Patent ID: 6126524
Filing Date: 2000-10-03
Classification: B24C,Y10T

Abstract:
Apparatus for applying a high speed repetitive motion to a high pressure and high velocity liquid stream for carrying out a surface treatment operation upon a workpiece surface, said apparatus comprising:a waterjet head having a longitudinal axis, an ultra high pressure liquid inlet and an outlet nozzle for discharging a concentrated liquid stream;means for supporting said head to position said outlet nozzle relative to the workpiece surface;said supporting means including first and second supports attached to said head at axially spaced first and second portions of said head;said first support including a resilient member biasing said first portion of said head to a normal position and permitting limited movement of said first portion of said head relative to said normal position in a plane perpendicular to said longitudinal axis;said second support defining a pivot point fixed relative to said normal position; anddrive means connected to said head for applying a drive force to said head at a location remote from said pivot point for causing said head to pivot at said pivot point while said first portion of said head repetitively moves relative to said normal position and said outlet nozzle repetitively moves to move the liquid stream along a path upon the workpiece surface.