Abstract: A PCB relay comprising a housing having a bottom side, a top side and a circumferential wall and terminal pins protruding from the bottom side for being contacted to a printed circuit board. For conducting heavy load currents from the relay contacts and away from the printed circuit board in a quick manner and via a short pathway, at least two conducting strips are fastened to the circumferential wall of the housing, extending from the bottom side to the top side. The strips form soldering pins at the bottom end thereof and quick-connect plugs or terminals at the top end thereof. An electrically conducting connection between the strips and the terminal pins of the relay may be formed on the PCB or, alternatively, the elements may be directly connected to one another.

Abstract: The relay comprises a flat base, a motor unit mounted on the base, an armature arranged on one end of the motor unit to actuate a contact arrangement fastened on the base at the other end of the motor unit. The movement of the armature upon energization or de-energization of the motor unit is transferred to the contact arrangement by means of a pusher arranged above the motor unit. The pusher is clamped to the armature by means of a multi-functional retainer spring which serves also for fastening the armature to a frame and for biasing the armature into its rest position. The motor unit is inserted with terminals and bobbin posts into oblong holes of the base so as to be displaceable in an actuating direction for adjusting a contact gap or overtravel during assembly of the relay and before securing the motor unit to the base.

Abstract: An electromagnetic relay to be used in applications such as DC motor reversing. The relay consists of two electromagnetic devices in a single enclosure with contacts configured in a so-called "H-bridge" circuit. Each of the devices has a movable contact element, while both devices have a common pair of normally closed and normally open stationary contact elements. Both electromagnetic devices have coil bobbins which are preferably identical in shape and are locked together by means of the common stationary contact elements without a need of additional fastening means. In this manner, the number of parts is minimized and the amount of adjustment required is reduced.

Abstract: A rocker actuator switch having a frame which has a first projection extending therefrom which passes through a yoke portion of a rocker actuator that moves between on and off positions. The rocker actuator is pivotally connected to the frame by a snapping arrangement whereby a second frame projection is guided and slides along a flexible cantilevered beam, which is disposed in a sidewall of the rocker actuator, until the second projection enters a partial circular cutout in the sidewall of the rocker actuator. Upon entering the cutout, the flexible beam retains the second projection in the cutout where it is free to pivot.

Abstract: A protective circuit for removing power from a load detects the presence of a control signal which causes electrical power to be delivered to a load, for example, via a controlled switching device such as an electromechanical relay or a solid state relay. The protective circuit also detects the presence of voltage across the load, signifying that the controlled switching device is causing power to be supplied to the load. The protective circuit removes power form the load when there is an absence of control signal and there is voltage across the load, indicating a failure of the controlled switching device.

Abstract: An adjustable frequency oscillator has an adjustable element, such as a potentiometer, for setting the frequency of oscillation. The circuitry in the oscillator is such that the frequency of oscillation is relatively immune to the characteristics of the adjustable element. The oscillator may be used in a time delay circuit, notably, in a time delay circuit used to control a time delay relay.

Abstract: A push-push (make-break) switch (43) including a thermally operated circuit breaker release is adapted for controlling an electric motor (42). The switch (43) may be employed by itself or used in conjunction with a standard control switch (41) connected to auxiliary contacts (15 and 18) which are normally closed but opened when switch (43) is activated. When switch (43) is momentarily activated, it becomes latched to continue operation of the motor (42) until the motor stalls upon completion of a task. The increased current draw of the motor (42) is sensed by a bi-metalic element (27) whose free end moves to automatically release the switch (43) and disrupt its continuity path. The switch (43) is in a compact, self-contained, design which provides various different operational features. In automotive applications, switch (43) provides convenient express operation of motor operated accessories such as power windows and the like.

Abstract: A securing mounting arrangement is provided for a blowout magnet (16) and an electromagnetic relay (11) for increasing its capacity for switching larger values of voltage and current than possible without the arc extinction characteristic provided by the blowout magnet. In order to provide an electromagnetic relay suitable for applications subject to extreme vibration and shock, such as is type of automotive applications, the primary component of the mounting arrangement is integrally molded in the base (12) of the housing while the relay itself and the cover (13) of the housing all provide portions of a cavity wherein the magnet is contained.

Abstract: A compact electromagnetic relay of the type having an insulative base (1) adapted to receive an electromagnetic assembly (2, 3, 4) on one side of its partition wall (15) and a contact assembly (6) on the other side includes especially adapted armature (3) and pusher (5). The armature has one leg (32) that is bifurcated to form a slotted opening (324) communicating with a socket (323). The shaft region (55) of the pusher has two cross-sectional dimensions of different size. One dimension d1 allows the slotted opening to freely pass over it while the other dimension d2 prevents the socket from disengaging with the pusher when the armature is rotated to assume its working position.

Abstract: An electromagnetic relay of the type having an insulative base (1) which supports an electromagnetic assembly (2, 3) and a contact assembly (6) separated by partition walls (14, 15) includes a multipurpose retaining spring (4). The retaining spring is adapted to mate with the longitudinal portion (24) of the magnetic yoke and includes a plurality of tabs (411, 412 and 413) that dig into the insulative base securing it and the magnetic yoke into position. The retaining spring includes a flexible extension (43) located near a free end (243) of the magnetic yoke. An armature (3) is pivotally mounted on the free end and retained into position by the flexible extension of the retaining spring.

Abstract: A method of assembling electromagnetic relays by securing and aligning the magnetic pole pieces in the base of the relay through the use of ultrasonic reformation of the base material.