Abstract: This document describes a light-sealing gasket with crossbar force distribution. The gasket can be used in an electronic device with a sensor package that is capable of transmitting and receiving signals and is positioned behind a display of the device. The gasket provides a shield between the receive signals and the transmit signals, prevents signal crosstalk, and protects the delicate panel layer of the display. Use of this gasket in an electronic device allows manufacturers to add more features to the device and enrich the user experience.

Abstract: A motor driven electrical device includes: a variable electrical device having a rotational variable control; a first support plate positioned above the variable electrical device; a motor support plate pliably attached to the first support plate using a pliable separator positioned between the motor support plate and the upper support; a motor mounted on the motor support plate, the motor having an output shaft; an interface/control unit coupling the output shaft to the rotational variable control; and stanchions attached to the first support plate for holding the first support plate in a fixed relation with respect to the variable electrical device.

Abstract: A blocking apparatus for blocking a contact structure from closing in a circuit breaker is provided. The apparatus includes a link extending from the circuit breaker and connected to a movable contact arm. The contact structure, being operated by an operating mechanism, remains in a separated position even when the operating mechanism is in the “ON” position due to the connection with the link of the blocking apparatus. A release assembly releases the link when it is desired to close the movable contact arm.

Abstract: An accessory includes a trip arm biased by a spring to pivot in a clockwise direction about a trip arm pivot. A latch is arranged to pivot about a latch pivot and has the trip arm acting on a latch surface on the latch to bias the latch in a counter clockwise direction about the latch pivot. An electromechanical device including a plunger acts on the latch pulling it clockwise about the latch pivot. When a signal is provided to the electromechanical device, the plunger is released allowing the trip arm to pivot clockwise about the trip arm pivot due to the spring and actuates the operating mechanism. To reset the trip arm and the latch, a reset lever is arranged to pivot about the latch pivot. The reset lever includes a tab portion configured for interfacing the operating mechanism, and a drive portion for interfacing the trip arm. This, when the operating mechanism is reset, a portion extending from an operating handle interfaces the tab portion to pivot the reset lever clockwise about the latch pivot.

Abstract: An auxiliary position switch assembly for a circuit breaker provides an electrical signal to an external monitoring device indicative of the position of a pair of separable contacts of the circuit breaker. The auxiliary position switch assembly engages a rod that switches from a retracted and extended position in response to the opening and closing of the separable contacts of the circuit breaker. The switch assembly includes a switch having a pair of separable contacts and a plunger having one end engaging one of the contacts. The plunger slidably engages a concave upper engagement surface of a pivotally mounted actuator. The actuator includes a lower convex engagement surface that engages the rod. A biasing spring connected to the actuator urges the actuator against the rod during operation of the switch assembly.

Abstract: A trip actuator (66) includes a trip spring (106) to bias the trip arm (104) in a clockwise direction about trip arm pivot (120). In the latched and ready to operate state, the clockwise moment about the axis of the latch pivot (132) created by force “F” opposes the counterclockwise moment created about the axis of the latch pivot (132) created by the horizontal component “fx” of force “f”, to hold the latch (110) in the upright position against the force of the trip arm (104). When a trip (triggering) signal is provided to the flux shifter (102), the flux shifter (102) releases the plunger (130). With the force “F” removed, the trip arm (104) will drive the latch pin (134), causing the latch (110) to rotate counterclockwise about the latch pivot (132). As the latch (110) and trip arm (104) rotate, the latch pin (134) slides off the latch surface (126), fully releasing the trip arm (104) and allowing the trip paddle (96) to move the secondary latch tab (50).

Abstract: An accessory for use within a circuit breaker is provided. The accessory includes an actuator having a movable member, a trip member and a link between the movable member and the trip member. The trip member is configured by including a seat portion that allows for a set gap between the link and the movable member.

Abstract: Compliant assembly (110) includes a reset drive (112) mechanically cooperating with a plunger link (120) having a slide interface latch (130) via an intermediate plunger reset spring (142), plunger link (120) also being proximate to plunger (84) to both accept strikage from or become in mechanical cooperation with plunger (84) and to reset plunger (84) from the protruded position to the retracted position. Further, in the detailed embodiment, reset drive (112) also mechanically cooperates with slide link (132) via an intermediate slide reset spring (60), slide link (132) also being proximate slide (86) to reset slide (86) from the unlatched or released position (after, for example, a trip event causes plunger (84) to protrude into contact with plunger link (120) thereby releasing slide interface latch (130) from slide latch seat (90) of slide (86)) to the latched or set position.

