Skip to Content
Find More Like This
Return to Search

Narrow groove welding gas diffuser assembly and welding torch

United States Patent

August 7, 2001
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
A diffuser assembly is provided for narrow groove welding using an automatic gas tungsten arc welding torch. The diffuser assembly includes a manifold adapted for adjustable mounting on the welding torch which is received in a central opening in the manifold. Laterally extending manifold sections communicate with a shield gas inlet such that shield gas supplied to the inlet passes to gas passages of the manifold sections. First and second tapered diffusers are respectively connected to the manifold sections in fluid communication with the gas passages thereof. The diffusers extend downwardly along the torch electrode on opposite sides thereof so as to release shield gas along the length of the electrode and at the distal tip of the electrode. The diffusers are of a transverse width which is on the order of the thickness of the electrode so that the diffusers can, in use, be inserted into a narrow welding groove before and after the electrode in the direction of the weld operation.
Rooney; Stephen J. (East Berne, NY)
The United States of America as represented by the Department of Energy (Washington, DC)
09/ 498,018
February 4, 2000
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to a contract with the Department of Energy.