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Class 219/137PS - Power supply


Subclass of Class 219 - Electric heating
No. of patents: 330
Last issue date: 04/23/2013


1                  
NumberTitleIssue Date
8426773Dual power pin connector assembly for a MIG welding machine
A dual power pin connector assembly for connecting both a MIG welding gun and a spoolgun to a welding machine. The dual power pin connector is comprised of a busbar portion that electrically and mechanically couples the positive output terminal of the welding machin...
04/23/2013
8395085Wire feed speed referenced variable frequency pulse welding system
A pulsed waveform welding operation is implemented by reference to a commanded wire feed speed set by an operator. The wire feed speed is set on a wire feeder, and a signal representative of the commanded wire feed speed is applied to a power supply. The power suppl...
03/12/2013
8389900Method for welding a workpiece
The invention describes a method for welding a workpiece (16) with a consuming welding wire (13), the latter being moved substantially towards the workpiece (16) by a wire feeder (11) during a welding process, wherein a process is started...
03/05/2013
8373093Method and system to increase heat input to a weld during a short-circuit arc welding process
A method and a system to increase heat input to a weld during an arc welding process. A series of electric arc pulses are generated between an advancing welding electrode and a metal workpiece using an electric arc welding system capable of generating an electric we...
02/12/2013
8350189Method of making a metal art object
A method of making a metal art object using a MIG welder to form small and large end puddles having a primarily gold or blue sheen or a center gold dot formed by using combinations of a strip of selected metal and a wire of a selected metal; selectively tilting a su...
01/08/2013
8101886Welding article and welding method of carrying out an alternating current arc welding
A welding method of carrying out an alternating current arc welding by switching polarities of a voltage applied between a wire and workpieces when weld-connecting the workpieces to each other by use of the wire, the workpieces including an aluminum cast material an...
01/24/2012
8049140Pulse arc welding control method and pulse arc welding device
Disclosed here is a pulse welding control method and a pulse arc welding device capable of improving arc stability, and decreasing the amount of spatters. The structure contains arc short-circuit judging section (13) for judging a welding state; setting secti...
11/01/2011
7989732Method of AC welding using a flux cored electrode
A method of AC welding that includes the step of supplying AC current with a given waveform from a power source to an advancing electrode and workpiece. The AC current is used to melt the electrode and to thereby deposit metal from the electrode onto the workpiece. ...
08/02/2011
7928340Control method for arc welding apparatus and arc welding apparatus
A control method for an arc welding apparatus having a function of prohibiting detection of neck based on a change amount of welding voltage and an arc welding apparatus using the method. Thus, since neck determination can be carried out accurately by preventing wro...
04/19/2011
7528345Power supply apparatus for welder
A welder power supply apparatus (10) includes an inverter (20), which is driven intermittently when an electrode (34) and a workpiece (36) are separated from each other and no arc is being generated between them, whereby power loss genera...
05/05/2009
7397015Metal cored electrode for open root pass welding
A method and apparatus of forming a root bead in a gap between spaced ends of at least one workpiece. The gap includes an open root. A metal cored electrode having a metal sheath and core materials is used to for the root bead in the open root. The core materials in...
07/08/2008
7371994Buried arc welding of integrally backed square butt joints
Buried arc welding is employed to fuse together a first component, a second component, and a third component or an underlying portion of the second component, the first and second components in butting relationship along a butting joint and the third component or un...
05/13/2008
7372711Circuit and method for reducing voltage spikes due to magnetizing current imbalances and power converter employing the same
For use in a power converter having parallel power trains, a circuit for, and method of, reducing voltage spikes due to magnetizing current imbalances in the power trains and a power converter incorporating the circuit or the method. In one embodiment, the circuit i...
05/13/2008
7361441Color toner, and full-color image-forming method
A yellow toner in which, in a spectral-distribution diagram in which the reflectance (%) is plotted as ordinate and the wavelength (nm) as abscissa, the reflectance determined for a toner in a state of powder ranges from 15% to 20% at a wavelength of 500 nm and rang...
04/22/2008
7360675Wire bonder for ball bonding insulated wire and method of using same
An electrical contact device is provided for electrically grounding an uninsulated end-portion of insulated wire stored on a spool driven by a device comprises the following. An electrical connector fixes to the spool and is configured to receive an electrical conne...
04/22/2008
7358458Methods and apparatus for tactile communication in an arc processing system
Systems and methods are presented for tactile communication with an operator in an arc processing system, in which a tactile device is mechanically coupled with a handheld torch to provide tactile messages to the operator according to information related to the syst...
04/15/2008
7351933Method and apparatus for controlling a welding system
A method and apparatus for controlling a welding-type power supply includes providing a current wave form having an arc current portion and a short circuit current portion. An arc state is entered by retracting a welding wire, and a short circuit state is entered by...
04/01/2008
7335853Method for orbital welding using a pulsed current
A method for the orbital welding of tubular elements held in abutment comprising the steps of striking an arc at a strike point with an orbital welder between an electrode and a seam formed by a first tubular element and a second tubular element, held in abutment wi...
02/26/2008
7335852Method and apparatus for welding
A method and apparatus for MIG welding is disclosed. When in an ac mode the output is unbalanced, or the balance may be controlled. The balance may be controlled to provide a desired deposition rate and /or to obtain a desired dilution. The frequency may be any freq...
02/26/2008
7322507Transducer assembly, capillary and wire bonding method using the same
A transducer assembly and wire bonding method has a vibration unit for generating an ultrasonic wave. A body section is coupled to the vibration unit for transferring the ultrasonic wave. A tapered horn is coupled to the body section for transferring and concentrati...
