US 9,731,444 B2 | Hand-held three-dimensional drawing device

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US 9,731,444 B2

Hand-held three-dimensional drawing device

Tech Center:

1700 Chemical and Materials Engineering

Examiner:

Matthew Daniels

Art Unit:

1743 Tires, Adhesive Bonding, Glass/Paper making, Plastics Shaping & Molding

Agent:

McDermott Will & Emery LLP

Inventors:

Peter DILWORTH; Maxwell BOGUE

Assignee:

WOBBLEWORKS, INC.

Priority:

12/05/12

Filed:

08/07/15

Granted:

08/15/17

Expiration:

12/24/32

Abstract

A three-dimensional (3D) drawing device having a housing configured for manipulation by a user's hand and to accept a feed stock that is, in certain embodiments, a strand of thermoplastic. The drawing device has a nozzle assembly with an exit nozzle and a motor connected to a gear train that engages the strand of thermoplastic feed stock such that rotation of the motor causes the feed stock to be extruded out of the exit nozzle to form a three-dimensional object.

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