Abstract: A multi-level feedback actuator assembly for a circuit breaker assembly includes a rotary solenoid, an electric actuator assembly and a manual actuator assembly. The electric actuator assembly includes a switch assembly with an actuator. The manual actuator assembly includes a number of primary actuators, a linkage assembly, and a cam assembly. The number of primary actuators includes a first actuator with a body. The first actuator body is structured to move over a path having at least a first portion and a second portion. The rotary solenoid is operatively coupled to the linkage assembly. The linkage assembly is further operatively coupled to an operating mechanism crossbar. In this configuration, the linkage assembly is structured to apply at least a first bias and a second bias to the first actuator body. Further, the first bias is noticeably different from said second bias.

Abstract: A retainer clip can be used to restrict travel of a hydraulic lash adjuster body relative to a plunger of a hydraulic lash adjuster. A seating depth of the hydraulic lash adjuster can be controlled via a plunger cup in a hydraulic lash adjuster bore. The plunger cup can also restrict purge of lash oil from the hydraulic lash adjuster bore. A rocker arm can comprise a rocker arm body comprising a force-receiving end, a valve end, and a rocker shaft bore. An extension can connect the rocker shaft bore to the valve end. A hydraulic lash adjuster bore can be in the valve end. A plunger cup or an end socket profile can be included in the hydraulic lash adjuster bore for receiving a plunger of a hydraulic lash adjuster.

Abstract: A conduit outlet assembly for a rigid metal conduit raceway of an electrical system is provided. A conduit outlet assembly includes a gasket, a gripping ring, and a condulet assembly. The gasket is sized to circumscribe an outer surface of a rigid metal conduit of the rigid metal conduit raceway. The gripping ring is sized to circumscribe the outer surface of the rigid metal conduit. The condulet assembly is sized to receive the rigid metal conduit, and includes an adapter and a condulet. The adapter includes a compression section and a coupling section, wherein the compression section is sized to receive the rigid metal conduit with the gasket and the gripping ring disposed thereon. The condulet is sized to receive the coupling section of the adapter.

Abstract: A switching device includes: a triggering unit; an actuator coupled to the triggering unit; a switching mechanism coupled to the actuator; and an interface module. The interface module includes: a signal processing unit coupled to the triggering unit; an interface circuit coupled to a transmitting and receiving circuit of the signal processing unit; a power supply input for feeding a first supply voltage; and a voltage converter connected on an input side to the power supply input and a power outlet for issuing a second supply voltage. The power outlet is coupled to the signal processing unit and to the triggering unit.

Abstract: A system for determining an initial angular position of a rotor of a synchronous machine includes a motor driver module configured to provide a motor driver voltage signal to the synchronous machine, the motor driver voltage signal being sufficient to induce an electrical current in the synchronous machine; and a rotor position determination module configured to receive an indication of the current generated in the machine and to determine the initial position of the rotor based on the indication of the current generated in the machine.

Abstract: An exhaust gas recirculation pump system for an internal combustion engine includes an EGR gas source and an electric motor assembly. A roots device is coupled to the electric motor. The roots device includes a housing defining an internal volume wherein the housing includes a radial inlet port receiving the EGR gas source and an outlet port expelling the EGR gas from the housing. Rotors are disposed in the internal volume and connected to the electric motor. A transmission housing is attached to the housing. The transmission housing includes journals formed therein receiving bearings that support the rotors on only a single end of the rotors.

Abstract: The switch contacts of a MEMS relay for a circuit interrupter are coated with a thin layer of liquid metal, and the MEMS relay is disposed in a sealed enclosure containing a gas medium. The gas medium provides an environmentally desirable alternative to sulfur hexafluoride (SF6), prevents oxidation of the liquid metal coating the relay switch contacts, and has sufficient dielectric strength in order to prevent current flow after separation of the switch contacts.

Abstract: A light fixture includes a light housing defining an interior space. A light source is at least partially disposed in the interior space of the light housing. A driver housing is attached to the light housing and defines an interior space. A driver is disposed in the interior space of the driver housing for providing electricity to the light source. The driver is configured for connection to a main power source for energizing the light fixture. A battery is disposed in the interior space of the driver housing and is configured to provide backup power to the light fixture in the event of a loss of power from the main power source.

Abstract: The present disclosure relates to electrical devices housed in a distribution box and, more particularly, to an interlock mechanism for visually indicating whether main contacts operated by the electrical devices are in an open condition or a closed condition.

Abstract: A bus arrangement includes a coordinator, a first subscriber having a first optical display, a second subscriber having a second optical display, a third subscriber having a third optical display, and a bus that couples the coordinator to the first, second, and third subscribers. In a standard operating phase, the first subscriber is configured to display first local information of the first subscriber on the first optical display, the second subscriber is configured to display second local information of the second subscriber on the second optical display, and the third subscriber is configured to display third local information of the third subscriber on the third optical display. The coordinator is configured to switch from a standard operating phase to a display operating phase based on detecting a fault in the first subscriber.

