Class / Patent application number | Description | Number of patent applications / Date published |
219108000 | Systems of current supply | 52 |
20080302766 | Resistance Welding Machine Pinch Point Safety Sensor - There is described a continuity sensing system that operates with a resistance-welding machine. This sensing system measures continuity between the welding electrodes after the welding machine has been initiated and prevents application of high electrode force between the electrodes if the continuity measured is below a reference level. The result is a fully passive system that prevents serious high electrode force that would cause serious pinch-point injury to the operator of the welder. The present invention also includes methods of controlling pneumatic systems on resistance-welding machines to apply low force between welding electrodes until continuity between the welding electrodes has been detected. | 12-11-2008 |
20100072176 | RESISTANCE WELDING APPARATUS AND RESISTANCE WELDING METHOD - A resistance welding apparatus is provided with: a pair of electrode chips; a power supply device for supplying the electrode chips a welding current; and a spattering detecting device that detects a spattering. The power supply device supplies to the electrode chips a preset welding current until the spattering is detected. The power supply device supplies a current on which an additional current is added to the preset welding current, after the spattering is detected, until a preset energizing time expires. | 03-25-2010 |
20100122968 | METHOD FOR IMPLEMENTING SPATTER-LESS WELDING - A method for optimizing a schedule for impulse welding including generating a weld lobe using a preexisting welding schedule, the schedule prescribing a current, a weld time, and a pressure; identifying an operating window on the weld lobe; analyzing the operating window, the analysis including determining a maximum time range of the operating window, and determining a maximum current range of the operating window; until (i) the determined maximum time range of the operating window is greater than a predetermined percentage of the prescribed weld time of the schedule and (ii) the determined maximum current range is greater than the prescribed current of the schedule, creating additional weld lobes by varying the pressure and repeating the identifying an operating window and the analyzing the operating window steps; and selecting, within the operating window satisfying conditions (i) and (ii), a second schedule including a second weld time, a second current, and a second pressure. | 05-20-2010 |
20100206852 | Forced Pressure Power Supply Torch - A welding torch | 08-19-2010 |
20100258535 | STEEL PIPE MATERIAL WELD ZONE HEATING APPARATUS AND METHOD - This invention provides a steel pipe material weld zone heating method and apparatus for melting and welding the weld zone of a steel pipe material that during continuous induction heating and welding of moving steel pipe material as the material being heated controls temperature distribution and molten steel shape and weld frequency fluctuation with high accuracy and high efficiency, irrespective of the shape of the heated region of material being heated or the material properties of the material being heated, which comprises a first imaging step in which first imaging means | 10-14-2010 |
20100276401 | WELDER - The system provides both a portable and appliance welding system. It can be use in the shop and field. In either location it can be plugged in or battery driven. When plugged in it can weld while charging simultaneously offering | 11-04-2010 |
20100282717 | WELDING ASSEMBLY AND METHOD - A welding assembly including a current generator, an electrode electrically coupled to the current generator, the electrode including a first engagement surface, and a workpiece including at least two members, wherein at least one of the members includes a second engagement surface, defines a recess in the second engagement surface, and is electrically coupled to the current generator. | 11-11-2010 |
20110000893 | SYNERGISTIC WELDING AND ELECTRODE SELECTION AND IDENTIFICATION METHOD - A method of identifying and selecting welding electrodes and welding output parameters on a welding power source is provided. The method includes identifying electrodes and/or electrode packaging with distinct colors and/or patterns which correspond to properties of the electrode. The method also may include employing distinguishable identifying markings on a power supply which correspond to the electrodes to be used to allow for easy setting of output parameters. | 01-06-2011 |
20110079586 | Method and Apparatus for Manufacturing Coreless Armature - A method for manufacturing a coreless armature, which can prevent a short circuit of adjacent terminal layers when resistance-welding the terminal layers, is provided. In a method for manufacturing a coreless armature, terminals | 04-07-2011 |
