Metal fusion bonding – With control means responsive to sensed condition – Work-responsive
Reexamination Certificate
2006-11-21
2006-11-21
Johnson, Jonathan (Department: 1725)
Metal fusion bonding
With control means responsive to sensed condition
Work-responsive
C228S042000, C228S103000
Reexamination Certificate
active
07137544
ABSTRACT:
A welding apparatus includes a workpiece housing having a window therethrough and having a welding access therethrough for a welder to an interior of the workpiece housing. The workpiece housing is metallic with a heat insulation on an internal surface thereof. A lamp heat source is directed through the window and at the workpiece in the interior of the workpiece housing. A gas source delivers a controllable flow of a shielding gas to the interior of the workpiece housing. A temperature sensor senses a temperature of the workpiece within the interior of the workpiece housing. A feedback controller controls the power to the lamp heat source responsive to the temperature of the workpiece. To perform welding, the workpiece is placed into the interior of the workpiece housing so as to have its temperature sensed by the temperature sensor, and the gas source is operated to envelope the workpiece in the shielding gas. The workpiece is heated by powering the lamp heat source responsive to a setpoint input and to the temperature of the workpiece. The workpiece is welded using a welder operating through the welding access.
REFERENCES:
patent: 3812318 (1974-05-01), Yoshizumi et al.
patent: 5155336 (1992-10-01), Gronet et al.
patent: 5319179 (1994-06-01), Joecks et al.
patent: 5897801 (1999-04-01), Smashey et al.
patent: 6054687 (2000-04-01), Conner et al.
patent: 6121579 (2000-09-01), Aoki et al.
patent: 6124568 (2000-09-01), Broderick et al.
patent: 6172327 (2001-01-01), Aleshin et al.
patent: 6297474 (2001-10-01), Kelly et al.
patent: 6333484 (2001-12-01), Foster et al.
patent: 6364971 (2002-04-01), Peterson, Jr. et al.
patent: 6434327 (2002-08-01), Gronet et al.
patent: 6630991 (2003-10-01), Kitamura et al.
patent: 2002/0020696 (2002-02-01), Kitamura et al.
Dictionary.com, definition of insulation, <http://dictionary.reference.com/search?q=insulation> (accessed May 6, 2006), 2 pages.
Caddell, Jr. James Walter
Lawrence Robert Dale
General Electric Company
Johnson Jonathan
McNees Wallace & Nurick LLC
LandOfFree
Apparatus and method for performing welding at elevated... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for performing welding at elevated..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for performing welding at elevated... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3644204