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:
Sep. 05, 2000
Filed:
May. 28, 1998
Ampere A Tseng, Phoenix, AZ (US);
Arizona State University, Tempe, AZ (US);
Abstract
An improved system for forming a three-dimensional object by filament deposition of forming materials includes a crucible for holding a reservoir of the filament forming material, an orifice disposed in the bottom of the crucible through which the forming material passes to form a flow of material filaments, and a flow control apparatus for controlling and selectively depositing the flow of material filaments on the substrate exclusively where required to form the three-dimensional object. In a preferred embodiment, the forming material is ejected from the crucible as a variable-diameter circular liquid jet, which cools to form variable-diameter filaments of semi-molten forming materials.