20110089147 | BELT WELDING APPARATUS AND METHOD - A handheld welder is provided for welding together parts of a workpiece. The welder may include a pair of three-part clamps with spring-loading so as to temporarily hold the parts of the workpiece in place before tightening the clamps. A housing can be provided for housing batteries or at least part of a power cord and for structurally supporting a heater element during welding. The housing can include radially-extending screws that are slidably provided within slots of a sleeve to allow the housing to axially move within the sleeve, so that the heater element may be at least partially retracted into the sleeve once the welding operation is completed. | 04-21-2011 |
20110114607 | INCREMENTAL HYBRID WELDING SYSTEMS AND METHODS - Embodiments of a welding power supply include an engine adapted to drive a generator to produce a first power and a energy storage device adapted to discharge energy to produce a second power. The welding power supply also includes control circuitry adapted to detect a commanded output. The control circuitry is adapted to meet the commanded output by controlling access to power from the energy storage device to produce the second power when the commanded output is below a first predetermined load level. The control circuitry is further adapted to meet the commanded output by controlling access to power from the engine and the energy storage device to produce the first power and the second power when the commanded output is above a second predetermined load level. | 05-19-2011 |
20110180517 | METHODS AND SYSTEMS FOR BINDING A WIRELESS CONTROL DEVICE TO A WELDING POWER SOURCE - A welding system including a welding power source, a receiver, and a wireless control device are provided. The receiver is adapted to communicate information to and from the welding power source. The wireless control device and/or the receiver is adapted to learn a first address specific to the receiver and the wireless control device pair to exclusively bind the welding power source to the wireless control device during a learning mode. Such a binding may occur when the wireless control device is located a distance from the welding power source that is below a preset threshold. The wireless control device controls operation of the welding power source when the wireless control device is bound to the welding power source. | 07-28-2011 |
20110180518 | RESISTANCE WELDING METHOD - A resistance welding method, which resistance-welds a pair of workpieces by gripping the workpieces with a pair of electrode tips under a prescribed welding pressure, and supplies a welding current through the electrode tips to the workpieces, includes the steps of detecting a change in an amount of expansion of a nugget produced in the workpieces, along a direction in which the electrode tips grip the workpieces therebetween, determining whether the detected change is smaller than a threshold value or not, and gradually increasing the welding current flowing through the workpieces after the detected change is judged as being smaller than the threshold value. | 07-28-2011 |
20110220619 | POSITIONAL MONITORING SYSTEMS AND METHODS FOR WELDING DEVICES - Welding systems including a welding device adapted to be utilized in a welding operation to establish a welding arc and a position detection system adapted to measure a parameter indicative of a position of the welding device are provided. Such welding systems may also include a controller adapted to receive feedback from the position detection system regarding the position of the welding device in at least two axes and to selectively transition control of the welding system between a first set of operational parameters and a second set of operational parameters based on changes in the received feedback during a welding operation. | 09-15-2011 |
20110253681 | METHOD OF CONTROLLING AN INDENTATION DEPTH OF AN ELECTRODE INTO A METAL SUBSTRATE DURING WELDING - A method of controlling an indentation depth of an electrode into a metal substrate during formation of a weld includes selecting a weld force, current, duration, minimum indentation depth, and maximum indentation depth, contacting the substrate with the electrode to apply the force to the substrate, supplying the current to the electrode to initiate formation of the weld according to a first condition in which the depth is less than the minimum, a second condition in which the depth is greater than or equal to the minimum and less than or equal to the maximum, and a third condition in which the depth is greater than the maximum, and comparing the depth, minimum, and maximum. For the first condition, duration is changed. For the second condition, each of the force, current, and duration is maintained until the weld is substantially formed. For the third condition, current ceases to be supplied. | 10-20-2011 |
