Abstract: A transformer (3) having a ferromagnetic core (5, 7) provided with windings and a metal screening device which comprises a screening sheath surrounding the core (5, 7). The screening device comprises supporting caps (25, 27) which are placed on the transformer from opposite directions and between which the screening sheath (13) is clamped at a distance from the core. The screening device may also serve as a holder for the transformer on a chassis of an apparatus.

Abstract: In an exemplary embodiment, primary and secondary coupling elements are disposed in a recess of a first housing and in a second housing which can be inserted into the recess of the first housing as a plug part. The coupling elements exhibit connection surfaces which are fitted to one another and via which a coupling location is produced upon production of the plug-type connection. The goal of the disclosure is to construct a galvanically separating coupling location of the type initially cited which, given particularly high electric strength and given optimum insulation, allows energy and/or signal transmission with an optimally high efficiency. This object is inventively achieved in that the coupling elements are suspended in a floating and resilient manner in the respective housings relative to at least one connection surface, preferably, however, relative to respective connection surfaces which enclose the respective coupling elements.

Abstract: A vibration resistant mounting bracket (10) that secures a power transformer (20,30) within the housing of an aircraft ignition system. The bracket (10) has a single source (11) that extends through the winding (30) and partially around the core (20) of the transformer and is characterized by a pair of downwardly facing surface portions (44, 45) and a pair of upwardly facing surface portions (52,53) which are located in parallel planes with each pair of surfaces being axially offset from each other.

Abstract: A transformer coil body providing an elongated creepage path between primary and secondary windings has at least one U-shaped channel member with a portion thereof projecting between the primary and secondary windings providing a surpentine creepage path, the minimum distance of which is at least as great as established creepage distance standards, the coil body being formed of a single piece.

Abstract: A flat-type transformer comprises in one embodiment of two spaced-apart coil arrangements. Each arrangement includes a flanged coil form on which a coil is wound. Each of these arrangements further includes an L-shaped strip which supports terminals. One arm of the L-shaped strip extends into the coil form and the other arm extends out of the coil form and is spaced from the flange to form a gap. A third coil arrangement with a strip which forms a T shape with the coil form is also included. A housing with pockets for surrounding the coil arrangement is provided. It has cutouts which exend into said gaps.

Abstract: A shield for protecting transformer wire has a cap which fits over and locates the shield relative to the transformer laminations, a side wall to protectively cover transformer wire wound on a bobbin and an integral flange to protectively cover transformer input and output wire. A deflectable locking piece integral with the side wall is locatable under a flange of the bobbin to lock the shield in place.

Abstract: A transformer comprising a stack of sheet metal laminations; an insulating plastic bobbin on which a primary coil is wound; an insulating plastic bobbin on which the secondary coil is wound; and two interengaging insulating plastic covers which enclose the primary coil and provide additional insulation between the primary coil and the laminations and between the primary and secondary coils, while also providing a strain relief for the primary leads from the primary coil. The plastic components are formed to provide two mms of insulation between the primary and secondary coils, and between the primary coil and the laminations. The plastic components are arranged to provide at least 10 mms of "creepage" distance between primary and secondary coils and at least 8mms between the primary coil and the laminations. The insulation provided is sufficient to permit the steel laminations to be mounted directly on the metal frame of an appliance.