Abstract: Embodiments of the disclosure can include an inertial short-circuit and seismic hook for an electrical equipment disconnect switch.

Abstract: In an actuating assembly (16) for a control element in a vehicle, in particular for a steering column stalk (10), having an actuating element (18) that is adapted to be shifted in an actuating direction (B), and a seat (20) in which the actuating element (18) is supported for being shifted hi the actuating direction (B) between a basic position and at least one actuation position, at least one separate spring element (28) is provided between the seat (20) and the actuating element (18) and presses on the actuating element (18) by a spring force (F) acting substantially transversely to the actuating direction (B).

Abstract: An assembly for preventing accidental shutdowns includes a trigger, a first button, a resisting portion, a first driving portion, a second driving portion, a sliding block, and a processing unit. The sliding block includes at least one block and at least one groove. When the electronic device is in a shutdown state, the at least one resisting wall is in the at least one groove. When the electronic device is powered on, the processing unit controls the first driving portion to drive the resisting portion to rise up, and controls the second driving portion to drive the sliding block to move horizontally related to the first button until one end of the resisting wall resists against the first button. The other end of the resisting wall resists against the at least one block. An electronic device with the assembly is also provided.

Abstract: A handheld power tool having an electric motor held in a power tool body and a universal controller in the power tool body in communication with the electric motor. The universal controller is in communication with an electronic component that defines a tool type identifier in the power tool body. The handheld power tool also has a battery pack releasably attachable to the power tool body, the battery pack having an on-board electronic identifier. The universal controller has a plurality of different operational control modes for a plurality of different tool types and a plurality of different battery packs with different battery characteristics. The controller can automatically select an appropriate control mode based on the tool type identifier and the battery pack identifier.

Abstract: A slide button, used for activating a mode of an electronic device by operating a toggle switch on a circuit board of the electronic device, includes an operating member, an activating member, and a positioning member. The operating member defines a first surface used for applying a force therein and a second surface opposite to the first surface. The activating member includes two tail fins and a positioning member respectively extending from the second surface. The tail fin defines an opening. The toggle switch is received in the opening. The connecting board is received in the opening and used for enhancing the strength of the two tail fins. The positioning member is connected to the two tail fins and spaced apart from the operating member. The positioning member and the operating member together secure the slide button to the electronic device.

Abstract: A catch assembly coupled to the operating mechanism of the ATS is provided. The catch assembly is structured to arrest movement within the operating mechanism when the operating mechanism moves at more than the speed for which it was designed. That is, the catch assembly does not engage when the operating mechanism is stationary, or moving at a standard speed, i.e. the speed at which the operating mechanism was intended to move. When there is a strong over-current, such as during a withstand test, a magnetic field causes a movable contact to separate from a fixed contact assembly which, in turn, causes the operating mechanism to move at a speed that is faster than the standard speed. The catch assembly is structured to engage and arrest the motion of the operating mechanism when the operating mechanism moves at a speed that is faster than the standard speed.

Abstract: The invention provides a push-button switch including: a star wheel (15) which is rotated by a constant angular step in one direction by a depression of a push button (4) that automatically returns; an indenter (7) which is pressed against the outer periphery of the star wheel (15) by a spring (8); a contact (9) which is attached so as to corotate with the star wheel (15), and which serves as a movable contact; and terminals (10, 11, 12) with which the contact (9) is contacted in accordance with a rotation angle, and which serve as stationary contacts. A small projection (16) having a rounded tip end is disposed in each of ridge portions (15a) of the star wheel (15). Even when the slope of each ridge portion (15a) does not have a large inclination angle, the star wheel (15) is prevented from being stopped at a position where the ridge portion (15a) is opposed to the indenter (7).

Abstract: A redundant switch includes a housing and an actuator movable in the housing in two opposing translational directions. A slide is movable in the housing in the same two opposing directions as the actuator and is coupled to the actuator by two antagonistic springs with clearance in both directions of movement. The switch also includes a latching track with at least two latching notches, which are spaced from each other along the directions of movement. At least two switch units are arranged one beside the other for simultaneous actuation by the slide. A latching cam is movably guided on the slide perpendicular to its directions of translational movement and is urged towards the latching track by a compression spring. One of the latching notches in cooperation with the latching cam defines a rest position of the slide, in which the slide does not actuate the switch units.