20110290766 | SYSTEM AND METHOD FOR FLASH-WELDING - An welding system is disclosed. The welding system may have a power supply, a forging arrangement configured to hold and move ends of two components to be welded together, and a plurality of contacts connecting the power supply to the two components. The welding system may also have a controller in communication with the power supply and the forging arrangement. The controller may be configured to regulate the power supply to selectively operate in a constant voltage mode and a constant current mode during different stages of a single weld cycle, and to actuate the forging arrangement to move the ends of the two components together during a final stage of the single weld cycle. | 12-01-2011 |
20110309053 | SYSTEM AND METHOD FOR LIMITING WELDING OUTPUT AND ANCILLARY FEATURES - A system and method for limiting welding output and ancillary features is provided. In one embodiment, a portable generator system includes a power generator configured to generate electrical power appropriate for welding or plasma cutting. The generator system also includes power conversion circuitry coupled to the power generator and configured to receive power from the power generator and to provide output power. The generator system includes at least operator accessible input for receiving an operator input parameter. The generator system also includes an output power limiting device not adjustable by the operator and configured to selectively limit output power from the power conversion circuitry. | 12-22-2011 |
20110309054 | MODULAR DIRECT CURRENT POWER SOURCE - A modular direct current power source is provided. One welding power supply system includes a plurality of hysteretic buck converters coupled in parallel. The hysteretic buck converters are configured to receive a common input and to provide combined output power to a common load based upon the common input. | 12-22-2011 |
20110309055 | WELDING POWER SUPPLY WITH POWER TAKE-OFF SHAFT - A welding power supply having a power take-off shaft is provided. The welding power supply has an engine having an output shaft coupled a generator, where the engine shaft drives the generator to produce an electric current. The engine shaft further extends through the generator and is coupled to the power take-off shaft. One of a plurality of auxiliary attachments may be attached to the power-take off shaft and may be driven by the power-take off shaft. | 12-22-2011 |
20120012561 | WELDING PARAMETER CONTROL - In certain embodiments, a wireless sensor module includes a motion or position sensor configured to detect a defined motion or position of a welding operator. The wireless sensor module also includes memory circuitry configured to store the defined motion or position and an adjustment of an operating parameter of a welding system which corresponds to the defined motion or position. A processor of the wireless sensor module is coupled to the motion or position sensor and the memory circuitry, where the processor is configured to retrieve the adjustment of the operating parameter from the memory circuitry upon detection of the defined motion or position by the motion or position sensor. The wireless senor module further includes a wireless communication device coupled to the processor and configured to transmit the adjustment of the operating parameter to the welding system. | 01-19-2012 |
20120024825 | PULSE ELECTRIC-CURRENT BONDING METHOD AND PULSE ELECTRIC-CURRENT BONDING APPARATUS - A pressure surface of a first metal material for receiving a pressure therethrough is fabricated to have a directional component parallel to a pressure-application direction and a directional component perpendicular to the pressure-application direction, and an electrically-conductive core is fabricated to have a surface along the pressure surface and a surface perpendicular to the pressure-application direction. An assembly comprising the first metal material, the second metal material and the core is set in a pulse electric-current bonding unit to perform a pulse electric-current bonding process. | 02-02-2012 |
20120067852 | REMOTE OUTPUT CONTROL FOR AN ELECTRIC WELDER POWER SUPPLY - A remote output control for controlling the output level of an electric welder power supply at a remote location and providing a source of isolated electrical power at the remote location is disclosed. The remote output control includes a water-proof, sealed housing fitted with an electrical receptacle and a potentiometer. A cable construction is electrically connected to the electrical receptacle and the potentiometer at one end and is provided with electrical plugs at the opposite end. A molded over wire y-adaptor is also included in the cable construction. | 03-22-2012 |
