Abstract: A combustion-powered fastener-driving tool that include a chamber member retainer assembly configured to enable the controller of the tool to prevent the chamber member of the tool from moving to an open unsealed position and to ensure the tool's combustion chamber remains sealed until the piston fully returns to its pre-firing position.

Abstract: A positioning assembly is provided to position a pipe machining apparatus on a pipe so that a miter cut can be performed. The pipe machining apparatus includes a frame, a tool carrier rotatably mounted to the frame, wherein the frame and tool carrier define a longitudinal central axis, a plurality of couplers equally spaced around the frame and coupled to the frame, each coupler being configured to be moved radially relative to the frame and the tool carrier to engage a surface of the pipe and further being configured to move the frame and the tool carrier parallel to the longitudinal central axis, and a scale on the tool carrier, the scale being configured to display the distance between the frame and tool carrier and the surface of the pipe. The method of using same is provided.

Abstract: A method of producing ethanol by electrocatalytic reduction of carbon dioxide, comprises reducing carbon dioxide in an aqueous electrolyte on an electrocatalyst with electricity. The electrocatalyst is exposed to a magnetic field of at least 400 Gauss, the electrocatalyst comprises at least one paramagnetic material, and an amount of ethanol produced by the reducing is greater than an amount of ethanol produced without the magnetic field. Also described is a system for electrocatalytic reduction of carbon dioxide, which comprises (a) and electrocatalyst, containing (i) copper and (ii) copper oxide, C60 and/or neodymium; (b) an aqueous electrolyte, in contact with the electrocatalyst; (c) a counter electrode, in ion-conductive contact with the electrocatalyst; (d) a magnet, for providing a magnetic field of at least 400 Gauss to the electrocatalyst; and (e) a power source, electronically connected to the electrocatalyst and the counter electrode.

Abstract: A cleaning apparatus is configured to clean electronic substrates including printed circuit boards and semiconductor product assemblies. The cleaning apparatus includes at least one cleaning module configured to treat electronic substrates and a conveyor system configured to transport the electronic substrates through the at least one cleaning module. The at least one cleaning module includes a spray system having a manifold connected to a source of fluid and a plurality of spray bars fluidly coupled to the manifold, and an adjustable height spray system configured to move the manifold and the plurality of spray bars up and down with respect to the conveyor system.

Abstract: A method and apparatus for providing welding-type power is disclosed. It includes an input circuit, a dc bus, an output circuit, and a control module. The input circuit receives power and provides an intermediate signal to the bus. The output circuit receives the dc bus and provides an ac welding-type output. The output circuit includes a half-bridge output inverter with at least first and second switches. The output inverter further includes an output control circuit. The output control circuit provides freewheeling paths that includes control switches, the output, antiparallel diodes. The control module has a four quadrant control module that provides control signals to the half bridge output inverter and provides modulating control signals to the first and second output control switches. The modulating signals cause the output control switches to be turned on and off multiple times to control a rate of change of output current.

Abstract: Systems are disclosed relating to a mobile device mounted to a welding helmet such that a wearer of the welding helmet can see a display of the mobile device when wearing the welding helmet. In some examples, the mobile device is mounted such that a camera of the mobile device is unobscured and positioned at approximately eye level, facing the same way the wearer's eyes are facing. In some examples, the simulated training environment may be presented to the user via the display screen of the mobile device, using images captured by the camera of the mobile device, when the mobile device is so mounted to the welding helmet.

Abstract: An example engine-driven welding-type power supply includes: an engine; a generator configured to convert mechanical power from the engine to electrical power; power conversion circuitry to convert the electrical power to welding power and to output the welding power via output terminals; and control circuitry configured to, while the engine is stopped, automatically start the engine in response to detecting a welding circuit scratch via the output terminals.

Abstract: Described is a female connector having a housing, a retaining clamp, and an indicating clamp. The housing has a channel running through it and a window on its side. The retaining clamp wraps around part of the housing and can move into the channel through the window to lock the female connector to a male connector. The indicating clamp is placed around both the retaining clamp and the housing and is temporarily locked to the retaining clamp. When the male connector is inserted but not yet fully secured, the indicating clamp stays locked. Once the male connector is fully secured, the indicating clamp unlocks and can be removed.

Abstract: An example welding power supply includes: power conversion circuitry configured to convert supply power to welding current and to output the welding current to at least one of a shielded metal arc welding (SMAW) electrode or a gouging torch; a voltage sense circuit configured to measure an output voltage of the power conversion circuitry; and control circuitry configured to: control the power conversion circuitry using a current-controlled control loop based on a target current; while the output voltage is above a lower voltage limit, control the target current based on a difference between a reference voltage and the output voltage; and in response to detecting that the output voltage has decreased below the lower voltage limit, control a welding current output by the power conversion circuitry based on a first exponential relationship.

