Extruder for three-dimensional printers

US9878481B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9878481-B2
Application numberUS-201514635447-A
CountryUS
Kind codeB2
Filing dateMar 2, 2015
Priority dateMar 2, 2015
Publication dateJan 30, 2018
Grant dateJan 30, 2018

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

An extrusion head of an extruder is configured to move along a feedpath independently from a heating element so that the extrusion head can yield to extrusion-related forces. Specifically, the extruder may include an extrusion head movably coupled to a thermal core to permit axial displacement of the extrusion head relative to the thermal core. In use, the extrusion head may be displaced within the thermal core when the extruder is subject to extrusion-related forces (e.g., an upward force created by a refraction of build material or a downward force created by an advance of build material). This motion can facilitate better transitions by the extruder between different layers or z-axis positions in a model during fabrication.

First claim

Opening claim text (preview).

What is claimed is: 1. An extruder for a three-dimensional printer, the extruder comprising: a drive assembly including a drive gear positioned to drive a build material along a feedpath; a thermal core in the extruder having an opening passing cylindrically therethrough; an extrusion head along the feedpath, the extrusion head fitted within the opening in the thermal core, the extrusion head including a top opening to receive the build material, a bottom opening to extrude th…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9878481B2 cover?
An extrusion head of an extruder is configured to move along a feedpath independently from a heating element so that the extrusion head can yield to extrusion-related forces. Specifically, the extruder may include an extrusion head movably coupled to a thermal core to permit axial displacement of the extrusion head relative to the thermal core. In use, the extrusion head may be displaced within…
Who is the assignee on this patent?
Makerbot Ind Llc
What technology area does this patent fall under?
Primary CPC classification B29C48/865. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jan 30 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).