公开(公告)号：US3787654A

公开(公告)日：1974-01-22

申请号：US3787654D

申请日：1973-02-26

Applicant: SQUARE D CO

Inventor： RYS T

IPC: H01H1/42 ,  H01H1/50

CPC classification number: H01H1/42 ,  H01H1/50

Abstract: Two flat movable contact blades are mounted adjacent first ends thereof in spaced parallel relationship respectively on opposite sides of a flat stationary mounting blade for edgewise pivotal movement of their other end portions into and out of engagement respectively with opposite sides of a flat stationary contact blade aligned with the mounting blade. Threaded stud and nut clamping means are provided for automatically clamping the movable contact blades adjacent opposite ends respectively to the mounting blade and to the stationary contact blade after the movable contact blades reach a fully closed position. Cam means carried by the movable contact blades overcomes static friction and high magnetic forces to prevent welding of the blades in closed position upon flow of excessively high currents.

Abstract translation: 两个扁平的可动触点叶片分别以平行的平行关系安装在平坦的固定安装叶片的相对侧上，以使它们的另一个端部进入并分别与平面固定触头的相对侧对齐 与安装刀片。 提供螺纹螺母和螺母夹持装置，用于在可动触头叶片到达完全关闭位置之后，将相邻端部的可动触点刀片分别自动夹紧到安装刀片和固定触头刀片。 由可动接触片承载的凸轮装置克服静摩擦和高磁力，以防止在过大电流流动时叶片在关闭位置的焊接。

公开(公告)号：US3777084A

公开(公告)日：1973-12-04

申请号：US3777084D

申请日：1972-09-20

Applicant: SQUARE D CO

Inventor： RYS T

IPC: H01H9/22

CPC classification number: H01H9/22

Abstract: A safety switch having a reciprocable cover sealing cam member operable by a cover sealing handle and having first interlock means preventing movement of the switch blade operating handle and switch blades to ON position when the cover is open or is closed but not sealed. A second interlock means is provided preventing operation of the cover sealing handle and cam member when the cover is open, thereby preventing defeat of the first interlock means by manipulation of the cover sealing handle.

Abstract translation: 一种安全开关，其具有可往复运动的盖密封凸轮件，所述往复式盖密封凸轮件可由盖密封手柄操作并且具有第一互锁装置，以防止当盖打开或关闭但未被密封时开关刀片操作手柄和开关刀片移动到ON位置。 提供第二联锁装置，当盖打开时防止盖密封手柄和凸轮构件的操作，从而通过操纵盖密封手柄来防止第一互锁装置的失效。

公开(公告)号：US3755712A

公开(公告)日：1973-08-28

申请号：US3755712D

申请日：1972-09-07

Applicant: SQUARE D CO

Inventor： DE VINEY T ,  BRENNAN R

IPC: H02H7/08 ,  H02H7/14

CPC classification number: H02H7/0833

Abstract: In a regenerative DC motor control, a line voltage failure during regeneration ordinarily results in a fault current of sufficient magnitude to damage any conducting thyristors or their protective fuses. To prevent such damage, a gate suppression circuit operates upon occurrence of a fault to prevent further firing of thyristors. A fault protection module controls the connection of a charged capacitor across the then-conducting thyristors at a predetermined time after the fault to permit resetting of those thyristors and prevent any damage to thyristors or fuses.

Abstract translation: 在再生直流电动机控制中，再生期间的线路电压故障通常导致足够大的故障电流，以损坏任何导电晶闸管或其保护熔断器。 为了防止这种损坏，门禁抑制电路在发生故障时操作，以防止晶闸管的进一步烧制。 故障保护模块在故障之后的预定时间控制充电的电容器在导通晶闸管之间的连接，以允许复位这些晶闸管并防止对晶闸管或熔丝的任何损坏。

公开(公告)号：US3742166A

公开(公告)日：1973-06-26

申请号：US3742166D

申请日：1971-10-12

Applicant: SQUARE D CO

Inventor： SCHAEFER C

IPC: H01H35/26 ,  H01H35/34

CPC classification number: H01H35/2607

Abstract: A modular differential spring and contact assembly is adapted for mounting on a pressure sensing module in selected positions providing optimum sensitivity for different spring rates of the pressure sensing components. Independent adjustment means are provided for range spring force, differential spring force, differential pick-up, and sensitivity so that the pressure switch assembly is operative in a wide variety of pressure ranges with different pressure sensing means, range springs and contact means.

