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200 条记录 (耗时 0.014 秒)

    Pressure switch
    31.
    发明申请
    Pressure switch 有权
    压力开关

    公开(公告)号：US20060219537A1

    公开(公告)日：2006-10-05

    申请号：US11336451

    申请日：2006-01-20

    申请人： Kaoru Nakajima

    发明人： Kaoru Nakajima

    IPC分类号： H01H35/26

    CPC分类号： H01H35/2607

    摘要： An indication displayed by a display unit included in a pressure switch is inverted and the respective setting functions of push-button switches are reversed when the operator is obliged to look at the display unit from a direction opposite a normal looking direction or when the pressure switch is installed in an inverted position. A mode setting push-button switch 113 is operated to turn the indication indicating a set pressure displayed by a display unit 116 through an angle of 180°, a function to increase the set pressure of a first push-button switch 111 is reversed and a function to decrease the set pressure of the second push-button switch 112 is reversed.

    摘要翻译： 当操作者有义务从与正常观察方向相反的方向观看显示单元时，或者当压力开关被切换时，由压力开关中包括的显示单元显示的指示被反转，并且按钮开关的各自的设置功能被反转 安装在倒立的位置。 操作模式设定按钮开关113使表示由显示单元116显示的设定压力的指示以180°的角度转动，将第一按钮开关111的设定压力增大的功能反转， 降低第二按钮开关112的设定压力的功能相反。

    System and method for air pressure electric switch pressure adjustment
    32.
    发明授权
    System and method for air pressure electric switch pressure adjustment 失效
    气压电开关压力调节系统及方法

    公开(公告)号：US07000481B2

    公开(公告)日：2006-02-21

    申请号：US10957932

    申请日：2004-10-04

    申请人： Patrick Mo ,  John Couvreur ,  Larry Miller

    发明人： Patrick Mo ,  John Couvreur ,  Larry Miller

    IPC分类号： G01L13/02

    CPC分类号： H01H35/265 ,  H01H35/2607

    摘要： A system for air pressure electric switch adjustment comprises a frame. A pressure port is mounted to the frame for connection to a source of fluid under pressure to be monitored. An actuator is movably mounted relative to the frame responsive to fluid pressure at the pressure port. A switch includes a fixed contact and a movable contact. The fixed contact is fixedly mounted relative to the frame. A differential mechanism comprising a pair of linked levers is hingedly mounted to the frame. One of the linked levers is driven by the actuator. The other lever carries the movable contact. A snap spring links the two levers so that the other lever is normally in a first position with the switch in a normal state. The other lever is toggled responsive to pivotal movement of the one lever by the snap spring to a second position with the switch in an actuated state. A switch adjustment mechanism is operatively mounted to the frame for varying the first position of the other lever relative to the one lever to vary actuation pressure.

    摘要翻译： 气压电开关调节系统包括一个框架。 压力端口安装到框架上，用于连接到要监控的压力下的流体源。 响应于压力端口处的流体压力，致动器相对于框架可移动地安装。 开关包括固定触点和可动触头。 固定触点相对于框架固定安装。 包括一对链接的杠杆的差动机构铰接地安装到框架上。 其中一个联动杆由执行器驱动。 另一个杠杆携带可动触点。 卡扣弹簧连接两个杠杆，使得另一个杠杆通常处于第一位置，开关处于正常状态。 响应于一个杠杆通过弹簧弹簧的枢转运动而将另一个杆切换到第二位置，同时开关处于致动状态。 开关调节机构可操作地安装到框架上，用于改变另一个杆相对于一个杆的第一位置以改变致动压力。

    Direct mount pressure control with a field adjustable trip point and reset point
    33.
    发明授权
    Direct mount pressure control with a field adjustable trip point and reset point 失效
    直接安装压力控制，具有现场可调跳闸点和复位点

    公开(公告)号：US5304759A

    公开(公告)日：1994-04-19

    申请号：US969861

    申请日：1992-10-15

    申请人： Robert Doherty

    发明人： Robert Doherty

    IPC分类号： H01H35/26 ,  H01H35/40

    CPC分类号： H01H35/2607 ,  H01H35/2614 ,  H01H35/2642

    摘要： A pressure control for use in applications such as refrigeration, air conditioning and ice generating machinery includes a highly accurate snap acting switch, field adjustable trip points and reset points and a reference scale. The trip point is adjusted by means of an adjustment screw, while the reset point is adjusted by changing the differential, or the difference between the trip point and reset point. The differential is adjusted by adjusting the amount of "lost motion" within the control by employing an actuator which includes a cam surface and means for changing the position of the cam surface.

