Three dimensional model and mold making method using thick-slice subtractive fabrication
Patent 6021358 Issued on February 1, 2000. Estimated Expiration Date: 
September 18, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 18, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2242631 2903390 3301725 Method of generating and constructing three-dimensional bodies Three-dimensional model-making system Apparatus for production of three-dimensional objects by stereolithography Computer automated manufacturing process and system Apparatus and method for forming an integral object from laminations Method and apparatus for constructing a three-dimensional surface of predetermined shape and color Method and apparatus for making three-dimensional objects InventorApplicationNo. 716557 filed on 09/18/1996US Classes:700/98, 3-D product design (e.g., solid modeling)700/95, Product assembly or manufacturing700/96, Integrated system (Computer Integrated Manufacturing (CIM)700/118, Three-dimensional product forming700/1633-D sculpturing using nontracing prototype sensorExaminersPrimary: Gordon, Paul P.Assistant: Patel, Ramesh International ClassesG06F 019/00G06G 007/66 AbstractA method of rapid prototyping which can utilize existing subtractive fabrication devices for the purpose of forming complex three-dimensional objects from a computer model. The method extends the capability of existing milling machines and other subtractive devices thereby allowing them to create objects of greater complexity than would normally be possible. Complex objects are subdivided by a computer control program into optimal machinable layers having a uniform outer geometry which permits simplified alignment and fixturing and wherein portions of the object are temporarily suspended by integrally machined support membranes. A minimum number of layers are required and these layers will have substantial thickness as compared with those of conventional additive fabricators. Surfaces of the models will be smooth and require little or no hand finishing. Methods for creating various types of molds from the models are described and a visualization and verification aid is provided for the operator, together with various diagnostic information.Other References
Field of SearchProduct assembly or manufacturingIntegrated system (Computer Integrated Manufacturing (CIM) 3-D product design (e.g., solid modeling) Performance monitoring Quality control Three-dimensional product forming Rapid prototyping (e.g., layer-by-layer, material deposition) Stereolithography 3-D sculpturing using nontracing prototype sensor 3-D or stereo imaging analysis COMPUTER GRAPHICS PROCESSING Three-dimension Solid modelling Stereoscopic imaging or three dimensional imaging | |