Abstract translation: 模块化差速弹簧和接触组件适于在选定位置安装在压力感测模块上，为压力感测部件的不同弹簧刚度提供最佳灵敏度。 提供独立的调节装置用于范围弹簧力，差速弹簧力，差速传感器和灵敏度，使得压力开关组件可在各种各样的压力范围内工作，具有不同的压力感测装置，范围弹簧和接触装置。

公开(公告)号：US3742121A

公开(公告)日：1973-06-26

申请号：US3742121D

申请日：1972-02-28

Applicant: SQUARE D CO

Inventor： SCHMIDT J

IPC: H02G5/00 ,  H02G5/08 ,  H02G15/08

CPC classification number: H02G5/08 ,  H02G5/007

Abstract: The flat bus bars of the tap-off section are outwardly offset in their central portions from their closely spaced relationship in the adjoining portions. Connectors having relatively wide rectangular contact plate portions are electrically connected respectively to the centra1 portions of the bus bars in a singlebolt type joint. Each connector has a relatively narrow offcenter connecting strap portion, the free end portion of which extends perpendicularly to the contact plate portion. The lengths of the perpendicularly extending free end portions of the connecting strap portions vary according to the distances of the contact plate portions from a side of the tap-off section. In a four-pole tap-off section, two connecting strap portions are disposed at the top of the tap-off section and spaced from each other longitudinally of the tap-off section, and two connecting strap portions are disposed at the bottom of the tap-off section and spaced from each other longitudinally of the tap-off section. In a double run of parallel connected feeder bus duct sections, each connector of a tap-off section is electrically connected to a pair of corresponding bus bars connected respectively in the two runs.

Abstract translation: 分接部分的扁平母线在其中心部分向外偏离其邻接部分​​的紧密间隔的关系。 具有相对宽的矩形接触板部分的连接器以单螺栓型接头分别电连接到母线的中心部分。 每个连接器具有相对窄的偏心连接带部分，其自由端部与接触板部分垂直地延伸。 连接带部分的垂直延伸的自由端部分的长度根据接触板部分从分接部分的一侧的距离而变化。 在四极分接部分中，两个连接带部分设置在分接部分的顶部并且在分接部分的纵向彼此间隔开，并且两个连接带部分设置在分离部分的底部 脱水部分，并且在分液部分的纵向彼此间隔开。 在并联连接的馈线总线管段的两个串联中，分接部分的每个连接器电连接到分别连接在两个运行中的一对相应的母线。

公开(公告)号：US3733451A

公开(公告)日：1973-05-15

申请号：US3733451D

申请日：1972-03-23

Applicant: SQUARE D CO

Inventor： KIESSLING R

IPC: H01H11/00 ,  H01H13/02 ,  H01H19/02 ,  H02B1/044 ,  H02B1/06 ,  H01H9/02

CPC classification number: H02B1/06 ,  H01H11/0006 ,  H01H13/02 ,  H01H13/023 ,  H01H19/02 ,  H02B1/044

Abstract: An electrical switch assembly having its component parts arranged so a maximum number of the common parts can be used in a flush mounted control station or a surface mounted control station with either of the control stations having rectilinearly moving or rotatable switch operators. The assembly includes components which operate on selected centers so the components may be selectively arranged to be used with two different switch covers, two different type switch actuators and with or without a pilot light. The components also are arranged so the rectilinearly movable operators may be interlocked or made to operate alternately and the rotary operator to be programmed to operate in a two or three position mode of operation.

Abstract translation: 电气开关组件具有布置成最大数量的公共部件的组件，可以在具有直线移动或可旋转开关操作器的任一个控制站的嵌入式控制站或表面安装的控制站中使用。 组件包括在选定的中心上操作的部件，因此部件可以选择性地布置成与两个不同的开关盖，两个不同类型的开关致动器一起使用，并且具有或不具有引导光。 这些组件也被布置成使得直线运动的操作者可以互锁或者使其交替操作，并且旋转操作器被编程以在两个或三个位置的操作模式下操作。

公开(公告)号：US3721864A

公开(公告)日：1973-03-20

申请号：US3721864D

申请日：1971-05-20

Applicant: SQUARE D CO

Inventor： ROZENBOOM G

IPC: H02B1/056 ,  H02B1/02

CPC classification number: H02B1/056

Abstract: An electrical panelboard having stacked elongated, flatwise aligned, flat bus bars and plug-in load-side connectors is provided with a mounting pan formed of flat, edgewise aligned extruded aluminum bars extending parallel to the bus bars in spaced relationship thereto edgewise thereof. Electric circuit breakers for use on the panelboard are provided with plug-on line terminal jaws for plugging on the bus bars and stab load terminals for plugging into the load-side connectors by movement of the circuit breakers parallel to the mounting pan toward the bus bars. Various combinations of two types of extruded bars are used to accommodate four different sizes of plug-in load-side connectors. The bars are longitudinally grooved to receive mounting screws for the plug-in load-side connectors anywhere along their length. Panelboards of various widths respectively accommodating circuit breakers of various sizes may be constructed by mounting various numbers of the grooved bars parallel to and at various distances respectively from each of a plurality of bus bar stacks.