    摘要翻译： 用于诸如制冷，空调和制冰机械的应用中的压力控制包括高精度的快动开关，现场可调跳闸点和复位点以及参考刻度。 通过调节螺丝调整跳闸点，同时通过更改差速器或跳闸点和复位点之间的差值来调整复位点。 通过使用包括凸轮表面的致动器和用于改变凸轮表面的位置的装置来调节控制内的“空动”的量来调节差速器。

    Thermostatically controlled switch
    34.
    发明授权
    Thermostatically controlled switch 失效
    恒温控制开关

    公开(公告)号：US5173679A

    公开(公告)日：1992-12-22

    申请号：US841592

    申请日：1992-02-25

    申请人： Mason B. Mount

    发明人： Mason B. Mount

    IPC分类号： H01H35/26 ,  H01H37/22

    CPC分类号： H01H35/2607 ,  H01H37/22

    摘要： A housing (10), (54) defines a well which holds a diaphragm assembly (12). The diaphragm assembly has a stud portion (14) that extends through an aperture in the housing and is biased into the housing by a spring (16). The stud portion defines a channel (18) which is received in a slot between arms of a calibration plate (20). Movement of the calibration plate transverse to the axis of the stud portion engages a cam surface (24) to position the diaphragm, more particularly a dielectric button (34) which engages a switch control member (50). As a fluid in a bulb (32) expands, it causes the diaphragm to expand, moving the control member (50) and one end of spring portion (48) causing contacts (46, 52) to open. The temperature or degree of diaphragm extension at which the switch contacts open is adjusted by rotating a shaft (60). As the stem is rotated, a cam follower (76) and cam (70) interact causing a dielectric actuator (64 ) to change the bias force, hence pivot point, of spring elements (44).

    摘要翻译： 壳体（10），（54）限定了一个保持隔膜组件（12）的孔。 隔膜组件具有延伸穿过壳体中的孔的螺柱部分（14）并且通过弹簧（16）偏压到壳体中。 螺柱部分限定通道（18），其被接收在校准板（20）的臂之间的狭槽中。 校准板横向于螺柱部分的轴线的运动与凸轮表面（24）接合，以定位隔膜，更具体地涉及与开关控制构件（50）接合的介电按钮（34）。 随着灯泡（32）中的流体膨胀，使得隔膜膨胀，移动控制构件（50）和使接触件（46,52）打开的弹簧部分（48）的一端。 通过旋转轴（60）来调节开关触点打开的隔膜延伸的温度或程度。 当杆旋转时，凸轮从动件（76）和凸轮（70）相互作用，使介电致动器（64）改变弹簧元件（44）的偏压力，从而改变枢转点。

    Pressure limiting switch for an instrument air circuit
    35.
    发明授权
    Pressure limiting switch for an instrument air circuit 失效
    仪表气路限压开关

    公开(公告)号：US4311892A

    公开(公告)日：1982-01-19

    申请号：US129036

    申请日：1980-03-10

    申请人： Pieter Engelander

    发明人： Pieter Engelander

    IPC分类号： H01H35/26 ,  H01H35/32

    CPC分类号： H01H35/2607

    摘要： A pressure limiting switch is provided for limiting the upper and lower limit values of the air pressure in a circuit feeding pneumatic controls. The switch has a switching arm which is pivotable at one end around a fixed axis in the switch body and adapted to actuate with its other end a microswitch closing a valve in the circuit if necessary. The air pressure is sensed by a movable element which engages the switching arm between the pivot axis and the microswitch. The switching arm is spring biased for compensating the microswitch spring. The air pressure range is adjustable through adjusting discs serving as abutments for movement of the switching arm.

