NOZZLE FOR APPLYING A THIN FILM OF LIQUID

摘要

A nozzle for applying a fluid material to an object includes a tubular wall with several circumferentially spaced ribs that extend outward from the tubular wall to engage an object to which the fluid material is to be applied. The ribs are configured to space the tubular wall from the object to provide a gap between them for receiving the fluid material and to align the tubular wall with the object. The tubular wall provides at least one opening between adjacent pairs of ribs to allow the fluid material to flow into the gap. The nozzle includes a sealing surface that is configured to engage a portion of the object when the spaced ribs are engaging the object to prevent escape of the fluid from said gap and to allow pressure to be applied to the fluid material. This pressure is detected to determine when the gap has been filled.