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    Piston operable switch
    1.
    发明授权
    Piston operable switch 失效
    活塞可操作开关

    公开(公告)号：US4547637A

    公开(公告)日：1985-10-15

    申请号：US563570

    申请日：1983-12-20

    Applicant: Gunter Peter

    Inventor： Gunter Peter

    IPC: F15B1/24 ,  G01D5/42 ,  H01H9/02

    CPC classification number: G01D5/42 ,  F15B1/24 ,  F15B2201/21 ,  F15B2201/31 ,  F15B2201/41 ,  F15B2201/515

    Abstract: A switch operable by a piston which is movable within a piston chamber, comprises a switch housing having a longitudinal bore, a hollow housing member extending from one end of the switch housing into the longitudinal bore, a tubular switch member, and a central pin. The switch member is axially movable in the longitudinal bore between a first position remote from the housing member and a second position adjacent to housing member, and has an inner surface with transverse cross-sectional dimensions greater than those of the housing member outer surface within the longitudinal bore. The central pin is fixed to the switch member, extends within the switch member and is radially spaced from the inner surface of the switch member. A helical switch spring engages and extends between the switch member and the housing member with its first end portion received within the housing member and its opposite second end portion surrounding the pin and received within the switch member. The pin and housing member radially support the spring against bending in radial directions in all positions of the switch member. Switch elements are mounted in the switch housing for sensing the position of the switch member.

    Abstract translation: 可由可活动的活塞活塞操作的开关包括具有纵向孔的开关壳体，从开关壳体的一端延伸到纵向孔中的中空壳体构件，管状开关构件和中心销。 开关构件可以在远离壳体构件的第一位置和与壳体构件相邻的第二位置之间在纵向孔中轴向移动，并且具有内表面，该内表面的横截面尺寸大于壳体构件外表面的横截面尺寸 纵向孔。 中心销固定到开关构件上，在开关构件内延伸并且与开关构件的内表面径向间隔开。 螺旋开关弹簧在开关构件和壳体构件之间接合并延伸，其第一端部容纳在壳体构件内，并且其相对的第二端部围绕销并被接收在开关构件内。 销和壳体构件在开关构件的所有位置中沿径向方向径向地支撑弹簧以防止弯曲。 开关元件安装在开关壳体中，用于感测开关构件的位置。

    Automatic blood pressure measuring and recording system
    2.
    发明授权
    Automatic blood pressure measuring and recording system 失效
    自动血压测量记录系统

    公开(公告)号：US4178918A

    公开(公告)日：1979-12-18

    申请号：US833608

    申请日：1977-09-15

    Applicant: Lionel B. Cornwell

    Inventor： Lionel B. Cornwell

    IPC: A61B5/0225 ,  A61B5/0235 ,  G01D5/42 ,  A61B5/02

    CPC classification number: A61B5/02208 ,  A61B5/02141 ,  A61B5/0225 ,  A61B5/0235 ,  G01D5/42

    Abstract: A noninvasive blood pressure measuring and recording system includes an inflatable cuff for encircling a portion of the human body, a pump for inflating and deflating the cuff for selectively occluding an arterial vessel, a detector for detecting flow variation through the arterial vessel as cuff pressure is decreased, and a recorder for recording cuff pressure values corresponding to the detected flow variation. The pump is a reversible single stroke sleeve diaphragm pump pneumatically coupled to the cuff and provides a selected, repeatable linear rate of pressure change for accurate, repeatable measurements through an automatically controllable motor operating at a selected constant speed to actuate the pump. A speed control changes the linear rate of pressure change in response to detected flow variations to enhance accuracy of measurement of selected variations, such as those identified with the systolic and diastolic pressures. A variable volume ballast tank may be pneumatically coupled to the cuff and pump to accommodate different cuff sizes. Pressure and flow variation signals may be utilized to simply and easily provide one or more different representations or measurements of detected flow variations, including additional aural representation concurrent with the measurement process for aural diagnosis.

