Welding torch and shield
AssigneeROLLS-ROYCE plc
InventorsMark C Ireland, Daniel Clark, Jeffrey Allen, Barry D Smith, Alexander Kutscherawy
Life of this patent
Estimating the term…
Abstract
A welding torch (10) for welding on a component has an electrode (12) within a nozzle (14) through which a flow of gas passes. A shield (20) defines an enclosure (22) around the nozzle (14). Means are provided for supplying weld filler material (18) into the vicinity of the electrode (12) through the shield (20). One end of the shield (20) is attached to the welding torch (10). The other end of the shield (20) is open and extends towards the component (16). An inflatable seal (28) is mounted on the end of the shield (20) to seal between the shield (20) and the component (16).
Claims16
A welding torch for welding a component comprising:
- a welding element;
- a nozzle surrounding the welding element through which a first flow of fluid passes;
- means for supplying weld filler material to the welding element;
- and
- a shield surrounding the nozzle which defines an enclosure around the nozzle to which a second flow of fluid passes, the shield having an inflatable seal mounted thereon to seal between the shield and the component, wherein
- the inflatable seal is made from a porous material and acts to diffuse the fluid supplied thereto.
A shield for a welding torch comprising:
- a wall member which defines an enclosure, the wall member having an opening at either end, the opening at one end of the wall member being adapted for attachment to the welding torch, the opening at the other end of the wall member having an inflatable seal mounted around the periphery thereof, wherein
- the inflatable seal is made from a porous material and acts to diffuse fluid supplied thereto.
Dependencies are inferred from the claim text.