Abstract: In certain embodiments, a welding contact tip includes a first axial end portion having a welding wire outlet of an internal bore of the welding contact tip. The welding contact tip also includes a threaded middle portion adjacent the first axial end portion. The threaded middle portion includes external threads configured to mate with internal threads of a gas diffuser of a welding torch. The first axial end portion includes a tapered outer surface adjacent the threaded middle portion. In other embodiments, a welding torch assembly includes a gas diffuser having an outer circumferential groove having an outer surface with first and second walls that extend radially outward from first and second opposite axial sides of the outer surface, a nozzle having an inner circumferential rib with a tapered inner surface, and a compressible member disposed within the outer circumferential groove of the gas diffuser and the inner circumferential rib of the nozzle.

Abstract: The present application discloses a door lock, which may be implemented on a door panel of an electrical device such as a washing machine. The lock includes a housing that can be installed into the panel without hardware such as a mounting screw, eliminating a need to position a screw in the panel for mounting the lock. The lock housing may include a lock head that can move into or out of a groove formed as a recess into a clamping edge of the housing. Ramped surfaces and contact faces of the housing are provided that allow rotation of the housing during its installation into the panel, which force the lock head into the groove during the housing insertion into the panel and allow the lock head to restore by moving out of the groove when the housing is in an installed position, locking the housing in place.

Abstract: A wave soldering machine is configured to perform a wave soldering operation on a printed circuit board. The wave soldering machine includes a housing and a conveyor coupled to the housing. The conveyor is configured to deliver a printed circuit board through the housing. The wave soldering machine further includes a wave soldering station coupled to the housing. The wave soldering station includes a solder pot having a reservoir of solder material, a flow duct positioned in the reservoir of the solder pot, and a wave soldering nozzle assembly coupled to the flow duct. The wave soldering nozzle assembly has a solder distribution baffle configured to create a solder wave. The wave soldering nozzle assembly is configured to control a width of the solder wave through the solder distribution baffle to produce a maximum width solder wave and a minimum width solder wave.

Abstract: A hemostatic composition is provided. The hemostatic composition includes a hemostatically effective amount of a hemostatic agent that includes a nanoparticle and a polyphosphate polymer attached to the nanoparticle. Also provided are medical devices and methods of use to promote blood clotting.

Abstract: An example method of controlling a short circuit welding process includes: setting a heat target for at least a portion of a short state; monitoring output parameters during the short state; calculating a measured heat from the measured output parameters; comparing the measured heat and the heat target; adjusting a pinch current in a subsequent short state in response to at least one comparing from at least one previous short state; and repeating these actions.

Abstract: Various embodiments of the present disclosure provide a combustion-powered fastener-driving tool including multiple combustion chambers and/or usable with fuel canisters of varying lengths.

Abstract: Segmentation or other classification of digital pathology images with a deep learning model allows for sophisticated spatial features for cancer diagnosis to be extracted in an automated, fast, and accurate manner. A tiered analysis of tissue structure based in part on deep learning methods is provided. First, tissues depicted in a digital pathology image are segmented into cellular compartments (e.g., epithelial and stromal compartments). Second, the heterogeneity in the different cellular compartments are examined based on a clustering algorithm. Tissue can then be characterized in terms of inertia (or other spatial measures or features), which can be used to recognize disease. In some instances, multidimensional inertia (i.e., inertia computed in different cellular compartments or clustered components) can be used as an indicator of disease and its outcome.

Abstract: A welding system has a wire feeder having an adjustable lift point. The wire feeder includes a wire supply source configured to supply welding wire, a wire drive assembly configured to feed wire to a welding gun from the spool, and a support base. The wire supply source and the wire drive assembly are supported by the base. A lift member is connected to the support base and is selectively movable in at least one direction with respect to the support base to enable adjustment of the lift point of the wire feeder.

Abstract: Isolated polypeptides having enhanced affinity for a PDGF receptor and/or a VEGF receptor are provided. Compositions comprising the polypeptides and methods of use thereof are also provided.

Abstract: An edge protection system including a first expandable armoured joint to protect a first joint extending in a first direction, a second expandable armoured joint to protect a second joint extending in a second direction and an intersection module including a cover plate located at an intersection of the first expandable armoured joint and the second expandable armoured joint.