Abstract: A latching mechanism is for locking a spring energy store of an electric switching device. The store is tensioned by a rotary drive and an extensible lever system. In the latching mechanism, the extensible lever system is locked with the spring energy store under tension by way of a support element, an auxiliary lock and a primary lock, in addition to a stop that is allocated to the primary lock. The auxiliary lock can be pivoted by the extension of the lever system and the position of the primary lock during the pivoting of the auxiliary lock can be influenced by working surfaces that are allocated to one another. To configure the locking mechanism for pivoting the primary lock in a manner which obviates the use of a return spring that acts on said primary lock, the auxiliary lock and the primary lock respectively have at least two working surfaces.

Abstract: An electrical switch, such as a two-position rocker or a momentary rocker switch, has an electrically conductive armature made of magnetic material that includes at least two faces extending from a common vertex. The armature is mounted to pivot about its common vertex to bring at least one of the armature faces into and out of electrical shorting relationship with electrical conductors of the switch that, preferably, are formed directly on a nonconductive sheet magnet coupler layer. The sheet magnet coupler layer magnetically attracts and holds the rocker armature in a switch position until a user applied actuating force is applied to a face of the armature such that the armature pivots to another switch position and, preferably, the switch is provided with an armature illumination system.

Abstract: The position of an operated winker lever (104) is held by a moderation pin (108) and a moderation ridge portion (151). Further, a position detection means detects a position at which the winker lever (104) is held. Moreover, a projection portion (121) and a guide portion, which respectively interlock with an operating plate (131) of a solenoid (103) and a winker lever (104), are engaged with each other. Thus, as the magnetized operating plate (131) moves, the winker lever (104) is returned to a neutral position.

Abstract: In a stalk switch, a control lever is rotatably supported on a housing, and a driving member is slidably held on the base end of the control lever via a first spring. A sectionally V-shaped cam surface is provided inside the housing, and an end of the driving member is pressed into contact with a cam surface, whereby the control lever can be rotated between the neutral position and the left and right operating positions. A stopper member is slidably supported on the housing, and the stopper member is urged by a second spring having an urging force smaller than that of the first spring so as to project from the valley of the cam surface. An attraction member is attached to a rotating member rotating operatively associated with the slide of the stopper member, and an electromagnet is attached to the housing so as to oppose the attraction member.

Abstract: An air circuit breaker bell alarm accessory interacts with the circuit breaker contact position indicator to provide local and remote indication of the occurrence of a circuit interruption. A drive pin extending from the bottom of the accessory interacts with a slot on the contact position indicator lever to prevent release of the circuit breaker closing spring until the bell alarm accessory is manually reset.

Abstract: A device which will limit the travel of the slide knob of a slide dimmer to a selectable value, limiting the maximum illumination level of the light bulbs that are being controlled by said dimmer.

Abstract: A touch button switch includes a body (10) having a conductive actuator (28) slidable from one end against a surface (62) to actuate a switch (61) on a board (52) which is held in place by hook latches (53) engaging mortises (55) in the circuit board. The surface (62) may provide conduction from the touch pad to electronic motionless switch circuitry (66) so that the touch button is usable either as a tactile switch touch button, as a motionless touch button, or both. Or, the actuator can be blocked from sliding by means of a spacer (68); and the switch (61) may be replaced by a structure (61a) holding an electrically conductive surface (62a), or not: either way, the touch button will then operate only as a motionless touch button. Or, the surface (62) can be disconnected (65) from the circuit (66), or the circuit (66) can be not installed, to operate only as a tactile switch touch button.

Abstract: A pair of lock links straddling and pivoted on the same pin as the latchable cradle of a circuit breaker follow the toggle device of the breaker either by riding on the toggle knee pin or through a pin which bears against the edges of the toggle arms. The lock links have extensions which engage the handle yoke to prevent the handle from being moved to the off position when the circuit breaker contacts are welded closed causing the toggle device to remain erected.

