Abstract: A rectangular housing has an electronics mounting frame shock mounted in it. The frame includes a plate and two angle members extending parallelly on opposite ends of the plate. A tray holding a controller electronics circuit board is suspended from the angles with knurled screws that can be hand fastened. A processor tray holds a processor circuit board. Spring-loaded plungers on one end of the processor tray attach the tray to flanges on the end of the plate distal from the controller tray. Hand-operable fasteners attach the other end of the processor tray to the angles overlying the controller tray. With these fasteners unscrewed, the processor tray may be pivoted upward, and a rod attached to one angle raised to stably support it, thus permitting access to the controller circuit. The controller tray may also be stably supported on top of the angles to provide access to a modular power supply beneath it. A rectangular frame extends the housing by one RETMA unit.

Abstract: A coil form for supporting coils of wire includes three intersecting orthogonal plates whose peripheral surfaces together define an imaginary spherical surface. The plate peripheries increase the effective winding area of the coils with respect to the exterior dimensions of the coil form. Terminal posts for the ends of the coil wires are positioned on the plates so as not to waste space and not to project beyond the imaginary sphere.

Abstract: A solenoid coil bobbin of the present invention for an electromagnetic switch which has a lead wire part of a coil being provided with projections an outer circumference walls adjacent to a pair grooves to be included the lead wire in the opening therebetween, each top end of the projections further having a swollen portion which protrudes in some length from a shape of a hall of the rigid iron core to be inserted the lead wire part therein, so that the swollen portion closes the opening of the lead wire part when inserting the lead wire part in the hall.

Abstract: An electrical connector is provided which allows simple and efficient replacement of fuses contained within an electrical connector housing. The electrical connector includes a cover plate which is mounted at an upper section of the electrical connector housing. The cover plate is formed with a pair of separators and a projection extending from a lower surface of the cover plate. The two separators may be inserted between fuses and electrical prongs when the cover plate is prepared for opening. The projection pushes the fuses into contact with the electrical prongs in a firm manner for a good electrical connection when the cover plate is completely closed.

Abstract: A multiple pole solenoid (10) having outer pole flanges 44a-44d and inner pole flanges 46a-46d magnetically act on outer armature flanges (32-35) and inner armature flanges (36-39) respectively, to move an armature (14) where an AC coil (16) and a DC coil (18) are simultaneously energized by an AC electrical source (20) and a DC electrical source (22) respectively thereby providing a high pull-in force and a high holding force with low noise.In a second embodiment, a four pole solenoid (48) is comprised of a first AC coil (62) wound on the second pole (56) and a second AC coil (64) is oppositely wound on a third pole (58) and a DC coil (66) is wound on both the second (56) and third (58) poles where the first (54) and fourth poles (60) are without coils and an armature (50) is pulled into the poles (54-60) and held in position by the simultaneous energization of both the AC coils (62,64) and the DC coil (66).

Abstract: An arc quenching, current limiting fuse utilizing a fuse link having a plurally of bends which cause the fuse link to come in contact or come in close proximity to the inside wall of the fuse body. When a short circuit and electrical arc occurs, the fuse link material burns toward the fuse wall creating an interaction with the fuse wall and an increase in pressure which extinguishes the arc.

Abstract: A protective packing element bears at its end 5 which is to be fixed on a wall opening a coupling piece which can be locked therein. The coupling piece is equipped with tongue-like locking elements and can be plugged onto a plug which itself can be plugged, for example, into an electrical plug-in connector located behind the wall opening. The locking elements have assigned to them deflection faces on the outer circumference of the plug. The plug and packing element end or coupling piece are inserted together into the wall opening. The locking elements of the coupling piece engage behind the wall opening in the course of insertion of the plug and are spread apart by the deflection faces during the further insertion of the plug. The locking elements eventually overrun the deflection faces and are secured in a spread-apart position.

Abstract: A rotary solenoid having at least one AC coil and at least one DC coil where the AC coil and the DC coil are concurrently energized by an AC electrical source and a DC electrical source, respectively for enhanced actuation torque and low noise with decreased temperature rise and package size.

Abstract: A thermal overload fuse (1) for fixation to a circuit substrate (17) comprising at least one spring arm (13) which is solderable, under fixed pre-stressed, to a contact location on the substrate, characterized in that the spring arm (13), which is fixed to an at least substantially planar frame part (2), adopts, in its relaxed state, a position which is spaced in a perpendicular direction relative to the substrate (17), in particular relative to the contact location (16); and in that the free end of the spring arm (13) is held down by at least one auxiliary web (7) onto the substrate (17), in particular onto the contact location (16); and in that the auxiliary web (7) is detachable from the frame part (2) along a predetermined line.

