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| Number | Title | Issue Date |
| 8183493 | Ultrasonic system for monitoring a weld operation A system for monitoring a weld operation is provided. The system includes an ultrasonic wave generator adapted to deliver an ultrasonic wave to a target material during the weld operation and an ultrasonic receiver adapted to receive the ultrasonic wave propagated t... | 05/22/2012 |
| 7858896 | Spot welding gun for resistance welding of workpieces A spot welding gun for resistance welding of workpieces, includes a base body and a bracket, in which electrode holders are arranged, the electrodes being in turn arranged in the holders. At least one electrode holder is fixed to an actuator that enables the electro... | 12/28/2010 |
| 7371990 | Cable monitoring system and monitoring method thereof A cable monitoring system, which monitors failure of a plurality of cables connecting a power supply and a welding gun, has voltage detection lines connected to arbitrary two points of each of the cables, an insulating transformer a primary side of which is connecte... | 05/13/2008 |
| 7301117 | Process and device for controlling the pressing force of an electrode holder A process and a device for controlling the pressing force of the electrodes [of an] electrode holder driven by means of an electric motor, especially of an industrial robot, during the welding operation characterized in that the motor position is controlled or that ... | 11/27/2007 |
| 7291803 | Method and device to obtain information to evaluate the quality of a resistance welding connection and/or to control or regulate a resistance welding method Method and device for obtaining information to evaluate the quality of a resistance welding connection and/or to control or regulate a resistance welding method. Method and device include performing a resistance welding procedure on workpieces, performing a step inc... | 11/06/2007 |
| 7282663 | Forge welding process An automated method for forge welding tubulars including heating the tubular ends to be joined in a welding chamber while the heated tubular ends are maintained aligned and parallel relative to each other and at a small spacing, whereupon the heated tubular ends are... | 10/16/2007 |
| 7259349 | Method for monitoring the quality of spot welding A method for monitoring the quality of spot welding, in particular for robotic applications. Workpieces, such as metal sheets are welded together using spot welding tools. The sheets are placed between at least two electrodes, which are pressed against one another a... | 08/21/2007 |
| 7256365 | Electrode holder with integrated ultrasound sensor A connecting element for connecting and/or fixing an electrode with an electrode arm of a welding apparatus has a base body; and a sensor selected from the group consisting of a sensor for introducing ultrasound waves into an electrode, a sensor for receiving ultras... | 08/14/2007 |
| 7253632 | Method for qualifying joints and contacts of electric circuits In a method for qualifying an electric circuit having at least one contact, a reference function of thermoelectric voltage versus time of a faultless electric circuit is provided. The circuit is heated by at least one measuring electric impulse. Thermoelectric-volta... | 08/07/2007 |
| 7247810 | Module for resistance welding tongs The invention originates in the field of resistance welding technology, among other means by means of welding robots 1, for use in roll seam welding, projection welding or spot welding, and has to do with accommodating components for operation inside the hous... | 07/24/2007 |
| 7244905 | Method for estimating nugget diameter and weld parameters A method for estimating weld nugget diameter includes receiving current and voltage inputs, a time input, and a force input. In certain embodiments, the method also uses other weld parameters including type of material, type of stack, stack thickness, applied force,... | 07/17/2007 |
| 7232053 | Seam-welded air hardenable steel constructions The present invention provides seam-welded, air hardenable steel tubes, methods of manufacturing seam-welded air hardenable steel tubes, tube mills for practicing such methods and applications for using seam-welded, air hardenable steel tubing of the present inventi... | 06/19/2007 |
| 7203133 | Ultrasound sensor system The invention relates to an ultrasound sensor system, especially for a welding electrode, comprising a sensor (5, 6, 7, 10) which, during the detection process, passes ultrasonic waves of a desired oscillation mode into areas to be detected and/or detects ult... | 04/10/2007 |
| 7199325 | Method for interconnecting tubulars by forge welding A method for interconnecting tubulars by forge welding involves arranging the tubular ends that are to be interconnected at a distance, up to a few millimeters from each other in a shield gas chamber, into which a reducing non-explosive flushing fluid mixture (e.g. ... | 04/03/2007 |
| 7197933 | Ultrasonic sensor for controlling the process during resistance spot welding A sensor carrier is provided that has at least one oscillating element (32) that introduces ultrasonic waves into an area to be examined and/or receives ultrasonic waves coming from the area to be examined, whereby the oscillating element (32) is locat... | 04/03/2007 |
| 7152493 | Specimen creating device An object is to provide an inspection sample making apparatus (30) that can simplify work for making an inspection sample (12) and can ensure inspection for seal condition. The inspection sample making apparatus (30) includes a preliminary-inspe... | 12/26/2006 |
| 7145336 | Opposed orthogonal fusion system and method for generating color segmented MRI voxel matrices The present invention provides a system and method for creating and manipulating one or more color-coded magnetic resonance images. The method includes acquiring a digitally-stored first gray tone series of images of a region of interest at a first predetermined tim... | 12/05/2006 |
| 7145097 | Method and apparatus for electrical resistance spot welding using electrical servo actuator The present invention provides a servo driven spot welder where an electric servo actuator moves at least one of two electrodes to and away from the workpiece. The servo driven spot welder includes a controller that allows accurate control of the position of one of ... | 12/05/2006 |
| 7132617 | Method and system for assessing quality of spot welds A system and method for assessing the quality of spot weld joints between pieces of metal includes an ultrasound transducer probing a spot weld joint. The ultrasound transducer transmits ultrasonic radiation into the spot weld joint, receives corresponding echoes, a... | 11/07/2006 |
| 7069185 | Computerized machine controller diagnostic system A computerized machine control (CMC) diagnostic system communicates with a computerized machine controller that utilizes a control program to control the operation of a machine through the use of a plurality of digital channels. In general terms, the system includes... | 06/27/2006 |