    Abstract translation: 无创血压测量和记录系统包括用于环绕人体的一部分的可充气袖带，用于充气和放气用于选择性闭塞动脉血管的袖带的泵，用于检测通过动脉血管的流动变化的检测器， 以及用于记录与检测到的流量变化相对应的袖带压力值的记录器。 该泵是气动联接到袖带的可逆单冲程套筒隔膜泵，并且通过以选定的恒定速度操作以启动泵的自动控制的电动机提供选择的可重复的线性速率的压力变化，用于精确，可重复的测量。 速度控制响应于检测到的流量变化来改变压力变化的线性速率，以提高所选择的变化的测量的准确性，例如用收缩压和舒张压识别的那些变化的精度。 可变体积的压载舱可以气动地联接到袖带和泵以适应不同的袖口尺寸。 压力和流量变化信号可以用于简单且容易地提供检测到的流量变化的一个或多个不同表示或测量，包括与用于听觉诊断的测量过程同时的附加听觉表示。

    Pneumatic control system and method of operating the same or the like
    3.
    发明授权
    Pneumatic control system and method of operating the same or the like 失效
    气动控制系统及其操作方法

    公开(公告)号：US3683949A

    公开(公告)日：1972-08-15

    申请号：US3683949D

    申请日：1970-10-19

    Applicant: ROBERTSHAW CONTROLS CO

    Inventor： PERKINS CHARLES H

    IPC: F15B11/10 ,  G01D5/42 ,  G05D23/185 ,  G05D23/00

    CPC classification number: G01D5/42 ,  F15B11/10 ,  G05D23/185 ,  Y10T137/2365

    Abstract: Passage defining means interconnecting a source of pneumatic fluid to a pneumatically operated control device. Flow control variable restrictor means is disposed in the passage defining means intermediate the source and the control device whereby the passage defining means has a part thereof disposed between the restrictor means and the control device. A variable vent means is interconnected to the part of the passage defining means and is responsive to pressure in that part of the passage defining means. The flow control variable restriction means tends to maintain a substantially constant pneumatic flow in the part of the passage defining means even though the pressure in the part of the passage defining means varies and/or the pressure of the pneumatic source varies.

    Abstract translation: 通道限定装置将气动流体源互连到气动操作的控制装置。 流量控制变量限制器装置设置在源和控制装置中间的通道限定装置中，由此通道限定装置的一部分设置在限流装置和控制装置之间。 可变排气装置互连到通道限定装置的一部分，并且响应于通道限定装置的该部分中的压力。 即使通道限定装置的部分中的压力变化和/或气动源的压力变化，流量控制可变限制装置趋向于在通道限定装置的部分中保持基本上恒定的气流。

    moore
    6.
    发明授权
    moore 失效

    公开(公告)号：US2371253A

    公开(公告)日：1945-03-13

    申请号：US2371253D

    IPC: G01D5/42

    CPC classification number: G01D5/42

    Flow meter bypass valve assembly
    10.
    发明授权
    Flow meter bypass valve assembly 失效
    流量计旁通阀总成

    公开(公告)号：US4498497A

    公开(公告)日：1985-02-12

    申请号：US398878

    申请日：1982-07-16

    Applicant: Lars O. Rosaen

    Inventor： Lars O. Rosaen

    IPC: G01D5/42 ,  F16K17/04

    CPC classification number: G01D5/42 ,  Y10T137/7923 ,  Y10T137/7925 ,  Y10T137/87354 ,  Y10T137/87555

    Abstract: A bypass valve assembly is disclosed for use with a fluid flow meter of the type having a housing, an inlet, an outlet, a fluid passage which fluidly connects the inlet to the outlet and a flow rate responsive member within the fluid passage. The bypass valve assembly comprises a tubular body open at one end in which is secured to the flow meter housing so that the open end of the tube registers with the flow meter inlet. A valve member is contained within the tube and is urged to a closed position by a helical spring. In its closed position, the valve member directs all of the influent to the flow meter through the passage. When the fluid flow rate into the flow meter exceeds a predetermined amount, the valve member moves to an open position against the force of the helical spring thus bypassing the influent directly to the flow meter outlet.

    Abstract translation: 公开了一种用于具有壳体，入口，出口，将入口与出口流体连接的流体通道和流体通道内的流速响应构件的流体流量计的旁通阀组件。 旁通阀组件包括在其一端开口的管状体，其中固定到流量计壳体，使得管的开口端与流量计入口配准。 阀构件容纳在管内并且被螺旋弹簧推到关闭位置。 在其关闭位置，阀构件通过通道将所有流入物引导到流量计。 当进入流量计的流体流量超过预定量时，阀构件抵抗螺旋弹簧的力移动到打开位置，从而将流入物直接绕过流量计出口。

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