Patent ID: 6299518
Filing Date: 2001-10-09
Classification: B24D

Abstract:
A rotary abrasion device for surface preparation of a tubular metallic element, said rotary abrasion device comprising:a base section designed to be attached to a power tool, said base section having a central longitudinal axis with a first end and a second end, said first end being a shank of hexagonal cross-section, said second end of said base section including a shaft located along said central longitudinal axis and at least one lug located adjacent said shaft;a brush support section connected to said base section, said brush support section including a baseplate and an inner sleeve located along said central longitudinal axis and perpendicular to said baseplate, said baseplate having an openings therein that substantially match cross-sections of said shaft and said lug, said inner sleeve including at least two substantially oval-shaped apertures, said inner sleeve being hollow and sized appropriately to accept a tubular metallic element, said inner sleeve having an inner diameter slightly greater than said tubular metal element;a brush element including at least two brushes mounted adjacent to said apertures of said inner sleeve; anda brush adjustment arrangement peripherally located around said brushes, said brush adjustment arrangement being designed to force said brushes substantially through said apertures within said inner sleeve so as to come into contact with said tubular metallic element;wherein upon attachment to said power tool, said brush element is rotatable via said power tool; andwherein upon engagement of said tubular metallic element with said rotary abrasion device, and said tubular metallic element being held stationary relative to said rotary abrasion device, said tubular metallic element is abraded by said rotary abrasion device.