Patent ID: 6193589
Filing Date: 2001-02-27
Classification: B24C

Abstract:
An improved hand piece apparatus for use with abrasive cleaning devices comprising:a housing assembly, said housing assembly includes a nosepiece with a protruded frontal opening for purpose of contacting a surface, a handle which connected at one end to the distal end of said nosepiece and at the other end connected to the proximal end of an end piece;a nozzle head assembly, said nozzle head assembly is secured between the said nosepiece and said handle, said nozzle head assembly includes a main body with an inlet port and an outlet port, said inlet port having a conical opening at the proximal end and an orifice at the distal end, said main body pivotally accommodates a switch that can manually be controlled by an operator to control said inlet port pressure at the proximal end and also at distal end of said inlet port; and,a pair of tubes, one said tube is connected to said inlet port of said nozzle head assembly for delivery of pressurized air and abrasive to said nozzle head assembly and the other said tube is connected to said outlet port of said nozzle head assembly to provide vacuum pressure to said nozzle head assembly.