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:
Dec. 28, 1999
Filed:
Dec. 20, 1996
David B Russell, Southboro, MA (US);
Timothy Anderson, Cambridge, MA (US);
James F Bredt, Watertown, MA (US);
Michael J Vogel, Concord, MA (US);
Martin Seymour, South Boston, MA (US);
Walter J Bornhorst, Boston, MA (US);
Marina I Hatsopoulos, Boston, MA (US);
Z Corporation, Somerville, MA (US);
Abstract
A printer forms three-dimensional objects from a powder by selectively applying a binder liquid to incremental layers of the powder. The binder binds layers of the powder into solid two-dimensional cross sections of the desired object provided from memory. The printer can use dithering and halftoning techniques to shade the object and can also print in color. A filtration system removes airborne powder and recirculates the clean air. The printer also includes additional features to manage excess and airborne powder.