Abstract: Stackable electric contact block including a casing that defines its volume, the casing having upper and lower faces for connecting the block to another component, the casing accommodating a screw for fixing the block to another component, and a press rod capable of moving from a rest position to an activation position for transferring a translation force to a component attached to the lower face of the casing, the press rod including an activation head in the form of a wedge capable of engaging with a push-button or a rotary knob, the casing including a cavity for guiding the press rod between its rest and activation positions, in which cavity the press rod is accommodated. A device for guiding the press rod into the guide cavity includes a guide tab accommodated in a matching guide slot passing through the activation head.

Abstract: An electrical switching assembly. The electrical switching assembly includes an integral handle and rotor unit including an integral rotor portion and a handle portion. The rotor portion is configured to receive one or more conductors and is configured to be received in a line base. Assembly methods for electrical switching assemblies are provided, as are other aspects.

Abstract: A human-machine dialog system including a first part including a data processing unit and an electrical power supply unit, a second part including a number of human-machine dialog members each provided with a human-machine dialog interface, and a fastening support arranged to accommodate each human-machine dialog member in a removable and interchangeable manner, and a communication and power supply bus linking the power supply unit and the processing unit of the first part to each human-machine dialog member.

Abstract: An electromagnetic relay includes a coil, an armature, an iron core, a card, a first contact, and a second contact. The card is connected to the armature and formed of an insulating material. The first contact and the second contact are in contact when there is no flow of electric current through the coil. The first contact and the second contact are separated with the armature being attracted to the iron core to interpose the card between the first contact and the second contact when there is a flow of electric current through the coil.

Abstract: A switch wire-connection terminal block structure includes a casing and at least one contact terminal. The contact terminal has a locking hole in direct communication with a receiving hole. The receiving hole communicates with a wire socket. A locking member is disposed in the receiving hole and lockable in the locking hole. A gasket member is fitted on the locking member. A guide channel is formed on inner wall of the receiving hole and extends in a locking direction of the locking member. The gasket member has a guide section extending in a direction reverse to the locking direction of the locking member. The guide section is slidably disposed in the guide channel. The receiving hole provides a larger locking travel for the locking member so that the terminal block is applicable to closed wire terminal.

Abstract: Two protrusions are disposed on the fixed contact along a lateral direction on a contacting surface. The two protrusions are disposed in a longitudinal direction with a predetermined interval on the contacting surface, and a planar portion is formed between the two protrusions. A single projection that intersects perpendicular to the two protrusions disposed on a first fixed contact and another single projection that intersects perpendicular to the two protrusions disposed on a second fixed contact are disposed on a movable contact. Thereby, when the movable contact contacts to a pair of fixed contacts, since the protrusions disposed on the fixed contact and the projections disposed on the movable contact contacts only at intersections of each other, a contacting surface pressure is increased and a crushing force for ice frozen on a surface of the fixed contact becomes large.

Abstract: An electromagnetic relay has an iron core having legs at both ends and a coil wound therearound to form an electromagnet, a movable iron piece that pivotally supports a pivoting shaft along one leg of the iron core and causes a tip of a pivoting arm extended from a side edge of the pivoting shaft toward the other leg of the iron core to face the other leg of the iron core in a contactable and separable manner, and a card whose side facing the movable iron piece is in contact with the pivoting arm of the movable iron piece. The movable iron piece that pivots based on the excitation and degaussing of the electromagnet presses the card to drive a contact mechanism.

Abstract: The present invention relates to an auxiliary contact block. The auxiliary contact block comprises a housing and a tool free latching mechanism. The tool free latching mechanism further comprising a stationary member integral to the housing and a latching bar. The latching bar comprising a button in communication with a moveable member by a central body.

Abstract: A relay, in particular for radio-frequency applications, has at least one first contact electrically connected with a first conductor trace, the first contact in a contact position can be selectively electrically connected by a mechanical actuator with at least two second contacts electrically connected with at least one second conductor trace. The relay has a spatially fixed first circuit board with the first contact and the first conductor trace and a second circuit board with the second contacts and the second conductor trace that can be moved against the first circuit board into various contact positions by the mechanical actuator.

Abstract: A pusher assembly for use in a contact block assembly is disclosed. The pusher assembly comprises a pusher (105); a window (214) extending through the pusher; a first movable contact (106) positioned within the window; and a second movable contact (107) positioned adjacent to said first movable contact within the window. A method of assembling a pusher assembly having a movable contact is also disclosed. The method comprises steps of inserting a first movable contact within a pusher; inserting a second movable contact with the pusher; and retaining the first movable contact and the second movable contact within the pusher by a spring.

