Abstract: A connector for connection to a substrate for mounting electronic devices. The connector includes a stack of coupling contacts pivotably disposed within a housing. Each coupling contact is generally H-shaped and defines opposing first and second spaces. The first and second spaces are aligned to form first and second receiving grooves in the stack, respectively. The connector also includes one or more mounting contacts partially disposed within the housing. Each mounting contact has a fastening structure joined to a bar section. The fastening structure is adapted for securement to the substrate and the bar section is disposed in the second receiving groove of the stack of coupling contacts.

Abstract: A double shutter shroud (5) and a flexible sheath (11) surrounding a stab (10) of an MCC unit, form a protective tunnel (30) for the stab to connect to a bus 4. A first shroud (6) mounted on the bus, includes a first gate (12). A second shroud (20) mounted on the MCC unit includes a second gate (24). When the MCC unit slides into an MCC section, a unit key (16) opens the first gate. When the stab is advanced toward the bus, a stab key (28) opens the second gate, forming a protective tunnel (30) from the flexible sheath and through the first and second shrouds. The protective tunnel protects the stab and bus from contamination, helps prevent dielectric breakdowns and short circuits between different phase busses, and protects an operator from electrical hazard of touching the bus or stab with tools or fingers.

Abstract: A connector (40) is avoided from becoming large sized by avoiding a guiding used upon fitting from becoming large. A counterpart housing (71) includes a cylindrical hood (72). A housing (41) includes a housing body (42) that can be fitted in the hood (72). The counterpart housing (71) is allowed to be angularly displaced about an axis parallel to a fitting direction of the housings (41, 71). One side of an opening edge of the hood (72) is configured as a counterpart arc portion (74) that curves in an arc shape along an angular displacement direction. One side of a front face of the housing body (42) in the fitting direction is configured as an arc portion (64) that curves in an arc shape along the angular displacement direction, and is configured capable of entering into the hood (72) by being guided by the counterpart arc portion (74).

Abstract: An electrical switching device for medium or high voltage circuits having at least a nominal contact arrangement, wherein the nominal contact arrangement includes at least a first nominal contact including a plurality of contact fingers forming a finger cage concentric with respect to a longitudinal axis, wherein the contact fingers are separated from one another by empty slots extending up to a free end of the contact fingers. The empty slots include first and second empty slots, wherein the second empty slots are shorter than the first empty slots, and wherein the contact fingers are grouped in groups, with the contact fingers of each group being separated by second empty slots and the contact fingers of adjacent groups being separated by first empty slots.

Abstract: A robot for picking one or more parts (41) randomly distributed in a bin (40), this robot comprising a moveable arm (16a, 16b), a computing device (14) connected to said robot for controlling motion of said moveable arm and a tool (24) connected to said moveable arm for picking one or more of said parts from said bin,—said robot using said picking tool by itself or another tool (96, 98) mounted on the robot or grasped by the picking tool to stir one or more of said one or more randomly distributed parts in said bin when said computing device determines that a predetermined event requiring stirring of said parts has occurred.

Abstract: A linear actuating earthing switch configuration that moves movable contacts using linear motion in a single axis. The earthing switch includes a frame with a rail on a slide wall. A sliding carriage slides on the rail in a linear direction, the sliding carriage including a plurality of movable contacts. A spring surrounding a linear shaft provides a linear expansion force between the frame and the sliding carriage when the earthing switch is in an open position.

Abstract: The invention relates to a switching arrangement with two operational settings for switching over a winding during transformer operation, wherein during the switching-over a transient current commutates from one current path to another current path. In that case fixed contacts are arranged in several horizontal planes around a rotatable switching shaft and on an insulating-material frame and have upper and lower contact fingers that can be pressed apart and with which electrical connection can be made by an electrically conductive rail as movable switching contact.