Abstract: A trip-free operating mechanism for a load break switch of the type having a fixed contact engageable by a movable contact between a fully closed position and a fully open position. The operating mechanism includes an operating lever connected to the movable contact and rotatable about a shaft to move the contact between its open and closed positions. A follower rotates with the shaft into and out of contact with the operating lever. A closing spring biases the operating lever and the follower towards each other. An opening spring drive connects to the follower to drive the follower to its switch contact open position. A first latch holds the operating lever and follower apart against the force of the closing spring when the operating lever is in its switch contact closed position.

Abstract: A switch (10) comprises a switch housing (11), a plunger (12) located within the switch housing (11), one end of the plunger (12) extending out of the housing (11), the plunger (12) being capable of limited movement relative to the housing (11). An electrical contact (17) is provided on the plunger (12) and is adapted to engage an electrical contact (19, 20) associated with the housing (11) at an outward limit of movement of the plunger (12). A stop (25) is provided coaxially of the plunger (12) for engagement of the end (18) of the plunger (12) at a normal inward limit of movement of the plunger (12). The stop (25) is displaceable axially when a load in excess of a predetermined magnitude is applied thereto by the plunger (12) to permit movement of the plunger (12) beyond its normal inward limit of movement relative to the housing (11).

Abstract: A pair of lock links straddling and pivoted on the same pin as the latchable cradle of a circuit breaker follow the toggle device of the breaker either by riding on the toggle knee pin or through a pin which bears against the edges of the toggle arms. The lock links have extensions which engage the handle yoke to prevent the handle from being moved to the off position when the circuit breaker contacts are welded closed causing the toggle device to remain erected.

Abstract: The handle of a circuit breaker is blocked from movement to the off positiion, when the contacts are welded closed, thereby preventing rotation of the common cross-bar on which contact arms carrying the movable contacts are mounted, by an interlock which includes radial extensions on the arms of a pivoted handle yoke which radially engage projections on the cross-bar.

Abstract: A circuit breaker includes an interlock which prevents movement of the handle to the off position when the contacts are welded closed. The interlock includes a pair of floating links which jam between slots in arms of the yoke of a spring powered operating mechanism which carries the handle, and recesses in the rotatable cross-bar carrying the movable contact arms. The recesses are offset from the rotational axis of cross-bar so that an attempt to move the switch to the off position generates a moment which will break open lightly welded contacts.

Abstract: In a snap locking mechanism for rotary switches an operating shaft (4) operable by a switch handle can be rotated against the force of an energy-storage mechanism and each lock-in position is occupied with at least partial release of the energy-storage mechanism. The energy-storage mechanism is formed by axially acting compression springs (8) and acts on a driver ring (6) exhibiting slopes in the peripheral direction which interacts with another driver ring (13), couplable with the operating shaft, exhibiting a corresponding counterprofile with slopes. A coupling for dragged slaving (28, 29) is provided between the two driver rings (6, 13). Handle-side driver ring (6) carries stops (11) on its front facing away from these slopes, which interact with counterstops (12), integral with the housing, when they reach the snap position of the locking mechanism.

Abstract: The invention is an assembly of a push-pull switch and a device to selectively limit the action of the push-pull switch. The switch has a body, a plunger translatable into or from the body, and a round head on the plunger. The switch opens or closes depending on whether the plunger is extended or retracted. The device is comprised of two semi-cylindrical sleeve halves that fit together to form a complete sleeve about the head of the plunger. The sleeve is open at both ends, has two internal grooves into which the head can snugly fit, and has an external groove to accommodate a clip, tie or like mechanism for holding the sleeve halves together. Depending on which internal groove is fit over the head and on which end of the sleeve faces the body of the switch, the plunger will either be locked in an extended position or will be prevented from resting in a retracted position.

