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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.:

US 5104592 B1

PDFFull Text
Date of Patent:
Apr. 14, 1992

Filed:

Apr. 17, 1989

Method of and apparatus for production of three-dimensional objects by

Applicant:
Inventors:

Charles W Hull, Santa Clarita, CA (US);

Stuart T Spence, So. Pasadena, CA (US);

Charles W Lewis, Van Nuys, CA (US);

Wayne A Vinson, Valencia, CA (US);

Raymond S Freed, Northridge, CA (US);

Dennis R Smalley, Baldwin Park, CA (US);

Assignee:

3D Systems, Inc., Valencia, CA (US);

Attorney:

Lyon & Lyon

Primary Examiner:

Leo B Tentoni

Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
264 22 ; 118432 ; 118429 ; 118620 ; 118712 ; 156 64 ; 1562735 ; 1562755 ; 156378 ; 1563796 ; 2504 / ; 2504921 ; 264 401 ; 264308 ; 364476 ; 364522 ; 365106 ; 365107 ; 425135 ; 4251744 ; 427-8 ; 427541430.1 ;
Abstract

An improved sterolithography system for generating a three-dimensional object from object defining information, the information defining the object being structurally specified to reduce curl, stress and distortion in the ultimately formed object is described. A stereolithographic distortion known as curl is reduced by the system, and several techniques to eliminate or reduce curl are utilized by the system, including dashed line, bent line, secondary structure, rivets, and multi-pass techniques.

Find Patent Forward Citations

Hull, Charles. (1992). Method of and apparatus for production of three-dimensional objects by (U.S. Patent No. 5104592). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5104592

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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