Portable Abrasive Blasting Gun Assembly

Author:  Jodoin, Pierre-Paul
Source:  US Patent 4,674,239
Doc ID:  1987118
Year of Publication:  1987
Abstract:  
Am improved protable abrasive blasting gun assembly which comprises a gun part having a compressed air conduit and an abrasive material conduit intersecting with one another to produce an abrasive carrying air jet. A protective housing is detachably secured to the gun. The housing has an abrasive blasting orifaice and a vacuum conduit in a side wall of the housing for removal of abrasive particles from the housing. The improvement in the assembly comprises an adapter barrel for interconnecting the gun part to the protective housing and permitting angular displacement of said abrasive carrying air jet along a predetermined plane. The barrel has a straight conduit therein and a gun securing protion to removably secure same to the gun. the barrell also has a nozzle end protion and a swivel connecting portion. The barrell is further received in a connecting aperture of the protective housing and retained on a pivot connection in the aperture of the housing with the nozzle end protion disposed forwardly of the vacuum conduit.