Abstract: An electrical distribution apparatus includes a fixed terminal, at least two fingers attached at respective pivot points in the apparatus, and a mechanical spring in operative communication with the at least two fingers, configured to provide tension upon separation of the at least two fingers. According to the apparatus, the at least two fingers are of a different length, length is a measure of the distance from a pivot point of a finger to an end of the finger, and the respective pivot points are each formed between the fixed terminal and each of the two fingers.

Abstract: A pressure switch device and method of forming the device is disclosed. The switch has a hinge terminal having a fixed end of a blade apparatus pivotally attached thereto, a jaw terminal adapted to receive a free end of the blade apparatus at a receiving portion, the blade apparatus having two blades fastened together and a spacer between the blades. Pairs of cams at either end of the blades rotate to engage protrusions in order to create a pressure lock. The pressure is enhanced by a spring washer. A connecting link attached one of each pair of cams, a drive link attached to the blades and connecting link, and a drive shaft cooperate to open and close the switch such that the switch may be first placed in a closed position, and then locked by further rotation of the drive shaft as the cam protrusions engage. The drive shaft is spring loaded to create torsional force which must be overcome to rotate the drive shaft in either direction.

Abstract: A contact device has a pair of flanges which extend inward in the radial direction from both ends of an annular shield, and a plurality of contact pieces which are arrayed in the circumferential direction in a space formed by the shield and the pair of flanges, the axial direction thereof being matched to the parallel direction with the axial center of the shield. Contact sections are provided on the outer peripheral surfaces at both ends of each contact piece. The contact device also has a plurality of rod-shaped elastic members disposed in the circumferential direction on the flanges, each of the elastic members being cantilever-fixed to the flange in such a manner that one end thereof is secured to an inner edge surface of the flange and the other end thereof is allowed to extend along the axial center of the shield into a space formed by the shield and the pair of flanges. The rod-shaped elastic members elastically support the contact pieces to restrict the contact pressure of the contact sections.

Abstract: An electrical contact assembly has a contact carrier formed with symmetrically opposed rows of comb-like guides, opposed rows of double-ended contact fingers mounted in the guides, a first contact piece supported by the contact carrier between the contact fingers at one end of the fingers and a second contact piece for insertion between the contact fingers at the opposite end of the fingers. For resiliently urging the fingers to contact the respective contact pieces, a pair of spring elements are attached to the contact carrier. Each spring element has a central web mounted on the carrier and opposite rows of arms extending from the web to engage opposite portions of the respective fingers.

Abstract: Compact electrical power disconnect switch modularized to provide very broad current rating and comprising reverse-loop fingers which cooperate in pairs and form flexible spring-loaded contact members. An enlongated rotatable contact member is positioned between the reverse-loop fingers and makes and breaks electrical contact with same upon being rotated. Operation is fast and positive and three-phase power can readily be accommodated. A viewing window can be provided for a rapid check of the position of the switch.

Abstract: A grounding switch device for a metal-clad switchgear is adapted to be inserted into a standard circuit breaker cell allows the bus and line conductors within the switchgear assembly to be grounded for maintenance. A plurality of fixed and selectable test ports are provided to facilitate various electrical tests. The ground switch device is disposed on a frame and contains a ground contact assembly for providing sliding contact between the ground switch device and the ground bus within the circuit breaker cell. The ground contact assembly is in electrical contact with a movable contact. The movable contact is adapted to engage a stationary contact mounted on a mounting plate, attached to the frame by way of an insulator. A selector switch assembly connects the stationary contact to either the upper bus terminals or line terminals in the metal-clad switchgear assembly. The contact portion of the movable contact is U-shaped having two spaced-apart blades.

Abstract: A contact assembly is provided for a high-voltage switch. The contact assembly includes one or more contact members that cooperate with a contact element. The arrangement of the contact members is such that an interference fit results with the contact element and one or more of the contact members are displaced. To provide operation of the contact assembly in ice-forming environments, facilities are provided to prevent the ingress of moisture and the formation of ice in the space required for displacement of the appropriate one or more contact members. Of course, if ice were allowed to occupy the space required for displacement of the one or more contact members, due to the relatively incompressible nature of ice, appropriate contact engagement would be inhibited since displacement of the one or more contact members would be unable to occur when engaged by the contact element. In a specific arrangement, the contact assembly includes a contact support structure which carries the contact members.

