Patent ID: 8517722

Claim:
A torch assembly, comprising: a first tube having opposing first and second ends and a first body structure between the opposing first and second ends, the first body structure defining an approximately cylindrical tube structure; a second tube having opposing first and second ends and a second body structure between the opposing first and second ends, the second body structure defining an approximately cylindrical tube structure; and a support jacket, the support jacket including a support structure, the support structure defining an aperture extending along an axis oriented along a generally longitudinal direction of the support structure, the second end of the first tube and the second end of the second tube each having a cross sectional area relative to the axis of the support structure, the cross sectional area of the second end of the first tube being greater than the cross sectional area of the second end of the second tube, the aperture of the support structure having a first cross sectional area for a first portion of the support structure and a second cross sectional area for a second portion of the support structure, the first portion and the second portion each extending in a generally longitudinal direction of the support structure, the cross sectional area of the second end of the first tube being at least substantially similar to the first cross sectional area for the first portion and greater than the second cross sectional area for the second portion, the cross sectional area of the second end of the second tube being less than the first cross sectional area for the first portion and at least substantially similar to the second cross sectional area for the second portion, the first tube and the second tube being in a substantially concentric configuration when the second end of the first tube and the second end of the second tube are inserted into the aperture of the support structure, the first tube and the second tube forming a gap between the first tube and the second tube when in the substantially concentric configuration, wherein at least one of the first tube or the second tube defines a groove at the second end of the at least one of the first tube or the second tube, the groove located on at least a portion of at least one of the first body structure or the second body structure, the groove aligning with a raised portion on the support structure when the at least one of the first tube or the second tube is inserted into the aperture of the support structure, the raised portion configured to permanently mate with the groove.