Abstract translation: 具有堆叠的细长，平坦对齐的扁平汇流条和插入式负载侧连接器的电板具有安装盘，该安装盘由平行的沿边对齐的挤压铝棒形成，平行于汇流条与母线横向延伸。 在电路板上使用的电气断路器设有插入式线路端子爪，用于插入母线和刺穿负载端子，以便将平行于安装盘的断路器移向母线插入负载侧连接器 。 两种类型的挤压棒的各种组合用于容纳四种不同尺寸的插入式负载侧连接器。 这些杆纵向开槽，以便在其长度的任何地方接收用于插入式负载侧连接器的安装螺钉。 各种尺寸的各种宽度的断路器的面板可以通过将各种数量的带槽条分别与多个汇流条组合中的每一个平行并以各种距离分别来构造。

公开(公告)号：US3706868A

公开(公告)日：1972-12-19

申请号：US3706868D

申请日：1971-10-18

Applicant: SQUARE D CO

Inventor： RYS TADEUSZ J

IPC: H01H9/36 ,  H01H33/08

CPC classification number: H01H9/36 ,  H01H2009/347

Abstract: The arc chute includes a plurality of metal arc-splitting plates and a two-part casing formed of dielectric material and assembled with a single push-type fastener. A top portion of the casing includes a shielding and retaining portion for the metal arcsplitting plate closest to the origin of an arc.

Abstract translation: 电弧槽包括多个金属分流板和由电介质材料形成并与单个推式紧固件组装的两部分壳体。 壳体的顶部包括用于最靠近电弧原点的金属电弧分裂板的屏蔽和保持部分。

公开(公告)号：US3683301A

公开(公告)日：1972-08-08

申请号：US3683301D

申请日：1971-06-17

Applicant: SQUARE D CO

Inventor： BOLEY ROBERT D ,  MEYER CHARLES F ,  KIESSLING RUDOLF H ,  PAAPE KENNETH L

IPC: H01H5/02 ,  H03K17/292 ,  H01H43/00

CPC classification number: H03K17/292 ,  H01H5/02

Abstract: An electromagnetically operated solid state timing device having switching contacts and features which will permit the device to act as a direct replacement for an electromagnetically operated pneumatic timer. The device includes an electromagnet, a permanent magnet latch, a snap switch, solid state circuitry and accessible controls so the device may be easily programmed to actuate the snap switch an adjustable time delay after the electromagnet is energized or deenergized.

Abstract translation: 具有开关触点和特征的电磁操作固态定时装置，其允许该装置用作电磁操作气动计时器的直接替代。 该装置包括电磁体，永磁体闩锁，卡扣开关，固态电路和可访问的控制装置，因此该装置可以容易地被编程以在电磁体通电或断电之后启动卡扣开关可调节的时间延迟。

公开(公告)号：US3683140A

公开(公告)日：1972-08-08

申请号：US3683140D

申请日：1971-05-21

Applicant: SQUARE D CO CANADA LTD

Inventor： PECK RONALD G

IPC: H01H71/12 ,  H01H33/12

CPC classification number: H01H71/121

Abstract: A movable contact blade of an electric circuit breaker is connected in series with a bimetallic strip forming a part of a tripping device. An arc current shunting blade is stacked on the contact blade, insulated therefrom, and connected to a load terminal strap in shunting relationship to the bimetallic strip. An arc which occurs during interruption of a severe overload current is transferred from the contact blade to the arc current shunting blade, causing the high current to bypass the bimetallic strip.

Abstract translation: 电气断路器的可动接触片与形成跳闸装置的一部分的双金属条串联。 电弧分流刀片堆叠在接触片上，与其绝缘，并连接到与双金属条分流关系的负载端子带。 在严重过载电流中断期间发生的电弧从接触片传递到电流分流叶片，导致高电流绕过双金属条。