Abstract: A cable tray assembly includes first and second cable tray sections. Each cable tray section included a rail including a vertical web, an upper flange, and a lower flange. Each upper flange includes an outboard portion having a downwardly extending tab forming a groove extending along the upper flange. A splice plate assembly connects the first and second cable tray sections. The splice plate assembly includes a first splice plate configured to be retained in the groove extending along the upper flange of the first cable tray section. A second splice plate is configured to be retained in the groove extending along the upper flange of the second cable tray section. The first and second splice plates each define a fastener opening. The fastener openings are alignable with one another and configured to receive a fastener to connect the first and second cable tray sections when the splice plates are attached to the respective cable tray sections.

Abstract: A pressure relief assembly includes a plurality of valve components and a cap configured to house the valve components. The cap includes a ring having a retaining portion. The pressure relief assembly includes a sensor apparatus coupled to the cap via the ring. The sensor apparatus is configured to sense whether a predetermined pressure threshold is reached. The valve components operate to relieve pressure when the predetermined pressure threshold is reached. The sensor apparatus includes a retaining portion engaging the retaining portion of the ring. A valve assembly includes a first valve apparatus and the pressure relief assembly configured to bypass the first valve apparatus. The valve assembly includes a main housing that surrounds the first valve apparatus and the pressure relief assembly. The main housing defines an aperture in which the cap of the pressure relief assembly is at least partially disposed in the aperture.

Abstract: One or more boost pumps for a liquid hydrogen fuel system are disposed within the fuel tank and fully flooded. An electrical connector of each boost pump is sealed from the fuel tank and accessible from an exterior of the fuel tank while the boost pump is installed. Each boost pump can be independently replaced using a toolbox. Each boost pump is purged of fuel before being replaced by introducing a gas at a center region of the boost pump. The toolbox and new boost pump are purged prior to removal of the old boost pump. Each boost pump can be formed from modular components.

Abstract: A structure attachment for a hanging support system includes an attachment body and a structure fastener coupled to the attachment body and configured to fasten the structure attachment to a structural support. A rod fastener is coupled to the attachment body and defines at least one threaded opening configured to mate with a threaded rod. The rod fastener is selectively movable relative to the structure fastener to adjust an angle between an axis of the threaded opening and a longitudinal axis of the structure fastener.

Abstract: Monitoring systems and methods incorporating wearable personal protection items with intelligent sensor units configured to communicate with one another and determine proximity of individuals to one another while also monitoring personal wellness and safety protocol compliance across a community of persons.

Abstract: A fuse monitoring assembly for monitoring one or more fuses within a fuse housing includes an upper housing and a lower housing coupled to the upper housing and defining a housing cavity; at least one sensor configured to measure fuse data associated with the one or more fuses, the fuse data including operational data of the fuse and environmental data in which the one or more fuses are located; and at least one processor communicatively coupled to the at least one sensor to transmit the fuse data to a remote computing device. The remote computing device is configured to receive the fuse data; determine an estimated remaining fuse service life by analyzing the fuse data using a combination of a physics model and a machine-learning model; and generate a fuse message based on the analysis. The sensor and the processor are positioned within the housing cavity.

Abstract: A pivoting bracket assembly for a valvetrain comprises a pivot pin, a first bracket comprising a first mounting area rotatable about the pivot pin and a first reaction arm extending away from the first mounting area, and a second bracket comprising a second mounting area rotatable about the pivot pin and a second reaction arm extending away from the first mounting area. A compliance member comprises a receiving leg biased against the first bracket and a transfer leg biased against the second bracket. A bias member comprises a first leg biased against the second bracket and a second leg configured to mount the bias member relative to the pivot pin. The bias member is configured to oppose bias forces from the compliance member. An actuator assembly can be installed so that a rotatable shaft is perpendicular to the pivot pin.

Abstract: A hydraulic capsule is provided for use in connection with an engine decompression brake or other variable valvetrain lifts. The hydraulic capsule comprises a main body having a latch pin, a first housing defined by a first outer diameter, an upper chamber defined by the first housing, and a first biasing member, and the latch pin is disposed inside the upper chamber and held by the first biasing member; a second body comprising a plunger, a second housing defined by a second outer diameter, a lower chamber defined by the second housing, and means for restricting the plunger at the bottom of the lower chamber, and the plunger is slidably moveable up and down inside the second housing; a biasing means, wherein the biasing means keeps the main body and the second body in contact; and a check assembly. The first outer diameter and the second diameter can be chosen according to manufacturing specifications and can be the same or different.