Abstract: The invention relates to a contact assembly mounted on a preselector of a step switch, where the fixed preselector contact has a contacting ring that can be interconnected. The appropriate design of the contact and of the openings in an insulating material housing, in which said contact should be fixed, as well as an additional positioning part enable a simple mounting and a reliable fixing which simultaneously prevents turning.

Abstract: A configurable switch having a base and interchangeable stationary contacts positioned in adjustable locations with respect to the base. A plunger is slidably mounted with respect to the base so that the plunger moves between a first position and a second position. One or more moveable contacts are mounted in a normally open position or a normally closed position. In the first position or the second position, the moveable contacts make contact and/or break contact with the stationary contacts depending upon the respective arrangements of the stationary contacts and the moveable contacts. Thus the configuration of a four-circuit switch can be altered with a minimum of different components to be, for example, a four normally closed circuit configuration, three normally closed and one normally open circuit configuration, two normally closed and two normally open circuit configuration, etc., with a minimum of expense or retooling.

Abstract: A turn signal cancellation mechanism has an actuator and a pawl engagably interfacing therewith. In one aspect of the present invention, the pawl is disposed on an opposite side of a steering shaft from a handle interfacing segment of the actuator. In another aspect of the present invention, a unique pawl movably engages with a modified T-shaped slot within an actuator. A further aspect of the present invention provides a modularized system wherein a common housing interchangeably retains differing circuit boards, pivoting actuators coupled to handles, and various switches, depending on the specific options desired. In still another aspect of the present invention, a detent plunger has a shaft with a quadrilateral cross sectional shape along a portion thereof and an integrally formed semi-spherical cap. An improved fastening means is also employed to attach the present invention turn signal cancellation mechanism onto the steering column.

Abstract: The present invention defines a convertible electrical contact. The convertible contact comprises two pair of movable contacts attached to an actuator which is supported by and enclosed within a housing. The actuator is biased to a first position and is slidably movable to a second position in response to a force applied to the actuator. The movable contacts are attached to the distal ends of a flexible member which is supported at its approximate midpoint by the actuator. The movable contacts are also movable between a first position and a second position as the actuator is moved. A pair of contact cavities are defined by the housing such that the one contact cavity lies on each side of the actuator and the flexible member and movable contacts are contained within the cavities. The housing defines a first pair of access apertures associated with the first position of the movable contacts and a second pair of access apertures associated with the second position of the movable contacts.

Abstract: This electrical switch (1) consists of a flat spring, profiled in order to provide both a contact function and a spring function; the flat spring (1) includes a first leg (2) which can be deformed by bearing on a fixed pivot pin (3) of a support (4), and a second leg (5), which can move at the same time as the first leg deforms and whose end (5a) can assume either of two positions for contacting pins (14,15) of an electrical circuit. The switch according to the invention is less bulky than the usual switches by virtue of its flat shape, less expensive to manufacture, because it only consists of a single component, and easy to install on its support.

Abstract: An elevator limit switch is constructed of molded plastic box and lid and is readily adaptable for left side or right side use on an elevator or an elevator hoistway. The box and lid hold a one piece plastic hub which carries a mounting system for holding readily reversible electrical contacts.

Abstract: A modular electrical disconnect switch employs multi-functional component designs for minimum inventory of operating components. The switch replaces a number of switches of different ratings and sizes thereby reducing the total switch inventory requirements.

Abstract: An electrical switching device for door actuated operation especially configured for conversion between grounded and non-grounded operation is disclosed. The device includes a housing including a stationary contact and a moveable contact. The moveable contact is actuated by a door operated actuator which moveable contact makes and breaks contact with the fixed contact and completes a circuit to ground through the housing. The moveable contact and fixed contact are configured to receive and cooperate with an insulation member insertable between the two contacts and an additional contact member insertable between the insulation member and the moveable contact to convert the switch to non-grounded operation.

Abstract: A movable contact assembly comprises a movable contact arm carrying a movable contact element, an electrically insulating contact holder for holding the movable contact arm and movable between the open and closed positions, a compression spring for resiliently holding the movable contact arm relative to the contact holder, and a spring retainer disposed between the compression spring and the movable contact arm. The spring retainer has first and second sloped guiding surfaces. The movable contact arm has first and second sloped guided surfaces thereon. The sloped guide surfaces of the spring retainer serve to guide, in cooperation with the sloped guided surfaces of the movable contact arm, the movable contact arm into a predetermined proper positional relationship relative to the movable contact holder due to the spring force of the compression spring.

