The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2008
Filed:
Aug. 08, 2002
William J. Swanson, St. Paul, MN (US);
Minea A. Popa, Roseville, MN (US);
Patrick W. Turley, Eden Prairie, MN (US);
William R. Priedeman, Jr., Long Lake, MN (US);
Paul E. Hopkins, Savage, MN (US);
Steve Brose, Belle Plaine, MN (US);
Daniel I. Kimm, San Diego, CA (US);
David L. Pollard, Mountain Center, CA (US);
Andrew M. Hahn, Anaheim, CA (US);
William J. Swanson, St. Paul, MN (US);
Minea A. Popa, Roseville, MN (US);
Patrick W. Turley, Eden Prairie, MN (US);
William R. Priedeman, Jr., Long Lake, MN (US);
Paul E. Hopkins, Savage, MN (US);
Steve Brose, Belle Plaine, MN (US);
Daniel I. Kimm, San Diego, CA (US);
David L. Pollard, Mountain Center, CA (US);
Andrew M. Hahn, Anaheim, CA (US);
Stratasys, Inc., Eden Prairie, MN (US);
Abstract
The present invention is a method and apparatus for building three-dimensional models by deposition modeling techniques from moisture-sensitive thermoplastics. A feedstock of thermoplastic modeling material is dried to a low moisture content and supplied to a dispensing head of a modeling apparatus. The dry thermoplastic material is heated in a liquifier and deposited in a predetermined pattern so as to build a three-dimensional model.