Westinghouse Electric Corporation

Robert E Pierce

Dean C Westervelt

A build control is disclosed, for controlling the thickness of a coating on different sides of an elongated member such as a wire. The build control is a tube which is positioned around the wire as the wire passes through a fluidized powder. The end of the tube which is in the fluidized powder is notched so that the build of powder on each of the sides of the elongated member is more or less than would otherwise result.

Build control for fluidized bed wire coating

An improved apparatus is disclosed for controlling the build on wire moving in a vertical electrostatic fluidized bed which has opposing vacuum chambers for controlling the position of the cloud of powder in the bed. Each vacuum chamber is provided with an opening to the atmosphere and with means for controlling the size of the opening. By 'spoiling' the vacuum in this manner the position of the cloud can be more precisely controlled thereby producing a more uniform coating on the wire.

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Abingdon, VA, United States of America

Robert E Pierce