Abstract:
Lighting assemblies or lighting fixtures suitable for use in a hazardous location are provided. Generally, the lighting fixtures include a light source assembly, a heat sink, a driver housing or gear module, a thermally conductive sealing member between the light source assembly and the heat sink, and a thermally nonconductive sealing member or a thermally semi-conductive sealing member positioned between the heat sink and the driver housing. The conductive sealing member has a thermal conductivity of at least about 6 Watts per meter-Kelvin, and/or a thermal impedance of less than about 0.21 degree-C inch squared per Watt. The lighting fixtures have controlled directional heat transfer from the light source assembly to the exterior of the lighting fixture, while minimizing the heat transferred to the driver housing.
Abstract:
An electrical switch device includes a housing, faceplate, and a light pipe assembly that includes a light transmissive channel, a position stop, and a cam. The device also includes an air gap switch having a movable contact assembly and a stationary contact assembly. The movable contact assembly includes a cam follower that engages the cam of the light pipe assembly. The light pipe assembly is configured to pulled outward from the outer surface of the faceplate. Movement of the light pipe assembly cause the cam follower of the movable contact assembly to move along the cam and separate the movable contact from the stationary contact, shorting the circuit. Pushing the light pipe assembly in a direction back into the faceplate causes the cam follower to move in the opposite direction along the cam and allows the movable contact to engage the stationary contact and close the circuit.
Abstract:
A dual interface separable insulated connector comprising a faraday cage molded over a bus bar for use in an electric power system and a method of manufacturing the same are provided. The faraday cage can be disposed within a semi-conductive shell. The configuration of the separable insulated connector can provide for easier bonding between the faraday cage and insulating material. Additionally, the configuration can eliminate or reduce the need to coat the bus bar with an adhesive agent and to smooth the metal bus bar to remove burrs, other irregularities, and sharp corners from the bar. Manufacturing the dual interface separable insulated connector can include molding a semi-conductive rubber faraday cage over a conductive bus bar, inserting the faraday cage into a shell, and injecting insulating material between the faraday cage and shell.
Abstract:
Enclosures for use in hazardous areas include sintered filters for thermal management. The enclosures include an opening to which a filter holder housing and sintered filter are coupled. The enclosures can also include a second opening to which a vent or a second filter holder housing and sintered filter are coupled. The internal temperature of the enclosures can be actively managed by such a system because air within the enclosure can be displaced to and from the atmosphere through the sintered filters. Air from the atmosphere enters the enclosure via the second opening and exits the enclosure via the first opening.
Abstract:
An apparatus that includes a first frame and a second frame coupleable to the first frame. The first frame includes an inner edge, an outer edge, and a base extending between the edges. The second frame includes an inner edge, an outer edge, a base extending between the edges, and a sidewall extending substantially perpendicularly outward from the inner edge. The sidewall includes a lip portion that extends beyond the first frame's base once the first frame is coupled to the second frame and the sidewall is inserted adjacently through the first frame's inner edge. The first frame is coupled to the second frame in at least a first orientation and a second orientation. The lip portion has a first length when coupled in the first orientation and a second length when coupled in the second orientation. The first length is smaller than the second length.
Abstract:
Methods of manufacturing low profile magnetic components configured as a power management devices for an electrical system of an electronic device involve prefabricated coil windings assembled with a plurality of flexible dielectric sheet layers, and laminating the plurality of flexible dielectric sheets around the prefabricated coil windings to form a dielectric body having a low profile chip configuration attachable to the electronic device.
Abstract:
A wall mounting bracket assists in mounting equipment to a wall. The wall mounting bracket includes a plate, a post, and a sliding nut. At least a portion of the post extends outwardly from the surface of the plate. The plate is coupled to a stud or other mounting device positioned within the wall behind the sheetrock. The post includes an equipment mounting section and a spacer. The spacer is positioned between the equipment mounting section and the plate and accommodates different wall thicknesses. The bottom surface of the sliding nut is slidably and securely positionable along the top surface of the equipment mounting section. Different types of wall-mounted equipment is coupled to the sliding nut and the equipment mounting section of the wall mounting bracket. Use of the wall mounting bracket allows the equipment to be mounted to the wall without an exposed flange and preserve structural integrity.
Abstract:
A single common load is provided for both space heating of the interior of an enclosure and for testing of a back-up battery therewith. The common load is coupled to either the battery for momentary load testing thereof, or to a power supply when heat is to be generated by the load for space heating of an interior of an enclosure. Providing only a single load for both space heating and battery testing results in reduced component costs, space savings and simplification of connections and wiring harnesses required. Power resistors, active components such as transistors or MOSFETs, and/or resistive heat tracing may be used as the common load, and deposed within the interior of the enclosure.
Abstract:
An information distribution method includes: gathering all-hazards information into an information exchange from a first information source; gathering all-hazards information into the information exchange from a second information source; distributing the all-hazards information from the information exchange to a first independently-controlled alert network; distributing the all-hazards information from the information exchange to a second independently-controlled alert network.