Patent ID: 6062492
Filing Date: 2000-05-16
Classification: B01F,B05B,B05C

Abstract:
A viscous material dispense system comprising:a dispense valve having an outlet;a nozzle assembly including a tubular nozzle member having one end secured to the dispense valve outlet whereby to receive viscous material from the dispense valve for passage through the nozzle member, another, free end defining a nozzle tip portion having a conical nozzle surface, and an axially extending main body tubular portion interconnecting said one end and the nozzle tip portion, and dispense means proximate the nozzle tip portion of the nozzle member operative to discharge viscous material in bead form from the nozzle assembly; anda tubular air shroud including a main body portion positioned telescopically over the main body portion of the tubular nozzle member and coacting with the main body portion of the tubular nozzle member to define an axially extending air passage therebetween and an air inlet communicating with the passage, and a tip portion positioned proximate the tip portion of the nozzle member and defining a conical nozzle surface coacting with the conical nozzle surface of the nozzle member tip portion to define a conical air passage therebetween communicating with the axially extending air passage and opening in surrounding relation to the nozzle tip portion of the nozzle member, whereby air introduced at the air inlet may flow through the axially extending air passage and thereafter flow through the conical air passage to impinge on the bead of viscous material exiting the nozzle assembly.