초록 ▼

A continuous coater of the type having a conveyor extending through a coating booth where paint or other material is sprayed onto the products as they are conveyed through the booth. The booth has an air flow control vestibule located adjacent the entrance and exit ports. Each vestibule is connected

A continuous coater of the type having a conveyor extending through a coating booth where paint or other material is sprayed onto the products as they are conveyed through the booth. The booth has an air flow control vestibule located adjacent the entrance and exit ports. Each vestibule is connected to an air flow exhaust system and is so configured that it is operative to draw air almost exclusively from outside the booth into the exhaust system so that there is a minimum of input air to the exhaust system from within the booth. The incoming air from outside the booth effectively forms a flow barrier to the egress of sprayed material and/or solvent to the atmosphere through the vestibule entrance and exit ports. Preferably, there is located in each vestibule means for creating an air curtain which functions to minimize the egress of paint or solvent from the coater cabinet and to provide a more nearly saturated atmosphere inside the cabinet.

대표청구항 ▼

A coater comprising, a coating chamber adapted to have an object conveyed through it, said coating chamber having side walls, end walls, a bottom and a ceiling, entrance and exit openings in said end walls through which objects may be introduced into and out of said chamber, means for coating an obj

A coater comprising, a coating chamber adapted to have an object conveyed through it, said coating chamber having side walls, end walls, a bottom and a ceiling, entrance and exit openings in said end walls through which objects may be introduced into and out of said chamber, means for coating an object with a sprayed material in the course of passage through said chamber, air flow control vestibules extending outwardly from each end of said chamber adjacent said entrance and exit openings, each of said vestibules having an outer opening longitudinally aligned with but remote from the associated entrance and exit openings of said chamber, means for drawing air from outside said vestibules through said vestibules\outer openings without simultaneously drawing any substantial quantity of air from inside said chamber so as to create an air flow barrier to the escape from said chamber of airborne sprayed material, said last named means including at least one air collector slot located on opposite sides of each of said vestibules, exhaust fan means and duct means connected each of said air collector slots to said exhaust fan means whereby air is caused by said exhaust fan to flow into each of said vestibules through said outer openings and to be exhausted from said vestibules through said collector slots and said ducts.