Patent ID: 9168547
Filing Date: 2015-10-27
Classification: B05B,B05D,C23C,F02F

Abstract:
1. A thermal metal spraying apparatus having a thermal metal spraying torch for applying a metal coating to a workpiece through a torch spraying nozzle having a spraying orifice, comprising: a substantially tubular shroud having a first end and a second end and adaptable to concentrically receive said torch spraying nozzle, and said shroud having an opening adjacent to said second end through a cylindrical surface of said shroud, wherein said opening is selectably alignable with said spraying orifice; and a drive mechanism connected to said shroud and operable to translate said shroud between a first position, wherein said opening of said shroud is not aligned with said spraying orifice preventing spraying of said metal coating on said workpiece, and a second position, wherein said opening of said shroud is aligned with said spraying orifice permitting the spraying of said metal coating toward said workpiece and said spraying orifice remains at least partially within said shroud.