Gas shielded arc welding torch
AssigneeAlexander Binzel GmbH & Co. KG
InventorsEwald Geus, Vesa Tammi
Life of this patent
Estimating the term…
Abstract
A gas shielded arc welding torch with a working nozzle end including a nozzle seat having first a conically shaped outer surface decreasing towards the working end, a push on gas nozzle adapted to be received on the nozzle seat from the working end thereof and projecting beyond the working end thereof, the nozzle having an expandible section adapted to overlie the nozzle seat in tight engagement therewith, and constricting means resisting expansion of the nozzle.
Claims12
The combination comprising a welding torch including a current and coolant carrying torch tube and cable assembly with a coolant receiving gas nozzle seat affixed thereto at one end thereof, a gas nozzle, said nozzle seat having a conically shaped outer diameter surface portion decreasing towards an end of the nozzle seat opposite the torch tube and cable assembly, said nozzle having an attachment end with an inner cylindrical wall received directly around the nozzle seat and in direct contact therewith, said attachment end having expansion slits, the angle of inclination of said outer surface portion and the inner diameter of said inner cylindrical wall of said attachment end being such that said attachment when seated is in a stressed, expanded condition on the nozzle seat and in substantially complete contact with said seat, and a constricting ring received around said nozzle and effective to increase the contact pressure between said seat and said attachment end.
A welding torch member comprising a current and coolant carrying torch tube with a coolant receiving nozzle seat affixed thereto at one end of the tube, a gas nozzle, said nozzle seat having a conically shaped outer diameter surface portion decreasing towards an end of the nozzle seat opposite the torch tube, said outer surface portion having an angle of inclination of from 0.2.degree. to 2.0.degree., said nozzle having an attachment end with an inner cylindrical wall received directly around the nozzle seat and in direct contact therewith, said attachment end having expansion slits, said angle of inclination of said outer surface portion of said nozzle seat and the inner diameter of said inner cylindrical wall of said attachment end of the nozzle being such that said attachment end when seated is in a stressed, expanded condition on said nozzle seat and in substantially complete contact with such seat, and a constricting ring received around said nozzle and effective to increase the contact pressure between said nozzle seat and said attachment end.
Dependencies are inferred from the claim text.