Abstract: A circuit breaker operating handle charging torque compensating module includes an operating handle lever connecting between the operating handle and a support frame by means of an extension spring to maintain a uniform force exerted by the operating handle extension spring.

Abstract: An air circuit breaker ratcheting mechanism includes a ratchet and pawl whereby the closing springs charging gear is prevented from reverse rotation during the closing springs charging operation. Upon completion of the charging operation, the ratchet and pawl become disengaged from the charging gear to allow the closing springs to respond to a manual closing button depression. A holding prop within the ratcheting mechanism interacts with a roller bearing on the charging shaft to prevent reverse rotation of the charging shaft under the bias provided by the charged closing springs.

Abstract: A rotary contact circuit breaker having a venting arrangement to vent gasses operated by a short circuit interruption to a location substantially above the load strap of the breaker whereby electrical components are not damaged by the gasses and ionized gasses from different phases are conveyed in discrete channels for a period exceeding the period during which ionization is present.

Abstract: A circuit breaker ON/OFF contact position indicator employs a bell crank assembly interconnecting between the target indicator at the front of the circuit breaker enclosure and the circuit breaker contact closing shaft at the rear thereof to provide accurate real time indication of the ON/OFF condition of the circuit breaker contacts.

Abstract: A circuit breaker contact spring blocking arrangement is by-passed by means of a lock-out system that interacts between the circuit breaker contact spring closing shaft and the circuit breaker closing lock-out system when the circuit breaker contacts are in the OPEN condition.

Abstract: An air circuit breaker bell alarm accessory interacts with the circuit breaker operating mechanism to provide local target indication as well as remote signal indication of the separation of the circuit breaker contacts. An indicator switch provides remote signal indication while a lock-out switch interacts with the accessory target to prevent re-closure of the circuit breaker contacts. One of the switches is selected having "normally open" contacts while the other switch is selected having "normally closed" contacts to reduce the amount of mechanical force required to simultaneously operate the indicator and lock-out switches.

Abstract: Remote indication of the charge state condition of the circuit breaker closing springs is provided by a remote indicating unit. The indicating unit interfaces with the circuit breaker closing assembly to actuate an electric switch in response to the position of the closing assembly. Actuation of the switch turns a on remote signal device when the closing spring is completely charged.

Abstract: A circuit breaker contact closing solenoid assembly within an air circuit breaker includes an upper drive link connecting between a lower drive link and the circuit breaker closing prop driver to release the closing prop driver post from the charging ratchet retainer post. Actuation of the circuit breaker closing solenoid rotates the upper and lower links to allow the charging ratchet to rotate and release the charged closing springs and drive the circuit breaker contacts to the CLOSED condition.

Abstract: An air circuit breaker ratcheting mechanism includes a ratchet and pawl whereby the closing springs charging gear is prevented from reverse rotation during the closing springs charging operation. Upon completion of the charging operation, the ratchet and pawl become disengaged from the charging gear to allow the closing springs to respond to a manual closing, command. An operating handle pivot assembly allows a molded plastic handle operator to be employed and the ratcheting mechanism is arranged for modular assembly during the circuit breaker manufacturing process as well as motor to manual charge conversion one site.

Abstract: A circuit breaker contact position indicator is mounted on the same support platform as the circuit breaker electronic trip unit and contains a micro-switch to provide indication to the trip unit of the status of the circuit breaker contacts. The switch interacts with the circuit breaker operating mechanism crossbar cam by means of a spring-loaded paddle attached to the trip unit support platform.

Abstract: A high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The charging of the powerful operating spring controlling the circuit breaker contacts is made automatically by means of an electric motor. The motor interlock arrangement prevents rotation of the closing shaft until and unless the circuit breaker contact closing spring has become completely charged.

Abstract: This invention relates to a high ampere-rated circuit breaker which meets the electrical code requirements of the world market. The circuit breaker electronic trip unit is contained within a recess in the circuit breaker cover and is interlocked with the circuit breaker operating mechanism to articulate the operating mechanism upon removal. A padlock assembly arranged within the circuit breaker case prevents the circuit breaker contacts from being closed and the cover from being removed. The padlock assembly is only functional when the circuit breaker contacts are in the OPEN condition.