Extrusion Nozzle Shut-0ff
Original Publication Date: 1979-Mar-01
Included in the Prior Art Database: 2005-Feb-19
This article describes a nozzle shut-off device for the extrusion head assembly of the injection printing apparatus disclosed in U.S. Patent 3,384,931. Fig. 1 shows the nozzle shut-off 1, drive link 2 and shutter drive cylinder 3. The reservoir 4 and paste extrusion cylinder 5 are similar to those employed in the patent, and are shown to depict the relationship of the shut-off nozzle.