Abstract: An electromagnetic actuator comprises a coil associated with a magnetic circuit having a first series of polar parts to drive a rotor, and a second series of polar parts cooperating with a pivoting blade. A return spring causes movement of the blade to a separated position. A latch is rendered active to lock the blade in the separated position during rotation of the rotor, and inactive to unlock the blade enabling its electromagnetic attraction against the polar face, and stopping of the rotor. The actuator has an operating mode either as motor or as electromagnet depending on the position of the blade.

Abstract: An outlet (1) or communications cable (17), includes, an enclosure (2) defined by a base (3) and a cover (4), a cable receiving opening (8) in the base (3), multiple interchangeable plates (5) adapted for removable mounting along sides (23) of the enclosure (2), and each of the plates (5) being removable for replacement by one of the plates (5) having a connector receiving opening (6) adapted to receive a data connector (20) connected to a cable (17) received by the cable receiving opening (8).

Abstract: A surge absorber in which a thermal response switch is inserted in an input line at the input side of a surge absorbing element. The switch includes a conductive spring piece and a conductive hook piece. The base end of the conductive spring piece is fixed on either the first lead or the second leads and the tip of the conductive spring piece is provided with a pawl. The base end of the conductive hook piece is fixed on either the first lead or the second leads and the tip of the conductive hook piece is engaged with the pawl. At least one of the conductive spring piece and the conductive hook piece is made of a thermal response piece. Upon stopping of the applied continuous overvoltages or overcurrents, the switch can automatically be restored depending on an extent of the overcurrent by a manual operation.

Abstract: The fuseholder includes a current limiting fuse mounted within a fuse body and a lower contact and hinge assembly. The fuse body has contact assemblies mounted on each end thereof. The lower contact assembly on the fuse body is mounted on a hinge which is rotatably supported on an interchangeable cutout mounting. The current limiting fuse includes a fuse element spirally wound around a spider which extends the length of the fuse body. The fuse element includes a high current fusible element and a low current fuse element. The fusible element includes a plurality of spaced reduced areas and is supported on the spider by support surfaces which are located between adjacent reduced areas of the fusible element. An auxiliary wire also extends the length of the fuse body about the spider.

Abstract: A carrier tube for electronic connectors and the like comprises an elongated hollow body consisting of a base member and a top member extruded from a plastic material having an anti-stat coating. The base member is of generally u-shaped profile with a pair of end walls extending perpendicularly from an intermediate flat bight wall. The top member is a leg of generally L-profile with an elongated cover wall and a depending offset wall. The top member is hinged to one of the end walls by an integral live hinge. The offset of the cover wall has locking elements which engage complementary locking elements on the other of the end walls so that electronic connectors or the like can be inserted into the hollow body after the cover member is pressed closed with the connectors being inserted into the open end of the closed tubular body.

Abstract: Upper and lower flexible blades carry normally closed contacts that are opened by upward movement of the upper blade responsive to snapping of a bimetal disc. The disc is reset by a pushbutton movable from a rest position to a depressed reset position. In its reset position, part of the reset button extends past the upper blade into engagement with the lower blade for moving and holding the lower contact away from the upper contact to prevent reclosing of the contacts until the pushbutton is moved back toward its rest position.

Abstract: A highly conductive magnetic material useful for a magnet or a magnetic core for an electromagnet, obtained by molding copper or a copper alloy having ferrite dispersed therein.

Abstract: A terminal assembly for a fuse using multiple end plate pieces to collar a terminal element around a neck portion, the end plate pieces being attached to a housing.

Abstract: A lower die having a first recess corresponding to one of outer shapes of the element, and an upper die having a second recess are provided. The outer diameter of the upper dies is smaller than the inner diameter of the first recess so that a gap is formed between the inside wall of the first recess and the outside wall of the upper die. A workpiece is put between the lower and upper dies, and the upper die is pressed against the lower die to form the element.

Abstract: A utility pull box for use in electrical power feed and distribution networks. The pull box is made in a hexagonal configuration with six panels of equal width, all having the same included angle between adjacent panels. A plurality of knock-out windows are located in the lower area of the panels and serve as entranceways for cable carrying ducts which cables are to be connected to appropriate buss hardware located in the interior of the utility box.

Abstract: A thermostat having a cup for housing a bimetal blade. A flange extends from the top edge of the cup which receives an insulating layer and cover material on its top surface. The cover is then folded around and under the flange, simultaneously folding the insulating layer, and then crimped. The added layers of material, which previously extended beyond the depth of the cup can now be essentially equal to the extent of the cup's depth, providing substantially no additional thickness to the overall thermostat.