01/29/2008
7301123Method for modifying or producing materials and joints with specific properties by generating and applying adaptive impulses a normalizing energy thereof and pauses therebetween
A method of impulse treatment which modifies at least one specified property of a material or object (such as a welded joint), or produces a material or object with at least one specified physical, mechanical or structural property, by adaptively controlling an impu...
11/27/2007
7288741Arc welder
An arc welder comprising: a rectifier circuit 2 which rectifies an alternating current 1 to a direct current; an inverter circuit 3; a transformer 4; a second rectifier circuit 5 which rectifies an output of the transformer 4
10/30/2007
7288737Laser/MIG hybrid welding process with a high wire speed
Methods for hybrid laser/MIG welding processes. A bevel formed between the edges of material to be welded together is partially filled with molten metal. The molten metal is delivered in the form of a filler wire, which is melted by a combined electric arc and laser...
10/30/2007
7271365System and method for pulse welding
Systems and methods are provided for pulse welding, in which a welding signal is provided to an electrode in series of pulse welding cycles, where the amount of energy applied to the electrode in each cycle is determined and a pulse is provided to initiate a transfe...
09/18/2007
7265320Method and system for reducing spatter in short-circuit transfer gas shielded arc welding
A method for reducing spatter in the short-circuit transfer gas shielded arc welding is disclosed. In this method, the resistance changing rate or the impedance changing rate of the welding circuit loop is detected for estimating the diameter of the short-circuit li...
09/04/2007
7256368Welding and tack welding method involving the use of a non-fusing electrode
The invention relates to a welding method involving the use of a non-fusing electrode (12) according to which the electrode (12) is provided with power from a power source once the arc (11) between the electrode (12) and the workpieces (
08/14/2007
7244904Metal-protective gas-joint with changeable polarity
A method of gas-shielded metal arc joining using a consumable electrode having an alternating polarity (GMA-AC). A shielding gas containing helium is used to improve process stability and working speed. ...
07/17/2007
7235760AC pulse arc welding method
In accordance with an AC pulse arc welding method, a periodic welding current is applied, that includes, for a pulse cycle, negative current in electrode negative polarity and positive current in electrode positive polarity. Then, a negative current rate is set by a...
06/26/2007
7229727Color toner, and full-color image forming method
A yellow toner in which, in a spectral-distribution diagram in which the reflectance (%) is plotted as ordinate and the. wavelength (nm) as abscissa, the reflectance determined for a toner in a state of powder ranges from 15% to 20% at a wavelength of 500 nm and ran...
06/12/2007
7227099System and method for improving the productivity of a welding shop
Methods of controlling an arc welding shop. In the shop, several welding torches are used and each torch is supplied with consumable wire. The wire moves at a wire speed and is subjected to an electrical current. For each torch, either an average wire speed or an av...
06/05/2007
7217904Electric arc welder and method for controlling the welding process of the welder
An operating system is provided for an electric arc welder including a high switching speed inverter power source for creating an arc voltage and arc current between an electrode and a workpiece. This operating system regulating the arc voltage to provide a voltage ...
05/15/2007
7201179Modular fluid supply system
A modular fluid supply system for use with a liquid supply source includes a plurality of container packs, a fluid delivery line in fluid communication with the containers of the packs, and a controller. Each container pack includes at least one container that conta...
04/10/2007
7189941Process for making heterogeneous joints under shielding gas
In joining heterogeneous materials that differ in their melting points, a shielding gas mixture with active gas content is utilized. In particular, the shielding gas mixture contains helium and active gasses in the vpm range (0.005 to 0.5% by volume). These shieldin...
03/13/2007
7187569Signal generation apparatus and method for seafloor electromagnetic exploration
An apparatus for generating electronic signals for application in subsea electromagnetic exploration. A surface generated high-voltage low-current source signal stabilized at a first frequency is supplied to a deep-tow vehicle (18) via an umbilical cable (...
03/06/2007
7176410Method of welding motor vehicle elements, in particular tailored blanks
An electric-arc welding process for assembling parts that are components of a motor vehicle, in which a consumable wire is used that is subjected to a cyclic mechanical movement. The wire is moved closer to and then further away from the parts to be welded so as to ...
02/13/2007
7168165Fabrication of electrical medical leads employing multi-filar wire conductors
During fabrication of an electrical medical lead, a cut end of a stranded wire conductor is subjected to electrical current sufficient to heat and weld the strands together upon discharge of a high voltage between the cut end and a ground metal plate formed of a mat...
01/30/2007
7166818Tandem electrode welder and method of welding with two electrodes
An electric arc welding apparatus comprising at least a first consumable electrode and a second consumable electrode movable in unison along a welding path between the edges of two adjacent, mutually grounded plates, a first power supply for passing a first welding ...
01/23/2007
7164095Microwave plasma nozzle with enhanced plume stability and heating efficiency
Systems and methods for generating relatively cool microwave plasma. The present invention provides a microwave plasma nozzle that includes a gas flow tube through which a gas flows, and a rod-shaped conductor that is disposed in the gas flow tube and has a tapered ...
01/16/2007
7147980Toner and image forming apparatus
A toner having toner particles each comprising at least a binder resin, a wax, and a colorant is used in an image forming apparatus which has a fixing means comprising a belt-shaped heating member and a pressurizing member. The binder resin contains a resin formed b...
12/12/2006
7140106Process to restore and refurbish an engine turbo charger or exhaust part
A process to restore and refurbish an engine part or accessory. The process includes the steps of visually inspecting the pair or accessory for cracks, erosion or broken areas. Selected areas of the part or accessory are then machined or drilled off. The selected ar...
11/28/2006
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