Abstract: A switching mechanism in a circuit breaker having a latch being locked from moving when the circuit breaker is in a normal "on" state, a toggle link having a striking part being coupled to the latch and elastically urged with an elastic force by a switching spring at times when the circuit breaker is in the normal state and released from said urge at times when the circuit breaker is tripped or changed from the normal state to a tripped "off" state, and a stopper disposed adjacent the striking part of the toggle link in that when the circuit breaker is tripped, the latch is released to cause the striking part of the toggle link strike the stopper intermediate in the tripping action so that the time required for completing the tripping of the circuit is reduced.

Abstract: A drill control organization includes a cam member rotatably mounted within spaced support blocks, wherein a forward support block is mounted within a side surface of a handle and coextensively therewith. A dial plate is mounted to a forward support shaft of the cam, including an indicator handle to effect selective rotation of the cam to provide a selective abutment surface in cooperation with a rear surface of a speed control trigger of a drill organization.

Abstract: A switch plunger is covered at its exposed end with a serrated cap which is ratchetable over the end of the plunger. The plunger is axially slidable within a housing upon which is mounted a selectively operable locking pin. The locking pin may be actuated during installation of the switch so as to fix the relative position of the plunger within the housing during installation. This initial setting of the plunger within the housing also aligns a pair of electrical contacts mounted on the plunger with cooperating circuitry mounted within the housing. The switch is initially installed and calibrated simply by engaging the lock pin with the plunger and inserting the switch within an aperature formed in a cover or housing and abutting the cap with a switch actuator.

Abstract: An interlocked infrared detector wall switch which prevents use of the full "on" position that bypasses the infrared sensor, but permits changeover by service personnel to use the full "on" position. The slide switch on the wall switch assembly is partially covered by a snap-on interlock plate so that it can not be moved to the full "on" position. Removal of the interlock plate requires a screwdriver for leverage within an opening at the bottom of the interlock plate, but this opening is covered by the decorative switch plate, so that removal of the interlock plate is impossible without first removing the covering decorative plate. Casual disabling of the interlock is thereby prevented.

Abstract: A switch assembly comprising an actuator plunger for actuating a built-in switch, a rotary shaft for rotating in response to an external operating force, and a cam coupled to the rotary shaft and adapted to contact the actuator plunger, the actuator plunger being adapted to be moved upwardly or downwardly in response to a rotation of the rotary shaft through the cam so as to switch the built-in switch, and the cam having a hole to provide a predetermined free angular play between the rotary shaft and the cam as assembled.

Abstract: The sealed toggle action switch comprises an operating lever having a front operating arm projecting out of the front component of the casing. The lever has a rear arm, projecting into the casing and carrying a contactor plate for relative sliding and swinging movement. A coil spring is received around the rear arm and is compressed between the contactor plate and the front sealing flange of a soft resilient sealing boot, such sealing flange being compressed against the operating lever. The boot has a rear, outwardly projecting sealing flange which is retained between the front and rear casing components. The contactor plate has a pair of J-shaped flanges which are slidably engageable with first and second fixed contacts having forwardly projecting protuberances, affording a detent action with the J-shaped flanges. In one position of the operating lever, the J-shaped flanges of the contactor plate engage both of the first and second contacts.

Abstract: A thimble-shaped button actuator largely formed of insulating material has a cup-like base with an inside step and is symmetrical about an axis. A thimble is reciprocable in the base along the axis. A spring is seated against the closed end of the base and the closed end of the thimble and urges the thimble in a direction away from the base and against a snap ring in the base in the path of a flange on the thimble. An electrically conducting ring on the thimble is moved by axial pressure on the thimble to abut a pair of electrical conductors seated in the base and overlying the step. Electrically conducting binding screws are recessed in and pass into the base to engage threads in the conductors.

Abstract: A fluid medium pump includes a piston having a hollow interior for receiving a connecting rod adapted to open and close a passage through the piston selectively in accordance with the sense of movement of the rod. The connecting rod includes a groove that opens and closes the passage on the piston's compression stroke and opens the passage on the piston's return stroke. User apparatus includes the pump and various pump heads for effecting spraying, foaming and container pressurization. A control mechanism for pump operation renders the pump inoperative for transport, selectively operable upon triggering or continuously operable.

