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Title: Method of Forming a Textured Pattern on a Metal Plate which Pattern is Transformed to a Plastic Part, and a Press Plate and P
Author: Kirk R. Vetter
Source: US Patent 5,526,664
Publication year 1996
Document number: 1996122
Number of pages: 5
Abstract:
A method and apparatus are provided for imparting a textured surface to a work piece, particularly a metal plate or platen used to impress a textured surface on a sheet of
plastic laminate or the like. According to one form of the inventin, a stream of balls having substantially univorm size, shape and weight are propelled against a surface of
the work piece at a velocity sufficient for the balls to create an impact impression on the surface of the work piece. Particular characteristics of the texture may be
varied by changing the velocity, size, shape, weight, size of the stream, distance traveled by the steel balls, and the sweep rate over the work surface. A suction blast
gun having a particular size air jet and nozzle project the balls against the work piece which are fed to the gun through a magazine. The balls are propelled against the
surface by a pressurized fluid.
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