Abstract: An electric switching device of the type having a contact system includes two stationary contact bars and movable contact bridges for interconnecting the bars. To convert the switching device from a circuit maker to a circuit breaker, or vice versa, a control member is provided in the form of a shiftable slide having insulating projections which in one end position of the slide are displaced between one bridge and a contact bar while the other projection is out of the range of movement of the bridges, and in the other end position the other insulating projection interrupts the contact between the other bridge and the assigned contact bar.

Abstract: Disclosed is an electric switching device of the type having a contact system including two stationary contact bars and movable contact bridges for interconnecting the bars. To convert the switching device from a circuit maker to a circuit breaker, or vice versa, there is provided a control member in the form of a shiftable slide having insulating projections which in one end position of the slide are displaced between one bridge and a contact bar while the other projection is out of the range of movement of the bridges, and in the other end position the other insulating projection interrupts the contact between the other bridge and the assigned contact bar. In a modification, the converting member is in the form of a swingable arm cooperating with a slidably supported cam track which is turnable by 180.degree..

Abstract: An electro-magnetically controlled apparatus is provided having in a box an electro-magnet adapted to move an armature subjected to the force of a return spring developing an initial force, a contact holder associated with the armature and presenting side by side a plurality of pairs of housings each comprising a lower housing close to the armature, and an upper housing placed above, a plurality of mobile reversible bridge contacts, respectively placed in the respective housings and each receiving the action of a pressure spring which urges them against a cross piece separating two housings of a pair, these bridge contacts being adapted to cooperate each one with a pair of fixed reversible contacts disposed in the case so as to form one of the possible configurations of opening or closing switches placed in power or signalling circuits. The contact holder (9) comprises four pairs or superimposed housings (10.sub.U --11.sub.U, 10.sub.V --11.sub.V, 10.sub.W --11.sub.W, 10.sub.X --11.sub.X).

Abstract: A contact arrangement for electric switchgear is disclosed. The contact arrangement comprises a bifurcated offset contact bridge having two contact bridge parts, each of which is inserted into an opening in an actuating contact bridge carrier. Each contact bridge part rests on a first supporting surface of the opening. A spring retainer rests against the contact bridge and a compression spring is mounted between a second surface of the opening and the spring retainer. The spring retainer is guided in the contact bridge carrier against movement transverse to the direction of motion of the carrier. Each end of each contact bridge part is provided with a semicircular contact pad which, when the contact bridge parts are placed adjacent each other, form a bifurcated circular contact pad which engages with corresponding stationary contacts.

Abstract: A contact block for an electrical switch includes an insulating housing for a pair of spaced stationary contacts. A movable contact support carrier or stroker carries a bridging member including contacts for engagement with the stationary contacts. Biasing means positioned between the stroker and the housing normally biases the carrier in the direction of a projection carried by the stroker, the stroker being actuated by a linear or rotary operator. Both normally open and normally closec contact blocks are described.

Abstract: A convertible switch characterized by a dielectric housing comprising a contact compartment, a pair of stationary contacts at one end of the compartment, movable contacts movable between open and closed positions, a contact carrier slidably mounted in the housing and comprising a bridging contact member upon which the movable contacts are mounted, a coil spring at one end of the contact carrier for biasing the movable contacts in one of the open and closed position, and the assembly of the contact carrier and spring being reversible within the housing compartment for holding the movable contacts in the other of the open and closed positions.

Abstract: An auxiliary interlock switch for a DC contactor has a reciprocable one-piece insulating contact carrier and plural bridging contacts interchangeably mounted thereon in alternative positions to provide different desired arrangements of normally open and normally closed contact sets with the stationary contact posts. The contact carrier has a return spring compressed within a spring-receiving cavity and elongated abutment-receiving apertures registering with opposite ends of said cavity through which an abutment member, that is releasably assembled to the contact carrier, may interchangeably freely extend to permit relative movement therebetween and against which one end of the return spring reacts to resiliently bias the contact carrier against reciprocation in one direction.

Abstract: The cartridge is interchangeably structured to accommodate various servomechanisms for the switch or other operating unit therein, as well as to accommodate various electrical arrangements for the pushbutton cap which is slidably guided in the open end of the cartridge to operate the servomechanism. The cap is releasably latched to each servomechanism by a cross-biased latch mechanism which prevents the cap from being shocked out of the cartridge, but which can nevertheless be overridden by a finger pull on the cap when it is desired to remove the cap from the cartridge. When so removed, the cap is tethered to the cartridge, although the tether is releasable from the cap, and vice versa, should this become necessary or desirable.