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| Number | Title | Issue Date |
| 8080761 | Hybrid powered welder An electric arc welder that includes a energy storage device and non-battery power source for the formation of an electric arc. The welder also includes battery charging circuit that controls the charging of the energy storage device by the non-battery power source.... | 12/20/2011 |
| 7952051 | Electronic polarity reversing switch for a multi-process welding power source A system and method, in certain embodiments, sets an output polarity based on a selected process. The system and method may be used to operate a variety of equipment, such as welders, cutters, tools and so forth. In some embodiments, the system and method may includ... | 05/31/2011 |
| 7767933 | Method and apparatus for controlling a short circuit during a MIG welding process Methods and systems for clearing short circuits during a MIG welding process are disclosed. A method may include detecting a short circuit and increasing output current of a power source at a first ramp rate to clear the short circuit. The method further includes in... | 08/03/2010 |
| 7465901 | Power cord system for welding-type devices A system and method for powering a welding-type device from a plurality of distinct outlet configurations is disclosed. The power cord system includes a power cord having a plurality of conductors extending therethrough. An end of the power cord is constructed to en... | 12/16/2008 |
| 7456373 | Welder with front mount fan A welding apparatus having an easily replaceable fan and a method of replacing the fan is disclosed. An opening is formed through the front panel of a welding-type power source to correspond to the profile of a cooling fan. The opening allows the cooling fan to pass... | 11/25/2008 |
| 7429712 | Gas system for welding-type devices A welding-type device and gas system for use therewith are disclosed. The gas system of the welding-type device includes a canister that is constructed to contain a shielding gas therein and is connectable to the welding-type device. The canister is sized to be moun... | 09/30/2008 |
| 7411147 | Gas bottle for welding-type devices A gas bottle for welding-type devices, a shielding gas system, and a method for providing shielding gas to a weld are disclosed. The gas bottle has a valve constructed to be connected to a welding-type device and is preferably formed to fit within a cavity of a weld... | 08/12/2008 |
| 7411154 | Control panel for a welding-type apparatus A welding-type apparatus has a control panel with enhanced viewability. The control panel may include LEDs, backlit LCDs, and other light-emitting indicators whose viewability by a user is enhanced when the control panel is subjected to relatively intense ambient li... | 08/12/2008 |
| 7411153 | Removable panels for a welding-type machine enclosure A hinge arrangement for a welder enclosure includes a door panel having at least one hinge at one end that is engagable in a slot of a base to allow the door panel to move between a maximum closed position to a maximum open position. The hinge and slot arrangement o... | 08/12/2008 |
| 7375305 | System for assembling welding apparatus A welding apparatus having a system to facilitate its assembly. The apparatus is assembled by affixing a pair of molded end panels to a molded base and each of the end panels has a specially constructed receptacle area that is adapted to receive an end of the base. ... | 05/20/2008 |
| 7355141 | Welder with integrated regulator A welder having an internal shielding gas regulator is disclosed. The welder has an internal gas cylinder and an internal regulator disposed in an enclosure. The welder may be equipped with an auxiliary shielding gas cylinder inlet so that a bulk shielding gas cylin... | 04/08/2008 |
| 7339134 | Extension lift truck modification An apparatus for welding, including a lift mechanism for lifting a personnel platform attached to an end of the lift mechanism, a drive system for moving the apparatus, where the drive system includes a DC power source, a set of controls mounted on the platform for ... | 03/04/2008 |
| 7329833 | System for improved high-frequency arc starting of a welding process A welding gun is disclosed that includes an electrode configured to effectuate a welding-type process and a non-conductive nozzle configured to at least partially surround the electrode. The welding gun also includes a conductive casing at least partially surroundin... | 02/12/2008 |
| 7326879 | Apparatus for a welding machine having a cooling assembly mounted to a mid-plane baffle for improved cooling within the welding machine A mid-plane baffle or plate having a fan mounted thereto to dissipate heat within a welding machine is provided. By centrally positioning a baffle and mounting a circulating fan thereto, cooling efficiency is improved thereby enabling more direct cooling of the inte... | 02/05/2008 |
| 7323658 | Method and apparatus for welding and control thereof A method and apparatus for welding includes one or more of a welding type power source, a feedback circuit, a wire feeder and a controller. The controller preferably has an eta control circuit responsive to the feedback. It also has a control loop having a response ... | 01/29/2008 |
| 7319600 | Apparatus for supplying power and liquid crystal display having the same Disclosed are a power supplying apparatus and a LCD having the same that reduces manufacturing cost of a large-scale LCD module and enhances powpower efficiency by integrating an external dc power supply used in a large-scale LCD panel into a LCD panel. A first volt... | 01/15/2008 |
| 7319206 | Method and apparatus for receiving a universal input voltage in a welding power source A method and apparatus for providing a welding current is disclosed. The power source is capable of receiving any input voltage over a wide range of input voltages and includes an input rectifier that rectifies the ac input into a dc signal. A dc voltage stage conve... | 01/15/2008 |
| 7307239 | Welding power supply with laminated bus A method and apparatus for welding with a bus is disclosed. The bus preferably is laminated, with two conductive plates separated by an insulator plate. The bus preferably is disposed in a housing without airflow. ... | 12/11/2007 |
| 7288740 | Welding device having multiple protective covers and connection paths A housing of a welding-type device includes a bezel which encloses a plurality of electrical receptacles and a plurality of terminal posts of the welding-type device. The bezel has a first and a second opening corresponding to each terminal post. The plurality of fi... | 10/30/2007 |
