Liquefier assembly for use in extrusion-based digital...

Details Liquefier assembly for use in extrusion-based digital... Liquefier assembly for use in extrusion-based digital...

2011-03-01

2011-03-01

Tentoni, Leo B (Department: 1742)

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

C264S308000, C425S375000, C425S378100

Reexamination Certificate

active

07897074

ABSTRACT:
A liquefier assembly comprising a liquefier tube, where the liquefier tube comprises a sidewall having an inlet opening configured to receive a filament strand, an outlet opening, and a port disposed through the sidewall at a location between the inlet opening and the outlet opening, the port being configured to provide access for a filament drive mechanism to engage with the received filament strand. The liquefier assembly further comprises a heat transfer component configured to generate a thermal gradient along a longitudinal length of the sidewall between the port and the outlet opening.

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