20120097644 | MODULAR DATA OVER POWER CONVERTER FOR WELDING POWER SUPPLY - An external control module is provided for interfacing a welding power supply with a wire feeder. The welding power supply is designed to exchange control signals, feedback signals, and so forth over a control cable when coupled to a standard wire feeder. However, the external control module allows the power supply to be used with a wire feeder that is designed to exchange data combined in a single cable with welding power. The module is coupled to welding and workpiece cables from the power supply, and to a control cable, such as from a multipin connector on the power supply. The module is further coupled to the wire feeder via a welding cable. The module combines data with welding power for transmission to the wire feeder, and extracts data from welding power for application to the power supply. | 04-26-2012 |
20120125896 | RESISTANCE WELDING A POROUS METAL LAYER TO A METAL SUBSTRATE - An apparatus and method are provided for manufacturing an orthopedic prosthesis by resistance welding a porous metal layer of the orthopedic prosthesis onto an underlying metal substrate of the orthopedic prosthesis. The resistance welding process involves directing an electrical current through the porous layer and the substrate, which dissipates as heat to cause softening and/or melting of the materials, especially along the interface between the porous layer and the substrate. The softened and/or melted materials undergo metallurgical bonding at points of contact between the porous layer and the substrate to fixedly secure the porous layer onto the substrate. | 05-24-2012 |
20120145677 | RESISTANCE WELDING SYSTEM - A resistance welding system includes a plurality of first electrodes, and a second electrode which is provided facing the plurality of first electrodes and which is electrically connected to a welding power source. The welding system welds a plurality of weld members sandwiched between the plurality of first electrodes and the second electrode by resistance welding. A current feed roller which is electrically connected to the welding power source and which rotates while successively contacting the plurality of first electrodes for successively feeding current to the plurality of first electrodes and a pressing device which is designed to move in the rolling direction together with the current feed roller and presses the current feed roller so as to successively apply welding pressure to the plurality of weld members W are included in the resistance welding system. | 06-14-2012 |
20120211472 | WELDING SYSTEM WITH ROTATIONAL SPEED CONVERTER FOR AUXILIARY POWER GENERATOR - A welding system includes an engine having a rotational power output, an AC welding generator operatively connected to the rotational power output for generating an AC current, a rectifying circuit electrically connected to the AC welding generator for converting the AC current to a DC output for welding, an auxiliary power generator for supplying AC power to an auxiliary electrically powered device, and a rotational speed adjuster coupling the auxiliary power supply to the rotational power output and configured to drive the auxiliary power supply at a different rotational rate than a rotational rate of the rotational power output. | 08-23-2012 |
20120241417 | WELDING POWER SUPPLY WITH CONTROLLED AUXILIARY POWER - A system includes a welding power supply unit and control circuitry. The welding power supply unit includes an auxiliary power supply configured to supply power to an auxiliary power load connected to the auxiliary power supply. The control circuitry is configured to detect a voltage received by the auxiliary power load from the auxiliary power supply, compare an output voltage generated by the auxiliary power supply with the voltage received by the auxiliary power load, and apply a correction factor to the output voltage from the auxiliary power supply based at least in part on the comparison of the output voltage generated by the auxiliary power supply and the voltage received by the auxiliary power load. | 09-27-2012 |
20130020288 | System and Method of Welding a Workpiece - A system and method of welding a workpiece. A predetermined current may be applied through electrodes that engage the workpiece. A resistance profile may be generated based on the predetermined current. A weld profile may be selected based on the resistance profile. The weld profile may then be executed to weld the workpiece. | 01-24-2013 |
20130334178 | Method for Operating a Welding Converter and Apparatus - The disclosure describes a system that uses an active filter connected to phases of a three-phase power grid in parallel with a resistance welding apparatus in order to bring an input current of a welding converter closer to a sinusoidal shape. | 12-19-2013 |
20160167159 | EXTENSION ARM FOR ATTACHMENT TO A RESISTANCE WELDING HAND PIECE | 06-16-2016 |
219109000 | With indicator (e.g., recorder) | 5 |
20130075371 | NON-DESTRUCTIVE EVALUATION OF WELDED JOINTS OF BAR WOUND STATOR UTILIZING INFRARED AND THERMAL METHODS - A method and system for non-destructive evaluation of one or more welds of a stator includes activating the stator welds using an electrical current; recording radiometric thermal images of the welds over time; and analyzing a temperature-time profile of a weld to qualify the weld by one or more of estimating the size of the weld, determining if the temperature of the activated weld has exceeded a predetermined temperature at a predetermined time, or comparing the temperature-time profile of the weld to a reference. The stator may be configured as a bar wound stator. A mask may be applied to the stator to reduce reflections or emissions from non-weld thermal sources. | 03-28-2013 |