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: The problem of false alarms in a burglar alarm system caused by inadvertent opening of a sensing switch is resolved by providing a burglar alarm system switch with a wire brush contact surface on one switch member of a pair affixed to movable and fixed building parts. The switch parts are so constructed to mate the wire brush as one contact surface in brushing contact with the other switch member contacting surface thereby assuring good contact through any oxidized surface layers. Furthermore, when the switch members are retained in mated closed circuit condition, a significant number of the wire brush members make electric contact to establish the necessary closed conductive path to prevent the burglar alarm from sounding and to maintain it even if slight dimensional changes cause the switch members to move relative to each other.

Abstract: The invention relates to a frame for housing a withdrawable circuit breaker. The rear wall of the frame comprises an insulating support, through which fixed connection terminals pass, each comprising an internal part on which a draw-in grip is mounted. The end of the terminal is fitted with a single latching edge cooperating with a notch of conjugated shaped, arranged in the draw-in grip, onto which it clips.

Abstract: An axially reciprocatable actuation rod is conducted out of a vacuum chamber and connected with one of the terminals of a vacuum switch by a connecting conductor. In order to exploit the short switching stroke which is characteristic of vacuum switches and thereby reduce the construction expenditure for the connecting conductor, the connecting conductor is constructed as a yoke whose ends are forked. These opposed ends of the connecting conductor engage at one end thereof the actuation rod and at the other end thereof a protrusion on the terminal extending in the direction of the actuation rod. The opposed ends frictionally engage the actuation rod and the protrusion elastically at mutually opposing locations thereof.

Abstract: A compact pushbutton switch comprises a housing in which three chambers are formed and connected by a common contact member. A fixed contact, a nonconducting member forming a continuation to the fixed contact, a slider movable along both the fixed contact and the nonconducting member, a movable contact fixed to the slider, a control pushbutton mounted to the slider, and a coiled spring are mounted in each of the chambers. The spring is made of an electrically conductive material, and interposed between the common contact member and the movable contact to bias the movable contact out of contact with the fixed contact. When no control pushbuttons are depressed, each spring acts to hold the movable contact out of electrical connection with the fixed contact. When any one of the pushbuttons is depressed, the corresponding spring serves to establish an electrical connection between the corresponding movable contact and fixed contact by its electrical conductive property.

Abstract: A contact arrangement for an isolating switch used as a ground connection of a switch system includes two switch pieces which are movable relative to one another, one of which is a knife and the other is a gripper. The gripper includes two contact pieces which are located opposite and parallel to one another and which engage the knife in the cutting-in state. Each contact piece is in turn formed by a plurality of adjacent contact elements. Such a contact arrangement is simple and economical to produce, while providing reliable contact-making for both high and low currents in spite of only slight static contact pressure. This result is achieved because the contact elements are U-shaped contact lamellae. Each lamella includes first and second legs connected via a curved part, the first leg being supported on the knife in the cutting-in state and the second leg being supported on current terminals formed on the contact pieces.

Abstract: A plug-in type electric circuit breaker utilizing a detachably fastened stab assembly for interconnecting the circuit breaker to current carrying members such as bus bars. The stab assembly incorporates a plurality of opposed, independently movable spring-biased contact fingers having limited axial and arcuate motion allowing for good electrical and mechanical interconnection between misaligned circuit breakers and bus bars and reduction in the amount of force required for installation while preventing the engagement of the circuit breaker with oversized or undersized conductors.

