Electric heating – Metal heating – For bonding with pressure
Reexamination Certificate
2007-07-03
2007-07-03
Johnson, Jonathan (Department: 1725)
Electric heating
Metal heating
For bonding with pressure
C219S086310
Reexamination Certificate
active
10997456
ABSTRACT:
An improved cooling system for adapting to a two-component welding electrode device having a shank and cap, includes a retractable nozzle tube, a manifold, and an adjustment element for adjustably interconnecting the tube and manifold. A threaded bushing or plunger is attached to the tube and operable to adjust the distance between the interior surface of the cap and the outlet of the tube to a preferred distance. A threaded sleeve interconnects the tube and bushing for additional adjustability. The tube defines an elastically compressible bellows section, and a spacer is removably attached to the distal end of the tube for automatic adjustment of the outlet position by the cap.
REFERENCES:
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patent: 4393298 (1983-07-01), Frantzreb, Sr.
patent: 4958056 (1990-09-01), Tomac
Hallum, Diane L., Pick the Right Spot-Welding Electrode, Forming and Fabricating, Jun. 2000, vol. 7 No. 6.
Hirsch, Roger B., Influence of Water Temperature and Flow On Electrode Life, Unitrol Electronics Inc Oct. 29, 2003.
Yeung, K. S., Transient Thermal Analysis of Spot Welding Electrodes, The Welding Journal Jan. 1999.
Stevenson Robin
Wang Pei-Chung
Beveridge Rachel E.
General Motors Corporation
Johnson Jonathan
Marra Kathryn A.
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