Abstract: An automated coating system includes a first coating station where a coating material is sequentially applied to bearing assemblies while a first side of each bearing assembly faces upward. A conveyor sequentially moves the bearing assemblies to a turning station where the bearing assemblies are turned over. The conveyor then moves the bearing assemblies to a second coating station where coating material is sequentially applied to the bearing assemblies while second sides of the bearing assemblies face upward. The conveyor then moves the bearing assemblies to a rotating station where an inner bearing race is rotated relative to an outer bearing race to promote even distribution of the coating material.

Abstract: Objects which have been abraded are coated with a coating material which is normally solid at room temperatures. The material is liquified at elevated temperatures and sprayed onto the cooler objects in a heated cabinet, whereupon the material at least partially solidifies on the object. Thereafter, heat is applied to the coating material to cause it to flow out over the coat surface. A cooled conveyor system prevents disruption of the coating material. Overspray is maintained in liquified form within the cabinet where it is reclaimed and flows to a heated sump for direct recirculation to the spray apparatus. There are no deleterious solvent emissions. Apparatus and methods are provided.

Abstract: A system for spray coating a substrate such as a flexible web of plastic film with a gas barrier coating containing a polymer dispersion. The system includes a spray coating booth or chamber including spray nozzles dispensing a spray of coating material onto the surface of a web of material continuously moving into and out of the coating chamber. A series of feed rollers move the web into the coating booth into proximity to the spray nozzles such that on actuation of the nozzles a stream of coating material coats both sides of the surface of the web with a wet coating layer. The coating booth includes a system for containing and removing the airborne liquid overspray carried from the booth with the web without disturbing the wet coating on the web and without substantially drawing of overspray from the coating chamber.

Abstract: An automatic safety system is built into a pneumatic motor actuated dispensing gun to prevent the gun from dispensing liquid material whenever the nozzle of the gun is loosened or removed from the gun body. The safety system comprises an air flow passage contained internally of the gun body for connecting the pneumatic motor to a normally sealed surface located between the nozzle and the gun body. Removal or loosening of the nozzle relative to the body, breaks this sealed surface and results in leakage of sufficient air pressure to atmosphere as to prevent actuation of the pneumatic motor and thus opening of the normally closed flow control valve of the gun.

Abstract: A manifold is disclosed which prevents vapors created on the interior of a coater booth or the like from escaping into the atmosphere through openings into or out of the booth. The manifold comprises a hollow annular chamber situated around an opening and having apertures or holes through the smaller, radially inner wall. A baffle disposed interiorly of the manifold creates an air flow passage therein which extends in a type of spiraling manner from the holes in the radially inner walls, in a downwardly direction then around and under the radially inner wall, and then in an upwardly direction to an exhaust port for the vapors. A liquid spray nozzle spraying a precipitant downward in the downwardly extending portion of the vapor flow passage creates a vacuum which draws the vapors into the manifold through the holes in the radially inner wall, scrubs the vapors and causes the vapors to be expelled through the exhaust port where they can be controllably disposed of.