Abstract: A solid-state circuit breaker for a DC system includes a switching module having a first terminal detachably connectable to a DC power source and a second terminal detachably connectable to a load. The switching module has a predetermined plurality of solid-state switches connected in parallel between the first and second terminals. An energy absorbing module has a first terminal detachably connectable to the DC power source and a second terminal detachably connectable to the load. The switching module includes a predetermined plurality of solid-state Transient Voltage Supressors (TVS) connected in parallel between the first and second terminals.

Abstract: An improved wire management arrangement for managing utility-connected conductors run to an electrical wiring device includes a connector and a housing. The connector receives the conductors and includes electrical contacts that connect to the conductors. The rear side of the housing is structured to be coupled to the connector, and the front side of the housing is structured to have an electrical wiring device faceplate installed so that the faceplate can connect to utility power through the connector. The connector includes latching elements, and the housing includes latch receiving openings that cooperate with the latching elements in order to couple the connector to the housing. The latch receiving openings obstruct the latching elements from unintentionally becoming de-installed during the Underwriters Lab (UL) 20 pull test.

Abstract: Motor control centers have units or buckets with an extendable/retractable power connection (stab) assembly and one or more operating lever interlocks that include a unit latch to latch to a cabinet and a power connection position interlock that blocks the handle of the units or buckets based on position of the power connection assembly, optionally also including a shutter cam that slides a shutter right and left.

Abstract: A rocker arm assembly can comprise a rocker arm. A rocker shaft comprises a channel and an oil path enclosed in the rocker shaft. The oil path is configured to supply hydraulic pressure within the rocker shaft to the channel. Rotation-locking mechanism comprises a locking pin or pressure pin configured to slide in the channel. The oil path is configured to supply oil pressure to the locking pin or pressure pin within the rocker shaft. The locking pin can be configured to slide in the channel between a locked position, where the locking pin abuts a groove, and an unlocked position, where the locking pin is withdrawn into the channel. Or, a locking pin can be configured to slide in the rocker arm between a locked position abutting the locking groove and an unlocked position where the locking pin is withdrawn into the rocker arm.

Abstract: A motor assembly can include a motor shaft, a stator assembly, and a rotor assembly, and can include a cooling jacket. The cooling jacket can include an inner wall facing radially inwardly towards the stator assembly and an opposite outer wall facing radially outwardly, a circumferential internal fluid passageway for allowing a cooling fluid to be pumped through an interior of the cooling jacket, the internal fluid passageway being disposed between the inner and outer walls and extending between an inlet and an outlet, a mounting pad receiving, at an opening in the outer wall, a heat generating component associated with the motor assembly, the opening being in fluid communication with the internal fluid passageway such that the cooling fluid can provide cooling to the heat generating component.

Abstract: A power converter system includes a printed circuit board having a first connector for receiving low voltage control signals and a second connector for receiving input voltages from one or more power generators and transmitting output voltages to a power distribution unit. Power devices are mounted onto the printed circuit board to manage the input voltages and to generate the output voltages. An enclosure is mounted around the printed circuit board and power devices. The power devices engage interior surfaces of the enclosure forming a conductive heat path between the power devices, the interior surfaces, and exterior surfaces of the enclosure. The heat path conductively transfers heat from the power devices to the exterior surfaces.

Abstract: A hydraulic multi-pole actuation system opens all poles of a circuit interrupter simultaneously. The system utilizes Thomson coil arrangements with a wide piston attached to the conductive member of each arrangement. A narrow piston is attached to the movable conductor of each pole assembly in the circuit interrupter. The wide and narrow pistons are contained within a hydraulic tank. Activating the Thomson coils causes the wide pistons to displace the hydraulic fluid, and the displaced fluid pushes against the narrow pistons to cause the movable conductors to open the line connections in their respective pole assemblies. The wide pistons have a greater collective surface area that interfaces with the hydraulic fluid than the narrow pistons do, enabling fewer Thomson coils arrangements to be used than there are poles in the circuit interrupter, and enabling movement of the wide pistons to be amplified during translation into movement of the narrow pistons.

Abstract: Systems and methods are described herein that improve grid performance by smoothing demand using thermal reserves. The smoothed demand can reduce peak loads as well as the ramp rate of demand that will otherwise require the use of inefficient, expensive generation sources. These improvements are tied to the selective switching on or off electrical loads that are coupled to thermal reserves, effectively using the thermal reserves as an energy storage mechanism. Historical data of past usage can be used to create load model and ensure that effects on customer comfort are minimized while still accomplishing the beneficial effects for the overall grid, which enables grid owners to both reduce their operational cost by avoiding expensive generation and improve system reliability by achieving more predictable power demand.