US 12,240,065 B2
TIG welding torch
Tracy Parker, Worcestershire (GB)
Assigned to JINAN UNIARC WELDING TECHNOLOGY LIMITED, Jinan (CN)
Filed by JINAN UNIARC WELDING TECHNOLOGY LIMITED, Jinan (CN)
Filed on Feb. 21, 2023, as Appl. No. 18/112,171.
Application 18/112,171 is a continuation in part of application No. 16/301,259, granted, now 11,780,025, previously published as PCT/GB2017/051747, filed on Jun. 15, 2017.
Claims priority of application No. 201610416879.7 (CN), filed on Jun. 15, 2016; and application No. 201610417070.6 (CN), filed on Jun. 15, 2016.
Prior Publication US 2024/0058885 A1, Feb. 22, 2024
Int. Cl. B23K 9/167 (2006.01)
CPC B23K 9/167 (2013.01) 11 Claims
OG exemplary drawing
 
1. A TIG welding torch including a torch body, a metallic front section of the torch body for holding a tungsten rod and conducting electricity to the tungsten rod, and a ceramic nozzle for surrounding the metallic front section, wherein a heat isolation spacer is provided between the metallic front section and the ceramic nozzle, the ceramic nozzle being fitted over the heat isolation spacer and bearing against the outside of the heat isolation spacer, the heat isolation spacer being attached, at a point of attachment, to the metallic front section at a rear end of the metallic front section and a rear end of the heat isolation spacer, and the heat isolation spacer extending forwards of the point of attachment, spaced from the metallic front section to provide a thermal break between the ceramic nozzle and the metallic front section, and the ceramic nozzle being in contact with the heat isolation spacer forward of the point of attachment when the ceramic nozzle is fitted.