Apparatus for applying a viscous liquid material and method of controlling application thereof
US5350600A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1992 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Aug 11, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/20
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.