20130334179 | Method for Operating a Resistance Welding Device - The service life of the power semiconductors of a resistance welding device largely determines the reliability of the installation in operation. The disclosure proposes a method for monitoring the remaining service life of power semiconductors that are exposed to current during the operation of a resistance welding device. The fact that, when there is a change of load of at least one power semiconductor, the change in a power semiconductor parameter is determined and the service life of the power semiconductor is determined while taking into consideration a setpoint selection that is representative of the remaining service life allows the reliability of the installation to be drastically improved. | 12-19-2013 |
20140034617 | SYSTEMS, METHODS, AND APPARATUSES FOR MONITORING WELD QUALITY - An arc welder including an integrated monitor is disclosed. The monitor is capable of monitoring variables during a welding process and weighting the variables accordingly, quantifying overall quality of a weld, obtaining and using data indicative of a good weld, improving production and quality control for an automated welding process, teaching proper welding techniques, identifying cost savings for a welding process, and deriving optimal welding settings to be used as pre-sets for different welding processes or applications. | 02-06-2014 |
20140061169 | USER INTERFACE FOR WELDING EQUIPMENT AND SYSTEMS - A user interface for welding equipment is disclosed. The user interface comprises an architecture which organizes different types of welding controls into pre-defined categories or zones. The zones are arranged in a layout on the interface to provide access to easily see and adjust important weld parameters, particularly weld heat. Main displays and basic heat controls are provided in an upper portion of the display, while less frequently used controls are provided lower in the display, and to the side of the display. Electronic and graphic displays are arranged in levels, providing a limited number of layers, and can be associated with multi-dimensional navigational devices and home buttons to allow for easy navigation through the display. | 03-06-2014 |
20150108100 | Method for Monitoring and Controlling a Quality of Spot Welds - The disclosure concerns a method for monitoring and/or controlling a quality of spot weldings of a processing island, comprising at least two welding controls on one or more workpieces, wherein the method is based on a comparing of the measured values and an outputting of a fault message taking place from a central control of the processing island, the central control being in communicating connection with every welding control, in order to control them appropriately in dependence on all of the measured values and the predefined tolerance margin, the welding controls being in communicating connection with one another. | 04-23-2015 |
219110000 | Controlled in response to current, voltage, or temperature | 8 |
20090206061 | Method of controlling the fusing and fusing apparatus - A method of controlling fusing by executing a process of peeling a coating by correspondingly controlling the electric current flowing into a coated electric wire | 08-20-2009 |
20090250440 | OUT-OF-PHASE ELECTRICAL WELDER AND PROCESS - Electrical welding process and device using intersecting, electrically contacting welding elements are disclosed. The intersecting welding elements are powered out of phase from each other, such that there is no short circuiting around the welding elements being heated and no electrical insulation is needed between intersecting welding elements. Current directors can be used to alternatingly direct the current through the intersecting welding elements. The process and device can be used to weld various workpieces, including thermoplastic binders and folders. | 10-08-2009 |
20090261076 | METHOD AND WELDING APPARATUS FOR THE DETERMINATION OF THE STRENGTH OF THE WELDING CURRENT TO BE USED IN THE WELDING OF CONTAINER BODIES - For the determination of the welding current to be used for the resistance welding of the overlap seam of container bodies, welding with a test body is carried out with a changing strength of welding current which in the test body produces a varying welding of the seam. The current strength varies from welding of this seam with a too high temperature to welding with a too low temperature. Along with this the welding current strength used in the welding is determined so that it is further determined at which point of the seam the welding has been accomplished and with what strength of welding current. By means of a mechanical and/or optical investigation of the welded seam it can then be easily determined where the seam has been correctly welded for the series production of container bodies from the same sheet material as the test bodies. When such a point or such a region of the seam is known the welding current used in the test welding can be taken as the welding current for serial production. | 10-22-2009 |