Abstract: A light-emitting diode (LED) module of an LED luminaire assembly for a harsh and hazardous environment is provided. The LED module includes an LED assembly, a single-piece lens assembly, and an adhesive sealant. The LED assembly includes a plurality of LEDs. The single-piece lens assembly includes a plurality of lenses, wherein the lens assembly includes a groove defining a complete loop and surrounding the plurality of lenses, the lens assembly coupled to the LED assembly, and the plurality of lenses covering at least one of the plurality of LEDs. The adhesive sealant is disposed in the groove and bonded to the lens assembly, the adhesive sealant sealing off the plurality of LEDs from an ambient environment around the LED module.

Abstract: A latch assembly comprises a latch pin configured to reciprocate in a latch bore. The latch pin comprises a main body comprising a first plug end, a second plug end, and a clearance between the first plug end and the second plug end. The latch pin is configured to selectively move in the latch bore. A rocker arm assembly can comprise the latch assembly. An outer arm can be configured to rotate about a rocker shaft and comprise the latch bore. An inner arm can at least be partially disposed within the outer arm and configured to rotate. When the latch pin is in the activated position, the inner arm is configured to transfer force to the outer arm via the latch pin. When the latch pin is in the deactivated position, the inner arm is configured to move in the clearance and in the lost motion gap.

Abstract: A short circuit test device includes: a first line test conductor couplable to a first load line conductor of an electric load network and a neutral test conductor couplable to a neutral conductor of the electric load network; a voltage source switchable to the first line test conductor and the neutral test conductor to output a predefinable test signal; a measurement unit for measuring an electric voltage and/or current, the measurement unit including measurement inputs which are connectable to the first line test conductor and the neutral test conductor, the measurement unit including an output for providing a measurement signal; and a control unit connected to the voltage source and the measurement unit, the control unit: causing the voltage source to apply a test voltage to the first line test conductor and the neutral test conductor and comparing the measurement signal provided by the measurement unit.

Abstract: The present disclosure provides an adjustable-depth junction box assembly comprising a junction box, support-mounting bracket, box-mounting bracket, and at least one screw thread. The box-mounting bracket is connected to the support-mounting bracket. In some embodiments the box-mounting bracket and the support mounting bracket are integrally formed. The support-mounting has a front face that defines an opening in which the junction box is received. The box-mounting bracket includes a mounting portion. The screw thread extends through the junction box and is rotatable coupled the mounting portion of the box-mounting bracket. The screw thread is coupled such that rotation of the screw thread imparts translation of the junction box relative to the support-mounting bracket. The present disclosure further provides a box-mounting bracket assembly comprising a junction box, box-mounting bracket, and at least one screw thread.

Abstract: A combination motor control device includes a power circuit structured to sense voltage and/or current flowing through the combination motor control device, a semiconductor switching and interruption circuit including a number of solid state transistors and being operable to turn on to allow power to flow through the combination motor control device and to turn off to stop allowing power to flow through the combination motor control device, and a control circuit structured detect faults in power flowing through the combination motor control device based on the sensed voltage and/or current, to control the semiconductor switching and interruption circuit to provide a motor starter and/or motor controller functionality, and to control the semiconductor switching and interruption circuit to turn off in response to detecting a fault in power flowing through the combination motor control device.

Abstract: The present disclosure relates to a hydraulic power pack arrangement that can be configured in multiple different mounting configurations. The hydraulic power pack arrangement can include a bracket assembly for mounting a hydraulic power pack core assembly and a hydraulic reservoir assembly at a mounting location such as a floor, wall, or ceiling of an aircraft.

Abstract: A multi-stage regenerative rotary pump assembly includes a housing, and an elongated shaft received in the housing for rotation about a rotational axis. The shaft has a longitudinal axis aligned with the rotational axis. A rotary member is operatively connected to the shaft and dimensioned for receipt in the housing. The rotary member has opposite, first and second faces axially spaced from one another in a direction of the longitudinal axis. At least the first face of the rotary member includes a first pump stage having a first stage inlet and a first stage outlet in fluid communication therewith. At least the first face includes a second pump stage having a second stage inlet and a second stage outlet in fluid communication therewith, and the second stage inlet is configured to be in fluid communication with the first stage outlet.

Abstract: An additive manufactured rotor for a seal assembly is provided. The rotor surrounds a central axis and extends along the central axis from a first axial end to an opposite second axial end. The rotor is rotatable about an axis of rotation that is co-axial with the central axis. The rotor can include an outer ring and an inner ring that is connected to the outer ring by a radial web. The outer ring has a rotor face for providing a sealing surface at the first axial end. The outer ring can define a first annular cavity and the inner ring can define a second annular cavity that is radially separated from the first annular cavity. The radial web can define a fluid channel for providing fluid communication between the first annular cavity of the outer ring and the second annular cavity of the inner ring.

Abstract: A fluid fitting includes a nut, a sleeve, and a union. The union and the nut may include corresponding stops and corresponding markings. Corresponding stops and corresponding marking may engage with each other when the nut is sufficiently connected with the union. A method of connecting a fitting includes connecting a sleeve of the fitting with a nut of the fitting, connecting the nut with a union, rotating at least one of the nut and the union until a stop of the nut engages a stop of the union, restricting over torque via the stop of the nut and the stop of the union, and verifying a sufficient connection if first markings of the nut align with second markings of the union.