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US 2015/0086668 A1Published application
Extruder Feed System
AssigneeMassachusetts Institute of Technology
InventorsAlfonso Alexander Perez, Christopher Michael Haid, Mateo Pena Doll, Forrest W. Pieper
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Abstract
Extruder feed system. The system includes a pair of spaced-apart, internally and oppositely threaded rotatable elements for receiving and engaging a plastic filament material. An electric motor rotates the rotatable elements in opposite directions thereby to drive the filament into a liquefier chamber for subsequent discharge through a nozzle. The system provides very accurate layer-by-layer build up.
Claims9
Extruder feed system comprising:
- a pair of spaced-apart, internally and oppositely threaded rotatable elements for receiving and engaging a filament material;
- and
- a motor for rotating the rotatable elements in opposite directions thereby to drive the filament into a liquefier chamber for subsequent discharge through a nozzle.
Dependencies are inferred from the claim text.