20090277880 | Method and System for Welding Workpieces - A method of welding two or more workpieces employing a motion-controlled electrode that reduces temperature and residual stresses at a workpiece-to-electrode interface is disclosed. During a first period of time, a first electrode force is applied to the workpieces to be welded, and a weld current is applied that causes heating of an associated workpiece-to-workpiece faying surface, the first electrode force being applied at a first electrode stroke. A temperature of the faying surface indicative of a weld nugget formation thereat is determined, and in response thereto the electrode force is reduced to a second level during a second period of time while maintaining a constant electrode stroke. During a third period of time, the electrode force is further reduced to a third level while simultaneously reducing the electrode stroke to a second level. Welding is stopped after the third period of time, resulting in a weld joint having reduced residual stresses and reduced likelihood of stress crack formation. | 11-12-2009 |
20100065533 | Adaptive Resistance Weld Control - A resistance weld control employing a model-based run-to-run estimate of load impedance, giving the weld control system the ability to maintain and predict the expected impedance of a successfully completed resistance spot weld, and to detect when the load impedance observed by the resistance weld control is within a target neighborhood of that impedance predicted by the model-based run-to-run estimate of load impedance. A target weld current and a range of weld times may be specified, such that the actual weld time employed in making the resistance spot weld is responsive to the time required to complete the contact preparation phase. Further, a fixed weld time and a range of target weld currents may be specified to make a resistance spot weld, such that the actual target weld current employed is responsive to the time required to complete the contact preparation phase of the weld. | 03-18-2010 |
20110220620 | WELDING POWER SUPPLY WITH REGULATED BACKGROUND POWER SUPPLY - Embodiments of a welding power supply including a main power supply and a background power supply are provided. The main power supply includes a first transformer that supplies a first power output to welding electrodes for use in a welding operation. The background power supply includes a secondary transformer that charges an energy storage device to a regulated voltage level and is adapted to discharge the energy storage device by a controlled amount to supply a second regulated power output to the welding electrodes for use in the welding operation when a transient voltage event occurs. | 09-15-2011 |
20140076860 | Sensing Apparatus for Resistance Welding and Related Method - A sensing system measures the voltages between the electrodes of a resistance welding apparatus. The resistance welding apparatus has a pair of welding electrodes configured to come into electrical contact to effect a weld, a weld controller and a controller rectifier. The sensing system includes a voltmeter for measuring a voltage between the pair of electrodes and a sensor for sending a signal to initiate welding to the weld controller based on the measured voltage between the pair of welding electrodes. Related methods are also described. | 03-20-2014 |
20150336200 | Welding Controller and Method for Controlling a Welding Operation - A welding controller for controlling a welding operation includes a controller configured to initiate cleaning of a welding tool in a manner adapted to a change of parameters which change in a production operation in a production line in which the welding tool is included. | 11-26-2015 |
219112000 | Stored energy discharge (e.g., inductive) | 5 |
20110114608 | ENERGY STORAGE CADDY FOR A WELDING SYSTEM - Embodiments of energy storage caddies adapted to couple to a welding power supply are provided. The energy storage caddies may include an energy storage device, a charger, control circuitry, and power conversion circuitry. Certain control circuitry may be adapted to control the energy storage device to discharge to provide a direct current (DC) voltage output to the welding power supply when a weld load demand is detected, to monitor a charge level of the energy storage device, and to alert a user to an error when the charge level of the energy storage device falls below a predetermined limit. | 05-19-2011 |
