Filament drive mechanism for use in extrusion-based digital...

Details Filament drive mechanism for use in extrusion-based digital... Filament drive mechanism for use in extrusion-based digital...

2011-03-01

2011-03-01

Langdon, Evan H (Department: 3654)

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Such means produces the modifications

C226S006000, C226S076000, C264S308000, C242S564000

Reexamination Certificate

active

07896209

ABSTRACT:
A filament drive mechanism comprising a rotatable component comprising a central hole defined at least in part by an internally-threaded surface, and is configured to receive a filament strand through the central hole to engage the internally-threaded surface with the filament strand. The filament drive mechanism further comprises at least one rotation mechanism configured to rotate the rotatable component, thereby allowing the engaged internally-threaded surface to drive the filament strand through the central hole of the rotatable component.

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