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Class Information
Number: 219/86.41
Name: Electric heating > Metal heating (e.g., resistance heating) > For bonding with pressure (e.g., resistance welding) > By spot bonding > With significant electrode support > Having adjustment means > With condition responsive control means
Description: Subject matter wherein the electrode is automatically controlled in response to a sensed condition.










Sub-classes under this class:

Class Number Class Name Patents
219/86.51 Responsive to pressure 43


Patents under this class:
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Patent Number Title Of Patent Date Issued
8569646 Systems, methods, and apparatuses for monitoring weld quality Oct. 29, 2013
8513561 System for detecting weld nut orientation Aug. 20, 2013
8426761 Method of detection of welding workpiece position using movable electrode Apr. 23, 2013
8283591 Welding apparatus and welding method Oct. 9, 2012
7868266 Spot welding system and method for adjusting welding-gun closing speed Jan. 11, 2011
7002095 Spot welding system and method of controlling pressing force of spot welding gun Feb. 21, 2006
6906276 Resistance spot welding control device and method Jun. 14, 2005
6888089 Method of and device for setting reference position for servo spot welding gun May. 3, 2005
6875946 Device for welding Apr. 5, 2005
6870122 Electrode alignment inspector and method Mar. 22, 2005
6828522 Adaptable servo-control system for force/position actuation Dec. 7, 2004
6696660 Method and system for weld process monitoring Feb. 24, 2004
6621036 Programmable pogo welding apparatus and method Sep. 16, 2003
6573470 Weld gun heat removal Jun. 3, 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
6460007 Method and apparatus for determination of resistance spot welded flange width Oct. 1, 2002
6455800 Servo-pneumatic modular weld gun Sep. 24, 2002
6453213 Robot control system and method Sep. 17, 2002
RE37607 Resistance projection welding system and method for welding a fastener element to a workpiece Mar. 26, 2002
6359249 No wat welding system Mar. 19, 2002
6359566 Welding machines Mar. 19, 2002
6342686 Method for determining a condition of a resistance spotwelding system or a workpiece in the system Jan. 29, 2002
6337456 Welding machine and method for assembling same Jan. 8, 2002
6313427 Welding gun and methods conducted using the same Nov. 6, 2001
6303893 Resistance projection welder and method therefor Oct. 16, 2001
6294753 Resistance welding machine control method Sep. 25, 2001
6278077 Weld indexing method and system Aug. 21, 2001
6274840 Electrode position detecting system and method for spot welders Aug. 14, 2001
6236011 Method and apparatus for detecting an abnormal load on a servo gun shaft May. 22, 2001
6232572 Spot welding control system and control method May. 15, 2001
6225590 Method for determining a condition of a resistance spotwelding system or a workpiece in the system May. 1, 2001
6169263 Techniques for adaptive control of force in resistance welding applications Jan. 2, 2001
6084195 System and method for monitoring electrodes of a welder Jul. 4, 2000
6072145 Spot welding apparatus and a method for controlling the apparatus Jun. 6, 2000
6064028 Resistance forge welding machine May. 16, 2000
6020569 Welding system with a real-time weld quality detection sensor Feb. 1, 2000
6008471 Device for spot-welding of motor-vehicle bodies or subassemblies thereof Dec. 28, 1999
5981898 Method of controlling electrode pressure application force in an electric gun Nov. 9, 1999
5914056 Method of controlling a pressure application resistant welding machine Jun. 22, 1999
5906755 Spot welding control method and apparatus May. 25, 1999
5895585 Device for confirming opening of welding gun Apr. 20, 1999
5808266 Resistance projection welding system and method for welding a fastener element to a workpiece Sep. 15, 1998
5726410 Seam welding process and seam welding apparatus Mar. 10, 1998
5632912 Resistance projection welding system and method for welding a projection weld nut to a workpiece May. 27, 1997
5628923 Robot welding gun unit May. 13, 1997
5582747 Spot welding control method and apparatus using a servo welding gun Dec. 10, 1996
5556552 Head for and method of spot welding Sep. 17, 1996
5528011 Control system of a C-type welding gun Jun. 18, 1996
5493093 Computer-integrated multi-gun welding system Feb. 20, 1996

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