Abrasive Blasting Apparatus

Author:  Wern, Michael J.
Source:  US Patent 5,107,631
Doc ID:  1992034
Year of Publication:  1992
Abstract:  
A nozzle for sandblasting or shot peening a workpiece comprises a base and a finger. The finger having a diameter small enough to allow it to be inserted into an aperature in the workpiece. The finger has a lateral opening therin to allow peeining fluid to exit and impinge an interior wall of the aperture. The base has a bypass orifice therein which allows excess shot to exit the nozzle so that the nozzle will not clog with shot. A method for using the nozzle is contemplated whesrein the nozzle is reciprocated an drotated within the aperture so as to subject the entire interoir wall to the peening process.