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:
Jan. 05, 1999
Filed:
Oct. 07, 1996
Applicant:
Inventors:
Hop D Nguyen, Quartz Hill, CA (US);
Jouni P Partanen, Los Angeles, CA (US);
Assignee:
3D Systems, Inc., Valencia, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
156246 ; 1562728 ; 1562755 ; 264401 ; 264344 ; 264221 ;
Abstract
A method and apparatus for building three-dimensional objects having an internal structure, wherein the structure is discontinuous and is composed from a plurality of patterns and bridging patterns formed on a plurality of levels, wherein a bridging level and pattern reside between previous and subsequent levels from which the bridging pattern obtains at least a portion of its pattern. A portion of the bridging pattern is obtained from the pattern on the previous level and a portion of the bridging pattern is obtained from the pattern on the subsequent level.