| 7036376 | Device for evaluating signals A welding system includes a device for evaluating an ultrasonic signal during a welding process. The device has a meassured value evaluation unit that, in normal operation, evaluates at least one measurement signal that is derived from an ultrasonic signal and is lo... | 05/02/2006 |
| 7038591 | Apparatus for testing and marking workpieces A workpiece testing and marking system includes an apparatus for testing a workpiece and for selectively generating a signal that is representative of a result of the test. The system also includes a marker that is adapted to provide a visual indication on the workp... | 05/02/2006 |
| 7030334 | Method of diagnosing degradation of a welding system A method of diagnosing electrical degradation of a welding system. The method includes determining whether a predetermined number of welds has been executed, positioning welding electrodes, applying and measuring current applied through the electrodes, and comparing... | 04/18/2006 |
| 7021157 | System and method for testing a clamping force A system for testing a clamping force includes a lever, a base, and a sensor, The lever is coupled to a pivot and moves about the pivot. The lever includes a first end and a second end on opposites sides of the pivot. The base receives a first tip of a clamp and mai... | 04/04/2006 |
| 7004370 | Device and method for determining parameters of a welding system The invention relates to a device and method for determining parameters of a welding system. According to the invention, a welding area (18, 21, 22) is subjected to the action of ultrasonic waves, preferably to the action of shear waves, by using an ultrasoun... | 02/28/2006 |
| 7002103 | Welding-type power supply with a state-based controller A method and apparatus for providing welding-type power includes a source of welding-type power and a controller. The controller is a state-based controller, and/or a deterministic control module, connected to the controller output. The state-based control module in... | 02/21/2006 |
| 6968292 | Industrial controller event logging Industrial equipment is monitored by at least one industrial controller assigned to each group of industrial equipment. Queues are established by logic within one of the industrial controllers for each group. Each queue holds a number of event records. Logic is esta... | 11/22/2005 |
| 6953917 | System and method for ensuring the qualification of a workman to perform a task having established required standards A method and system for ensuring compliance with regulatory requirements to train, test, perform, evaluate and document identified covered tasks and provide the means to meet governmental and/or industrial standards including measuring applicable physical parameters... | 10/11/2005 |
| 6948369 | Methods for ultrasonic inspection of spot and seam resistance welds in metallic sheets and a spot weld examination probe system (SWEPS) An external focused ultrasonic beam, non-destructive, open-air, inspection method of sheet metal spot and seam weldments using a probe in combination with motion measurement of the probe over the weldments during inspection without immersion of the material. Reflect... | 09/27/2005 |
| 6941826 | Method and device for detecting abrasions of electrodes in stationary welding gun A method for detecting abrasion of both a moving side electrode (2) and a fixing side electrode (3) of a stationary type welding gun in which the moving side electrode (2) and the fixing side electrode (3) opposed to the moving side elect... | 09/13/2005 |
| 6925882 | Methods for ultrasonic inspection of spot and seam resistance welds in metallic sheets Spot and seam weldments in sheet metal components are inspected by a method in which a focused ultrasonic beam is directed into the weldment from the outside surface together with measuring the motion of the ultrasonic beam over the weldment. Reflected ultrasonic wa... | 08/09/2005 |
| 6914440 | Welding system and method utilizing a ground integrity monitor A welding system having a welding gun, comprising a casing that is grounded through a ground conductor, and a monitoring device, which detects the resistance of the ground conductor. A blanking device deactivates the monitoring device during the welding operation to... | 07/05/2005 |
| 6911615 | Welding head A welding head for connecting weld members by resistance welding includes an infeed cylinder having a piston rod, an electrode movable via the cylinder; and a sensor arranged between the piston rod of the infeed cylinder and a readjusting spring for the rapid readju... | 06/28/2005 |
| 6903298 | Resistance welding control method This invention provides a method of producing a series of substantially uniform spot welds between two metal parts using a servomotor driven movable electrode and an axially opposing fixed electrode. Target values for electrode displacement in producing a weld inden... | 06/07/2005 |
| 6870122 | Electrode alignment inspector and method Method and apparatus for detecting unacceptable misalignment of welding electrodes. An electrode-alignment station is positioned adjacent a welding station. A robot controls the movement of the electrodes, and occasionally moves the electrodes out of the welding sta... | 03/22/2005 |
| 6867386 | Welding state detecting and transmitting device for resistance-welding machine The welding state detecting and transmitting device 40 is provided with a secondary battery 60 for accumulating power to be supplied to components within the device 40, a charging circuit 58 that utilizes a portion of the welding current ... | 03/15/2005 |
| RE38570 | Control unit and control method of robot used for arc welding A welding voltage value Vf and a welding current value IF are respectively monitored by a detector during execution of arc welding in accordance with a robot operation program, indexes are calculated which show how far the monitored values Vf and If are deviated fro... | 08/24/2004 |
| 6750418 | Method and system for weld process monitoring A weld tip testing element is presented. The weld tip testing element includes a first alignment member and a first lever element coupled to the alignment member. The first lever element is further coupled to a first pivot and the first alignment member is operable ... | 06/15/2004 |
| 6696660 | Method and system for weld process monitoring A weld tip testing head is presented. An alignment member has an aperture disposed therein and is coupled to a spring element. The spring element is further coupled to a mounting. The aperture is operable to removably receive a weld tip and the alignment ... | 02/24/2004 |
| 6636776 | System and method for managing welding procedures and welding resources A system and method for managing welding procedures is provided. The invention includes a welding system, a local server and/or a remote system. The invention further provides for searching of the welding system, local server and/or remote system for pote... | 10/21/2003 |
