Patent ID: 7119301

Claim:
A device for isolating a surface for welding, comprising a housing provided with: a sealed inlet for receiving a welding apparatus, wherein the sealed inlet is disposed in a flexible member to allow the welding apparatus to be manipulated within the housing; a fluid inlet for the passage of heated gas into the housing, and a fluid outlet for the passage of heated gas and/or liquid out of the housing; a transparent viewing portion; a sealing means disposed between the housing and the surface, on which the housing is arranged in use to be mounted to provide a seal between the housing and the surface; and a heating means to provide heated gas to the fluid inlet; wherein, in use, ingress of the heated gas through the fluid inlet in the housing dries and heats the surface and a space defined by the housing and the surface, and facilitates an egress of gas and/or liquid contained in the space through the fluid outlet in the housing.