Abstract: A variable speed trigger switch particularly adapted for use with electric power tools such as drills. The trigger switch features clam shell construction and a single vertically disposed circuit board thereby facilitating assembly and resulting in a low cost and compact unit. Wire connections are kept to a minimum through use of the circuit board in accordance with this invention having power contact resistance and wire terminal connectors formed directly on the board. The trigger switch includes a locking feature enabling the trigger switch to be locked at a desired position and further provides an adjustable detent which can be felt by the user during trigger retraction. The electronics package of the trigger switch employs an electronic motor speed control circuit which provides a combination of open loop and closed loop motor control.

Abstract: A circuit interrupter comprising a pair of separable contacts at least one of which is movable, and an operating mechanism operatively connected to the movable contacts for opening and closing the contacts. The operating mechanism includes a movable contact arm having mounted thereon the movable contact, a latch lever pivotally mounted on the movable contact arm, and a toggle link mechanism connected at its one end to an operating handle and the other end of which is directly engageable with said movable contact arm and the latch lever. The movable contact arm has a latch surface, and the latch lever has a latching end which, in cooperation with the latch surface, releasably catches the other end of the toggle link mechanism.

Abstract: An anti-rebound latch having a generally U-shaped housing which defines a central blade path opening between first and second side legs. The housing supports a pivotally mounted generally crescent shaped drive-arm which includes a kicker portion at one end positioned adjacent the top of the blade path opening and a pusher portion at its opposite end. The drive-arm is operatively associated with a blade catcher carried by the first side leg which is reciprocally movable between a first position in which no part of the blade catcher extends into the opening and a second position in which the catcher extends across the opening to the second side leg. The catcher is spring biased to its first position.

Abstract: A molded case industrial circuit breaker is provided with a shortened contact separation distance upon manual operation to reduce the stresses imposed upon the breaker operating mechanism when the breaker is manually operated to open or close the contacts. A camming surface is provided on the cradle operator to provide a stop for the toggle pin both upon opening as well as upon closing the contacts. The decreased separation which occurs between the contacts upon manual operation allows a savings in the amount of contact braid material as well as reducing the size of both the fixed and movable contacts. The decreased stresses on the mechanism correspondingly allows for a reduction in the material strength and mass of the breaker flexible connectors, operating springs, and contacts.

Abstract: The present invention describes an air circuit breaker having a bounce preventive device which is provided on the direction changing lever interposed between the link mechanism to drive the contact opening and closing mechanism for closure of the contact and the contact opening and closing mechanism, so as to prevent the bouncing phenomenon from occuring at the time of the OFF-operation, thereby making it possible to secure accurate circuit breaking action.

Abstract: A locking device to be mounted in conjunction with a switch arm. The locking device is to be moved between a locking position and a release position. The switch arm is to be movable between "on" position and "off" position. With the locking device is the locking position, the switch arm is prevented from movement from the "off" position to the "on" position. With the locking device in the release position, the switch arm is readily movable between the "on" and "off" position.

Abstract: A switch assembly is provided for connecting a battery to an electronic ambly which is part of a sonobuoy which is deployed from an aircraft. A normally-closed micro-switch is connected in a battery circuit and a rotatable cam depresses a lever arm on the micro-switch to open the circuit. A lanyard, having one end attached to an aircraft, is attached to the rotatable cam and launching of the sonobuoy causes the lanyard to rotate the cam and release the lever arm of the micro-switch. A safe pin prevents rotation of the cam until the safe pin is removed prior to launch.

Abstract: A locking device prevents simultaneous displacement of two slides in a common plane, each slide being associated with a respective push button. Each slide is returned by a respective spring, and has a ramp and a notch directed towards a bolt placed between the slides and capable, by actuation of a push button, of moving to a working position to prevent movement of the other push button. The improvement is that the bolt is kept at a central rest position, equidistant from the ramps, by a resilient element. When the bolt is placed in working position by actuation of a first push button, actuation of the second push button causes the bolt to be kept in that position. In the working position, there is complete absence of any contact, between the bolt and the first slide, which might otherwise prevent the return movement of the first slide.

