个数模转换器连接到手机,将输出的数字语音信号转换为输出的模拟语音信号。 在电话机上安装了一组用于产生数字信号的拨号键。 连接到拨号键,控制装置用于响应于数字信号产生输入控制数据,并且用于响应于输出控制数据产生输出控制信号。 连接到传输线,控制装置,模拟 - 数字转换器和数模转换器,复用/解复用电路用于向/从数字数据发送/接收时分多路复用信号 通过传输线交换。 复用/解复用电路用于将输入的数字语音信号和输入的控制数据复用成传输时分多路复用信号,并将接收时分多路复用的信号解复用为输出数字语音信号和输出控制数据。