Micro-Extrusion System With Airjet Assisted Bead Deflection
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United States of America Patent
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Issued Date -
May 13, 2010
app pub date -
Nov 7, 2008
filing date -
Nov 7, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A gas jet source is used in conjunction with a micro-extrusion printhead assembly in a micro-extrusion system to bias extruded material onto a target substrate. The micro-extrusion system includes a material feed system for pushing/drawing materials out of extrusion nozzles defined in the printhead assembly as the printhead assembly is moved over the substrate. The gas jet source is positioned near the nozzle outlets, and directs a gas jet against the extruded material as it exits the extrusion nozzles such that the extruded material is reliably directed (biased) toward the target substrate. In some embodiments the gas jet causes slumping (flattening) of the extruded material against the substrate, producing low aspect ratio lines that may be merged to form a connected structure.
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