Abstract: A multipole high voltage circuit breaker is provided with a housing formed of a pair of flanged housing shells which are snap-fitted together along adjoining peripheral flanges. The thus assembled housing is provided with a plurality of intermediate walls and end walls for defining a plurality of compartments corresponding to respective ones of the poles of the circuit breaker. A switch actuator shaft is formed of a plurality of tubular bodies which are housed in respective ones of the compartments and coupled together for joint rotation. A plurality of fixed contacts extend through the housing and are bent so as to be directed radially toward the switch actuator shaft. The arrangement further includes a plurality of switch elements arranged on the switch actuator shaft, the elements being movable between engaged and disengaged positions with respect to the fixed internal contacts upon rotation of the switch actuator shaft.

Abstract: An electric disconnect or grounding switch is disclosed. The switch comprises a switch blade movable about a fulcrum and a fixed blade contact having a central slot open at one end to define resilient side walls which form spaced fixed contacts. The switch blade in the open position of the switch is parallel or at an angle to the blade contact. During closing of the switch, the switch blade enters the central slot from the closed end thereof and moves to the region of the current contacts until it comes into contact with an insulating stop disposed underneath the blade contact. There, motion of the switch blade is stopped and the switch blade is disposed perpendicular to the blade contact in the closed position of the switch.

Abstract: A break contact arrangement is disclosed. One piece spacers provided with angled-off arms determine the mutual spacing of contact segments and guide the contact segments within a holder comprising side walls and sheet metal covers. The contact segments are spaced by the arms of the spacers. Each spacer includes a U-shaped central portion which is received in a recess of the contact segments and extensions at opposite ends which are fastened to the side walls of the holder. The contact forces are supplied by one-piece springs which have spring arms for each contact segment. The break contact arrangement is particularly well suited for pullout-type low-voltage and medium-voltage switchgear for connecting conductors of rectangular cross section.

Abstract: An electric switch having contact elements designed in the form of contact pins is disclosed. Contact pins and flat springs are arranged in units, each unit having a contact pin and an associated flat spring, and each unit extending in the make/break direction of the switch. Each contact pin-flat spring unit is held between a contact carrier and a cage. The cage may be held in place by outer ends of the flat springs. A tubular conductor or a contact blade can be used as a mating contact. The mating contact is in electrical connection with the contact pins when the switch is in the make position. The individual contact elements can be easily replaced, and a standard design contact element can be used in switches of various sizes and types. A switch according to the present invention is particularly suitable for use with large surge currents.

Abstract: A modular vault type load break switch wherein the switching assembly is carried within an oil filled vault such that the operation of the switching mechanism is independent of the vault structure. The switching contact mechanism employs a positive actuator which is energized by the operator and contact movement effected by a remotely controlled mechanism independent of operator contact.

Abstract: An enclosed multipole fuse disconnect switch is constructed of a single molded base, a single contact carrier, and an overcenter spring powered toggle mechanism constructed solely of a coiled compression spring and a stamped sheet metal tongue which extends through an aperture in the contact carrier. The tongue is formed integrally with a pivot shaft through which operating forces are applied to the toggle mechanism. Each pole includes a U-shaped bridging contact constructed of spring metal and floatingly mounted in an aperture of the contact carrier.One end of the pivot shaft extends into a slot in the enlarged end of a bearing rivet that extends through the sidewall of the switch enclosure and is keyed to a manual operating member at one end thereof. The latter extends through a guide slot in an arcuate bracket outside the enclosure.

Abstract: Presented is a high power switch for making, breaking and carrying high direct and alternating current circuits. The switch incorporates pairs of contacts that operate in sequence, one of the contact pairs being the first to "make" and the last to "break" and the other contact constituting a movable conductive bridge to carry the primary load through the switch structure.

Abstract: A contact structure characterized by a plurality of pairs of oppositely disposed contact fingers for engaging a terminal stab, biasing means comprising leaf springs at the outer sides of the contact fingers, and bracket means for holding the assembly of the contact finger and biasing means together.

Abstract: An electrical contact with a fixed conductor and a movable conductor, comprises a plurality of plate springs, a plurality of contacts, the plate springs and the contacts being mounted into a single unit with an arrangement of those members in a substantial orthogonal relation to each other. The opposite ends of each of the plate springs being supported so as to provide an arrangement of contacts spaced at a fixed interval.