Nordson Corporation

Mark Gacka

Thomas E Hollstein

John C Traylor

Barbara Sprenger

Robert A Sprenger, Deceased

A method and apparatus for 360.degree. induction heating of a can body to cure or partially cure a protective coating applied thereto. The can bodies are inductively heated by placing them in a medium frequency, oscillating magnetic field generated by a multiple turn induction coil helically wound around the transport path of the can body. By using a medium-frequency field and by centering the can bodies with respect to the induction coil, the can bodies may be evenly and uniformly heated around 360.degree. of their circumference.

Induction heating system for 360.degree. curing of can body coatings

A powder spray gun for use in spraying particulate powder material of different colors is constructed of a number of individual parts which are quickly and easily disassembled from one another so that each part which comes into contact with particulate powder material can be individually cleaned in changing over from one powder to another. The powder spray gun comprises a mounting block which carries a rearward barrel member and a powder inlet tube, a forward barrel member connected to the rearward barrel member, a nozzle and pattern adjustment sleeve both carried on the forward barrel member and an electrostatic cable assembly received within a barrel liner which extend axially along the length of the spray gun. All but one of the connections between these parts are made by O-rings which frictionally engage facing surfaces of the parts so that they are easily pulled apart, cleaned by a jet of air or the like and then reassembled in preparation for spraying another color of particulate powder material.

Growing community of inventors

Lakewood, OH, United States of America

Mark Gacka