20150076121 | Two-Stage Switch-Mode Power Supply for Drawn-Arc Stud Welding - A drawn arc welding device includes a welding tool, and an energy storage device coupled to a power source. A charging circuit is connected to the energy storage device replenishing the storage device. A discharge circuit is connected to the welding tool and energy storage device. The discharge circuit regulates and adjusts a welding current of the welding tool to a specified amount. Also disclosed is a process that includes charging the energy storage device, actuating the welding tool, energizing a pilot arc current, lifting the weld stud off a workpiece to draw the pilot arc, energizing a welding arc wherein the discharge circuit regulates a welding current of the welding tool to a specified amount, and plunging the weld stud into the workpiece and turning off the discharge circuit. | 03-19-2015 |
20150328711 | RESISTANCE-WELDER POWER SOURCE AND RESISTANCE WELDER USING THE SAME - Provided is a power source for energizing a resistance welder, including: one or a plurality of lithium-based secondary batteries ( | 11-19-2015 |
219113000 | Condenser discharge | 2 |
20140374389 | CAPACITOR-TYPE WELDING DEVICE AND CAPACITOR-TYPE WELDING METHOD - An economical capacitor-type welding device and capacitor-type welding method that have a small power loss, that can be made compact, and that reliably control a charging circuit without being affected by the inductance of a charging path. In an exemplary capacitor-type welding device and an exemplary capacitor-type welding method of the invention, a bypass switching element having a forward-blocking function is connected in parallel to output terminals of a charging circuit, and the bypass switching element is brought into a conduction state to allow a backflow current, which is caused to flow by a magnetic energy stored in the inductance of a primary winding or an inductor included in the charging path, to bypass the charging circuit. A discharge switching element is brought into a conduction state after the bypass switching element enters the non-conduction state and recovers the forward-blocking function. | 12-25-2014 |
20150306698 | Thermal Management for a Super Capacitor Power Supply - A power supply assembly, suitable for use in conjunction with a capacitive discharge welder, comprises an integrated thermal management system. The housing of the power supply assembly allows the integration of ultra-capacitor thermal management with electrical connectivity and mechanical modularity. In the most preferred embodiments of the present invention, aluminum (or other conductive material, such as copper, etc.) channels are shaped and arranged to both act as thermal fin elements for the removal of waste heat while simultaneously serving as an electrical path with a relatively low electrical resistance. The thermal fin assembly may comprise self-isolating insulation elements or the thermal fin elements may be electrically isolated from each other by an electrically insulating material. Airflow within the housing may be directed via fan or other method into the ultra-capacitor wind tunnel to remove heat from the capacitor cylinder itself as well as the thermal conductive fin elements. | 10-29-2015 |
219115000 | Synchronous switching on and off | 1 |
20110155700 | WELD CURRENT GENERATING APPARATUS - A weld current generating apparatus includes a voltage conversion circuit, a control circuit, a switch circuit, and a current output circuit. The voltage conversion circuit receives an AC voltage from an AC voltage input terminal, and converts the AC voltage to a DC voltage. The control circuit receives the DC voltage, wherein the control circuit is capable of setting a weld time, and outputting a control signal for controlling the weld time. The switch circuit receives the control signal, and turns on for the weld time according to the control signal. The current output circuit outputs a continuous weld current when the switch circuit turns on. | 06-30-2011 |
219116000 | With transformer | 3 |
20130008877 | RESISTANCE WELDING HIGH FREQUENCY TRANSFORMER AND SPOT WELDING MACHINE - A resistance welding high frequency transformer and a high frequency resistance welding machine using the same are disclosed. The transformer comprises a magnetic core ( | 01-10-2013 |
20140305913 | RESISTANCE WELDING DEVICE COMPRISING A POWER SOURCE ARRANGED ON A WELDING GUN - The invention relates to a resistance welding device ( | 10-16-2014 |
20150076122 | ARRANGEMENT FOR THE OPERATION OF A WELDING SYSTEM - A welding system includes a first field bus. The welding system further includes a first welding converter, wherein the first welding converter is operatively connected to the first field bus via a first interface. The welding system further includes at least one further component, wherein the at least one further component is operatively connected to the first field bus. The first welding converter is configured to transmit an actuation data to the at least one further component using the first field bus to actuate the at least one further component. | 03-19-2015 |