Abstract: A portable battery powered welder is disclosed that is configured to operate without an external power source. The portable battery powered welder may include a battery coupled to a welding circuit and a wire feeder. Further, the portable battery powered welder may include a suitcase to integrally support and completely enclose the welding circuit, the battery, and the wire feeder. The suitcase may include a lateral access door having a hinge and a latch. Additionally, the wire feeder and a wire spool may be disposed in a region accessible by the lateral access door. The suitcase may also include an access panel disposed over a region containing the battery. The access panel may be mounted to the case via a snap mount and/or secured via fasteners. Finally, the suitcase may include a top handle and may be made of a lightweight, impact resistant, and flame retardant material.

Abstract: The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW). In one embodiment, a tubular welding wire includes a sheath and a core, in which the sheath includes less than approximately 0.06% carbon by weight. The core includes a carbon source and a potassium source that together comprise less than 10% of the core by weight.

Abstract: A system includes an engine configured to drive a generator to produce a first power output, and a first inverter communicatively coupled to the generator. The first inverter is configured to convert the first power output into a second power output. The system includes a second inverter communicatively coupled to the generator. The second inverter is configured to convert the first power output into a third power output. The third power output includes a welding power output.

Abstract: This patent is directed to an external air conditioning system connected to a parked airplane. The system has multiple refrigeration units. Each refrigeration unit has a controller. Each refrigeration unit's controlled is linked to a common controller. A single stream of air flows through all of the evaporators in series. Each of the refrigeration units has multiple compressors. Additional compressors are activated or deactivated based on refrigerant pressure. The activation or deactivation pressures are staggered across the refrigeration units, thus coordinating operation of the multiple refrigeration units.

Abstract: A modular air conditioning (AC) system including one or more AC modules is provided. The AC modules may be adapted to function individually or cooperatively as part of a modular system. The AC modules may be further adapted to connect in a variety of advantageous ways to facilitate the supply of conditioned air to a variety of downstream applications.

Abstract: Embodiments of a modular air conditioning (AC) unit include a base unit and a blower selected from a group of blowers configured for different cooling capacities. The module AC unit also includes at least one heat exchanger unit selected from a group of substantially identical modular heat exchanger units, the number of heat exchanger units being selected based upon the desired cooling capacity. The at least one heat exchanger unit and the blower are assembled to the base unit to form a modular air conditioning circuit.

Abstract: A tubular welding wire includes a granular core and a metal sheath encircling the granular core. Furthermore, the metal sheath includes at least approximately 0.3% manganese by weight and at least approximately 0.05% silicon by weight.

Abstract: Methods for forming an aluminum weld on an aluminum work surface are disclosed. The methods include providing an aluminum metal-core wire having a sheath with an outer surface and a core composition within the sheath, applying a voltage to the aluminum metal-core wire in the vicinity of the aluminum work surface to generate an arc, and melting the wire and the work surface to form the weld. The sheath is formed with an inorganic lubricant on its outer surface and the core composition includes metal powders, metal alloy powders, or combinations thereof and less than about 5% of non-metallic components or non-metallic agents based on the weight of the wire.

Abstract: Embodiments of a modular air conditioning (AC) unit include a base unit, a blower mounted to the base unit, and at least one heat exchanger module assembled to the base unit and communicatively coupled to the blower to form a modular AC circuit. The modular AC unit also includes a controller communicatively coupled to at least one component of the modular AC circuit and adapted to independently control operation of each of the components of the modular AC circuit.

Abstract: The present disclosure relates generally to welding alloys and, more specifically, to welding consumables (e.g., welding wires and rods) for welding, such as Gas Metal Arc Welding (GMAW), Gas Tungsten Arc Welding (GTAW), Shielded Metal Arc Welding (SMAW), and Flux Core Arc Welding (FCAW). In an embodiment, a welding alloy includes less than approximately 1 wt % manganese as well as one or more strengthening agents selected from the group: nickel, cobalt, copper, carbon, molybdenum, chromium, vanadium, silicon, and boron. Additionally, the welding alloy has a carbon equivalence (CE) value that is less than approximately 0.23, according to the Ito and Bessyo carbon equivalence equation. The welding alloy also includes one or more grain control agents selected from the group: niobium, tantalum, titanium, zirconium, and boron, wherein the welding alloy includes less than approximately 0.6 wt % grain control agents.