Abstract: A paddle switch safety button which prevents the paddle switch from being activated prior to the safety button being depressed. A unique multi cross section stem of the safety button cooperates with a U-shaped cutout in the paddle switch lever. The stem interferes with the lever in its extended position and passes in the U-shaped notch in the depressed position to allow the paddle switch lever to be operated.

Abstract: Switch arrangement with switches completely equipped both for normally closed and for normally open operation, in which, by means of an insulating part which can be selectively placed operatively with respect to the contact pieces which cooperate as breaker or the contact pieces which cooperate as maker, one type of operation in each case is blocked. For this the insulating part has abutment stops, which in both inserted positions in each case lie outside the contact places and which assure an air spacing between the contact pieces which thereby are blocked from making contact.

Abstract: A manually actuatable power control device for controlling a power switch in a portable appliance. The power control device is of one-piece construction and has an integrally formed spring member for biasing the control means to a preferred position. The control means is constrained to partake of linear motion for effecting control of the power switch.

Abstract: An electrical switch the body of which includes a base, and supports an operating member for rotational and axial movement relative to the body. The base is formed with an aperture and a light source support member is received in the aperture. Between the light source support member and the base there is defined a passage therein, in use, a region of an appropriately shaped blocking element can be received. The blocking element, when incorporated in the switch, extends into the path of either axial, or rotational movement of the operating member relative to the body to prevent such movement of the operating member.

Abstract: A circuit breaker with an anti-bounce mechanism characterized by separable contact means operable between open and closed positions and including a cross bar, an operating mechanism releasable to effect movement of the contacts and comprising a link connected to the cross bar, means for preventing bouncing of the cross bar when the contacts are open and comprising a stop member engageable with the length.

Abstract: An alarm switch includes a hollow casing having a keyhole and a finger opening formed therein, at least one electrical switch mounted in the casing having a spring-loaded actuation pin, a reversible cam pivotably mounted in the casing for movement between a first position, in which it is held in biased engagement with the switch pin so as to maintain the pin in a retracted biased state, and a second release position, in which it is disposed in a substantially non-engaging position with said pin so as to permit extension of said pin and triggering of an alarm signal by the electrical switch, a block slidably mounted in the casing having at least one latch lug which, in a first position of the block, maintains the cam in biased engagement with the switch pin and, in a second position of the block, releases the cam to permit movement to its release position so as to thereby activate the alarm.

Abstract: A manual operator for a pushbutton control device includes a cover having protected space surrounding an opening receiving the pushbutton. The cover further includes a raised stop surface adjacent the protected space. A lever actuator is pivotally mounted to the cover so as to concurrently overlie the pushbutton and the stop surface when in a nonoperating position. The actuator is moved into alignment with the protected space and is depressed to assume an operating position.

Abstract: A control device having a housing provided with a movable actuator and a rotatable selector shaft for positioning the actuator in relation to the rotational position of the shaft. An actuator driver is carried by the shaft and is operatively interconnected to the actuator to drive the same upon rotation of the driver by the shaft, the shaft and driver being axially movable relative to the actuator. The housing has a latching part cooperable with a latching part of the driver when the shaft is in a certain rotational and axial position relative to the housing whereby the shaft cannot be rotated relative to the housing until the shaft is axially moved from that certain axial position thereof to another axial position thereof to clear the latching part of the driver from the latching part of the housing and thereby unlock the selector shaft.

Abstract: An alarm switch adapted to be mounted on the wall above a door on the side of the wall toward which the door swings open, having an electrically conductive arm adapted to be set in a position for actuation by the door, when the door swings, to swing inwardly and then upwardly into engagement with a terminal of the switch to complete an alarm circuit. The arm has a finger at its free end adapted to be set in a downwardly extending position for engagement by the door and a raised position clear of the door for deactivating the switch.