Patent ID: 6098913
Filing Date: 2000-08-08
Classification: B29C,B29L,B65H

Abstract:
A machine for applying a protective material onto a pipe in a substantially wrinkle free and continuous manner comprising:a frame supported on one or more base members, the frame including a pair of beams spaced from each other and positioned generally parallel to one another;at least one pair of wheels supported by the frame and positioned to receive a first end of the pipe therebetween, each of the at least one pair of wheels being mounted to a rotatable shaft;a support member for positioning and supporting the pipe between and in contact with the at least one pair of wheels;a first motor connected to each of the rotatable shafts for imparting rotation thereto so as to rotate the at least one pair of wheels, wherein rotation of the wheels causes rotation of the pipe disposed therebetween;a brake tension unit including a disc brake having a rotor and a pair of pads for engaging the rotor so as to apply pressure to the rotor, a mounting arm extending from the rotor and constructed and arranged to hold a core of the protective material in engagement with the brake tension unit, and a pressure setting member for adjusting the pressure applied by the pads to the rotor; andwherein upon operation of the machine, rotation of the brake rotor and attached mounting arm is restricted by pressure applied by the brake pads such that as the protective material unwinds from the core it is placed under tension and necks down a preselected amount depending upon the amount of pressure applied by the brake pads, and is applied to the pipe in a substantially wrinkle free manner.