US 5,350,600 A · Apparatus for applying a viscous liquid material and method of controlling application thereof

Abstract

Disclosed is an apparatus for applying a viscous liquid material and a method of controlling the discharge of the viscous liquid material. The apparatus has a movable nozzle having a port for discharging the viscous liquid material in a predetermined discharging direction. The nozzle is movably arranged to controllably trace a predetermined track. A shutter for controllably closing the port of the nozzle includes a shiftable member arranged on the port to move relative to the port between a first position and a second position along a plane which crosses the discharging direction of the nozzle so that the shiftable member release and covers the port of the nozzle. The present invention is suitable for application on a loop track or a closed path. In the method, it is preferred that the first position is located on the front side of the second position facing toward a direction in which the nozzle advances at termination of tracing with the viscous liquid material.

Claims15

Dependent claims

An apparatus for applying a viscous liquid material, comprising:

a nozzle being substantially disposed along a vertical axis and having a port for downwardly discharging the viscous liquid material;
a shutter member shiftably arranged at said port for opening and closing said port so that an initial end and a terminal end of a stream of viscous liquid material being discharged from said port are defined by the opening and closing of said port, respectively;
motion means for controllably moving said nozzle so as to trace a predetermined closed track on a substantially horizontal underlying surface with said stream of viscous liquid material being discharged from said port;
and
shift means for controllably shifting said shutter member between first and second positions so that said terminal end of said stream of discharged viscous liquid material on said surface overlaps said initial end of said stream, and such that said shutter member is shifted in opposite directions perpendicular to said axis and parallel to said track between said first and second positions.

2 more elements

Dependencies are inferred from the claim text.

Apparatus for applying a viscous liquid material and method of controlling application thereof

Life of this patent

Apparatus for applying a viscous liquid material and method of controlling application thereof

Life of this patent

Abstract

Claims15