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Class Information
Number: 219/109
Name: Electric heating > Metal heating (e.g., resistance heating) > For bonding with pressure (e.g., resistance welding) > Systems of current supply > With indicator (e.g., recorder)
Description: Subject matter having indicating means.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8648903 Device for evaluating images of weld spots on a carrier material Feb. 11, 2014
8415582 Method for monitoring and maintaining a resistance welding apparatus Apr. 9, 2013
8183493 Ultrasonic system for monitoring a weld operation May. 22, 2012
8178817 Spot welding tongs for robotic applications in resistance welding of workpieces May. 15, 2012
8027819 Fracture prediction device for spot welded portion, method of the same, software arrangement, and computer-accessible medium Sep. 27, 2011
7858896 Spot welding gun for resistance welding of workpieces Dec. 28, 2010
7687099 Spray coating Mar. 30, 2010
7564005 Resistance welding fastener electrode and monitor and method of using same Jul. 21, 2009
7371990 Cable monitoring system and monitoring method thereof May. 13, 2008
7259349 Method for monitoring the quality of spot welding Aug. 21, 2007
7256365 Electrode holder with integrated ultrasound sensor Aug. 14, 2007
7253632 Method for qualifying joints and contacts of electric circuits Aug. 7, 2007
7244905 Method for estimating nugget diameter and weld parameters Jul. 17, 2007
7203133 Ultrasound sensor system Apr. 10, 2007
7197933 Ultrasonic sensor for controlling the process during resistance spot welding Apr. 3, 2007
7132617 Method and system for assessing quality of spot welds Nov. 7, 2006
7038591 Apparatus for testing and marking workpieces May. 2, 2006
7036376 Device for evaluating signals May. 2, 2006
7030334 Method of diagnosing degradation of a welding system Apr. 18, 2006
6914440 Welding system and method utilizing a ground integrity monitor Jul. 5, 2005
6870122 Electrode alignment inspector and method Mar. 22, 2005
6867386 Welding state detecting and transmitting device for resistance-welding machine Mar. 15, 2005
RE38570 Control unit and control method of robot used for arc welding Aug. 24, 2004
6750418 Method and system for weld process monitoring Jun. 15, 2004
6696660 Method and system for weld process monitoring Feb. 24, 2004
6636776 System and method for managing welding procedures and welding resources Oct. 21, 2003
6627841 Method for designing a weld fixture based on predicted stresses and distortions Sep. 30, 2003
6609033 Field programmable welding controller Aug. 19, 2003
6563073 Method of welding metals and apparatus for use therefor May. 13, 2003
6531674 Welding gun and methods conducted using the same Mar. 11, 2003
6506996 System and method for performing preventative maintenance upon spot welding guns Jan. 14, 2003
6506997 Spot welding system and method for sensing welding conditions in real time Jan. 14, 2003
6479784 Method for quality control of spot welding in welding machines Nov. 12, 2002
6466004 Apparatus and method for measuring weld circuit Oct. 15, 2002
6453213 Robot control system and method Sep. 17, 2002
RE37799 Automatic assembling system of galvanized steel sheet by spot welding Jul. 23, 2002
6414259 Inter-welding electrode moving amount detecting method and apparatus thereof Jul. 2, 2002
6414260 Welding electrode with an arrangement for introducing ultrasound in order to check weld joints Jul. 2, 2002
6414261 Analysis of weld image to determine weld quality Jul. 2, 2002
6342686 Method for determining a condition of a resistance spotwelding system or a workpiece in the system Jan. 29, 2002
6335504 Apparatus for monitoring spot welding process and method of the same Jan. 1, 2002
6313427 Welding gun and methods conducted using the same Nov. 6, 2001
6297467 Transducer built into an electrode Oct. 2, 2001
6288364 Weld quality measurement Sep. 11, 2001
6281465 Device for predictive diagnosis of the current quality of technical production from a technical installation, particularly of the current quality of welding points of a spot welding robot Aug. 28, 2001
6208146 Method and apparatus for measuring contact resistance for spot welding simulations Mar. 27, 2001
6201206 Method of detecting abrasion quantity of welding gun electrode and welding method Mar. 13, 2001
6160235 Measurement of welds Dec. 12, 2000
6156992 Welding device control method and welding device Dec. 5, 2000
6118095 Control device for resistance welder Sep. 12, 2000

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