    摘要翻译： 提供了限压开关，用于限制进给气动控制装置的回路中的空气压力的上限值和下限值。 开关具有开关臂，该开关臂可在一端围绕开关主体中的固定轴线枢转，并且适于致动其另一端，微动开关在必要时闭合回路中的阀。 空气压力由可移动元件感测到，该可移动元件在枢转轴线和微动开关之间接合切换臂。 开关臂被弹簧偏置以补偿微动开关弹簧。 空气压力范围可通过调节盘来调整，该盘用作开关臂运动的支座。

    Miniaturized differential pressure switch with integral contact and spring mounted on diaphragm
    36.
    发明授权
    Miniaturized differential pressure switch with integral contact and spring mounted on diaphragm 失效
    具有整体式接触的微型差压开关和透镜上安装的弹簧

    公开(公告)号：US3862387A

    公开(公告)日：1975-01-21

    申请号：US42526773

    申请日：1973-12-17

    申请人： DWYER INSTR

    发明人： PHILLIPS JAMES W ,  ZOLUDOW RICHARD S

    IPC分类号： H01H35/26 ,  H01H35/34

    CPC分类号： H01H35/2607 ,  H01H35/346

    摘要： A miniaturized differential pressure switch comprising a pair of matched housing sections and a low spring rate diaphragm of quadrilateral shape in the plane of the housing sections secured together by rivets at their corners, with the housings being recessed about on either side of the diaphragm to define high and low fluid pressure chambers of restricted depth that are adapted to be connected to differential gas pressure sources, in which the housing section that defines the low pressure chamber is equipped with electrical contacts disposed in the low pressure chamber, and the low pressure chamber has mounted in same a diaphragm plate that serves to close the switch contacts at the desired pressure differential, which diaphragm plate is equipped with a tongue acting as a range spring that is adjustable exteriorly of the housing by way of an adjusting screw that is threadedly mounted in the housing and that has its inner end journaled in an end portion of the tongue. The switch is adapted for use in connection with gas pressures of under 5 psig.

    摘要翻译： 一种微型差压开关，其包括一对匹配的壳体部分和在壳体部分的平面中的四边形形状的低弹簧速率膜片，所述壳体部分在其角部处由铆钉固定在一起，其中壳体围绕隔膜的任一侧凹陷以限定 限定深度的高，低流体压力室适于连接到差分气体压力源，其中限定低压室的壳体部分配备有设置在低压室中的电触点，低压室具有 安装在相同的隔膜板上，其用于以期望的压力差关闭开关触点，该隔膜板装备有作为范围弹簧的舌片，该限位弹簧可通过螺纹安装在壳体外部的调节螺钉调节在外壳外部 壳体，并且其内端记录在舌头的端部。 该开关适用于低于5 psig的气体压力。

    Diaphragm seal with fluid filled cavity for paddle or fluid flow responsive switch
    37.
    发明授权
    Diaphragm seal with fluid filled cavity for paddle or fluid flow responsive switch 失效
    液体密封用于流体流动响应开关的流体填充空气

    公开(公告)号：US3729604A

    公开(公告)日：1973-04-24

    申请号：US3729604D

    申请日：1971-11-19

    申请人： CATERPILLAR TRACTOR CO

    发明人： GROFF E ,  WELSH J

    IPC分类号： F01P11/18 ,  H01H35/26 ,  H01H35/40 ,  H01H9/04

    CPC分类号： H01H35/2607 ,  H01H35/40

    摘要： A flow switch, responsive to variation of fluid flow within a conduit, having an elongated member pivoted within the switch body and penetrating the fluid flow path within the conduit for make or break engagement with an electrical contact in response to fluid flow variations in the conduit. A seal is secured to the member near the pivot and overlaps a surrounding portion of the switch with a cup-shaped retainer urging the seal into engagement with the switch body. A cavity in the switch adjacent the seal is filled with fluid to reduce flexure of the seal and increase its effective life.

    摘要翻译： 响应于管道内的流体流动的变化的流量开关具有在开关主体内枢转并且穿过管道内的流体流动路径的细长构件，以响应于管道中的流体流动变化而与电接触件进行或断开接合 。 密封件固定到枢轴附近的构件上，并且与杯形保持器重叠，使得密封件与开关本体接合。 与密封件相邻的开关中的空腔填充有流体，以减少密封的挠曲并增加其有效寿命。