Invention Grant
- Patent Title: Filament heaters configured to facilitate thermal treatment of filaments for extruder heads in three-dimensional object printers
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Application No.: US17007881Application Date: 2020-08-31
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Publication No.: US11383417B2Publication Date: 2022-07-12
- Inventor: David A. Mantell , Peter J. Nystrom , Christopher G. Lynn , Jun Ma , Mark A. Cellura , Gary D. Redding
- Applicant: Xerox Corporation
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Maginot Moore Beck LLP
- Main IPC: B29C48/80
- IPC: B29C48/80 ; B29C48/00 ; B29C48/29 ; B29C48/36 ; B29C64/106 ; B29C48/92 ; B29C64/295 ; B29C64/209 ; B33Y70/00 ; B33Y30/00 ; B29K101/12
Abstract:
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.
Information query
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