Filament heaters configured to facilitate thermal treatment of filaments for extruder heads in three-dimensional object printers

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United States of America Patent

PATENT NO 11383417
APP PUB NO 20200398476A1
SERIAL NO

17007881

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An additive manufacturing system includes a heater for converting a filament of extrusion material into thermoplastic material. The heater has a channel configured to change the cross-sectional shape of the filament to a cross-sectional shape that has a greater surface area than the surface area of the filament before the heater receives the filament. The channel of the heater can also be configured to drive the center portion of the filament toward the heated walls of the channel and to mix thermoplastic material in the channel while exposing the center portion of the filament to the heated wall of the channel.

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Patent Owner(s)

Patent OwnerAddress
XEROX CORPORATION201 MERRITT 7 NORWALK CT 06851-1056

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cellura, Mark A Webster, US 53 429
Lynn, Christopher G Wolcott, US 28 139
Ma, Jun Penfield, US 756 4916
Mantell, David A Rochester, US 171 1876
Nystrom, Peter J Webster, US 124 1409
Redding, Gary D Victor, US 38 318

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