| 7289862 | Methods to support process quality and maintenance during control of an industrial process such as welding A number of methods to support process quality and maintenance during control of an industrial process such as welding are provided. The methods provide, among other things: automatic process limit programming based on runtime data; user-initiated process limit prog... | 10/30/2007 |
| 7288741 | Arc 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 |
| 7283351 | Gas discharge lamp power supply A gas discharge lamp power supply having a base, a pair of opposed side walls extending from the base, and opposed first and second end walls extending from the base between the opposed side walls. The first end wall has a sloped wall extending angularly between the... | 10/16/2007 |
| 7276814 | Environmentally hardened ethernet switch A device for hardening an Ethernet switch is disclosed. The device provides cooling for the switch, and, suppresses electrical transients and electromagnetic interference, which could affect the power supply, and data transmission of the Ethernet switch. Using this ... | 10/02/2007 |
| 7274000 | Power source for high current welding An inverter based power source for electric arc welding where the power source includes a high switching speed inverter for driving the primary side of an output transformer that has a primary circuit with current greater than 250 amperes and a secondary circuit wit... | 09/25/2007 |
| 7272008 | Portable power inverter with pass through device A portable power inverter having a pass through device to facilitate connection and operation of both A.C. and D.C. power consuming devices to a single outlet of a single D.C. power source. Inverter circuitry is electrically coupled to the external D.C. power source... | 09/18/2007 |
| 7268318 | Welding equipment A welding voltage judgment portion 16 of judging to see if a predetermined value of welding voltage inputted from an input device 11 falls within a predetermined certain range is provided, and when the aforementioned welding voltage judgment portion | 09/11/2007 |
| 7250506 | Oligonucleotides and methods for detecting hepatitis C viral nucleic acids The present invention provides methods and compositions for determining the presence and/or amount of HCV nucleic acids in a test sample. In particular, substantially purified oligonucleotide primers and probes are described that can be used for qualitatively and qu... | 07/31/2007 |
| 7238916 | Robotic welding cell unit A portable welding cell unit includes a frame structure in which first and second welding stations are disposed. A robot arm is also provided within the frame. The robot arm can pivot between the first and second welding stations such that a work piece can be welded... | 07/03/2007 |
| 7235759 | Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source A method and apparatus for providing welding type power is disclosed. The power source is capable of receiving any input voltage over a wide range of input voltages and includes an input rectifier that rectifies the ac input into a dc signal. A dc voltage stage conv... | 06/26/2007 |
| 7231317 | Correlating power signatures with automated equipment A method and system for monitoring the activity of a system of one or more electro-mechanical components that receive electrical current from a power supply. The method and system samples an actual current supplied to the electro-mechanical component from the power ... | 06/12/2007 |
| 7220940 | System for welding with multiple arcs A system for welding with a first and second arc between a first and second electrode, respectively, and a common workpiece, where each of the electrodes is driven by a power lead from a single power source. The system comprises an inductor with a core, a center tap... | 05/22/2007 |
| 7214905 | Cover for a welding-type power source A welding system comprising a welding-type power source and a protective cover for the welding-type power source. The protective cover may be comprised of a synthetic fabric and a polymeric fluid barrier. The protective cover may have a member secured to the synthet... | 05/08/2007 |
| 7215542 | Electronic device having heat-dissipating structure for socket An electronic device having a heat-dissipating structure for a socket is disclosed. The electronic device comprises a case, a plurality of electronic components disposed in the case, an airflow inlet disposed at a first side of the case, a socket disposed at a secon... | 05/08/2007 |
| 7209357 | Universal modular power supply carrier A universal modular power supply carrier mounts different sized power supplies within a substantially rectangular body designed for thermal and electromagnetic emissions control. The power supplies are preferably secured within the carrier body. Input connectors may... | 04/24/2007 |
| 7205732 | Energy collection and storage system A power generation and/or storage device utilizes human motion inputs or other power sources (i.e. hydraulics, pneumatics or explosive gases) to create mechanical kinetic energy that is stored (preferably in springs) and later released on demand to rotate a generato... | 04/17/2007 |
| 7198511 | Electric workstation with power reel cords An electric workstation in the shape of a hollow cabinet allows bringing electrical power connections to a site remote from a municipal electrical power supply. The cabinet is provided with one or more electrical sockets for connecting of electrically-powered tools ... | 04/03/2007 |
| 7187853 | Speed control of a d.c. motor The invention relates to a circuit and a method for the speed control of a d.c. motor, particularly the speed control of a fan driven by this d.c. motor, which is used as part of an air distribution system in passenger and commercial motor vehicles. The circuit for ... | 03/06/2007 |
| 7183516 | System and method for welding with multiple arcs A system and method for welding with a first and second arc between a first and second electrode, respectively, and a common workpiece, where each of the electrodes is driven by a single power source, where there is a first inductor connected in series with the firs... | 02/27/2007 |
| 7183517 | Portable welding-type apparatus with interchangeable energy storage device The present invention is directed to a portable welding-type power source including a removable energy storage device configured to provide a first voltage output and a boost circuit connected to the energy storage device and configured to boost the first voltage ou... | 02/27/2007 |
| 7176411 | Wire feeder A wire feeder for supplying consumable welding wire to a welding gun includes a housing and a wire advancing mechanism connected to the housing for paying wire from a wire spool to a welding gun. A storage tray is formed with the housing. A wire spool support is con... | 02/13/2007 |