Abstract: A welding system includes a welder configured to output power to form an arc between a stick electrode and a workpiece. The welder includes a compartment configured to receive and store additional stick electrodes, and the welder is configured to heat the additional stick electrodes stored in the compartment.

Abstract: Embodiments of a modular condenser unit are provided. The modular condenser unit may include a housing and a first condenser coil and a second condenser coil disposed within a volume of the housing. A fan may also be disposed in an end of the housing and adapted to draw air through at least one of the first condenser coil and the second condenser coil. In some embodiments, the first condenser coil and/or the second condenser coil may be micro-channel condenser coils.

Abstract: A system includes a welding power supply. The welding power supply includes circuitry configured to produce power for a welding operation. The welding power supply also includes a compartment interior to the welding power supply and configured to hold one or more welding electrodes. In addition, the welding power supply may include a covering configured to be removably disposed in an opening of the compartment to allow access to the welding electrodes in the compartment.

Abstract: A torch for a welding or plasma cutting operation configured to provide information. The torch includes a torch body. The torch also includes indicators coupled to the torch body and control circuitry coupled to the indicators and configured to provide data relating to the welding or plasma cutting operation to the indicators.

Abstract: The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW). In one embodiment, a tubular welding wire includes a sheath and a core. The tubular welding wire is configured to form a weld deposit on a structural steel workpiece, wherein the weld deposit includes less than approximately 2.5% manganese by weight.

Abstract: The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW). In one embodiment, a tubular welding wire includes a sheath and a core, in which the sheath includes less than approximately 0.06% carbon by weight. The core includes a carbon source and a potassium source that together comprise less than 10% of the core by weight.

Abstract: The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW). In one embodiment, a method of manufacturing a tubular welding wire includes disposing a core within a metallic sheath. Further, the core includes an organic stabilizer component, in which the organic stabilizer component is an alkali metal or alkali earth metal salt of an organic molecule or an organic polymer.

Abstract: The invention relates generally to welding and, more specifically, to welding wires for arc welding, such as Gas Metal Arc Welding (GMAW) or Flux Core Arc Welding (FCAW). In one embodiment, a tubular welding wire includes a sheath and a core, and the core includes an organic stabilizer component.

Abstract: The present invention is a weld wire comprising a sheath encapsulating a metal core made of powdered metal, wherein a fill percentage of the metal core is no less than approximately 12%. The metal core comprises a core composition alloyed with an alloying element or an combination of elements comprising Cr, Mo, V, W, Hf and Nb or combinations thereof, wherein a total weight percentage of the alloying element or the combination of elements in the core composition does not exceed approximately 1%. In a particular embodiment, the alloying element is Mo in the amounts selected from the range of about 0 to about 0.5 percent by weight and the fill percentage of the metal core is selected from the range of about 12% to about 30%. In a particular embodiment of the invention, the total percentage of the combination of elements is selected from the range of about 0.4% to about 0.8%.

Abstract: Overhead truss assemblies for use with retail displays are provided. The assemblies include multiple trusses that are parallel to and spaced from each other, spanning overhead or otherwise elevated and connecting merchandise display racks on opposing sides of an aisle or aligned with and atop a single merchandise display rack. The trusses have horizontal truss segments and define variable mounting widths. The variable mounting widths are established with one or more connector assemblies that cooperate with and move longitudinally along the horizontal truss segments. Each connector assembly includes a captured plate that is slidingly housed inside of the horizontal truss segment, and an insert connected to and moving in unison with the captured plate. Moving the connector assembly inwardly toward a middle portion of the truss defines a relatively narrower mounting width, while moving the connector assembly outwardly toward an end of the truss defines a relatively wider mounting width.