US PATENT SUBCLASS 264 / 401
STEREOLITHOGRAPHIC SHAPING FROM LIQUID PRECURSOR


Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

401STEREOLITHOGRAPHIC SHAPING FROM LIQUID PRECURSOR


DEFINITION

Classification: 264/401

STEREOLITHOGRAPHIC SHAPING FROM LIQUID PRECURSOR:

(under the class definition) Processes directed to the application of electromagnetic wave energy on a confined solidifiable liquid or semi-solid material which results in formation of a solid three-dimensional product.

(1) Note. In most cases the subject matter found in this subclass includes processes of producing solid three dimensional articles by application of computer directed electromagnetic wave energy in combination with polymerization and surface tension phenomena at a selected area of a confined polymerizable liquid or semi-solid material, causing a shaped integrated three-dimensional layered buildup (solidified article) to form.

(2) Note. The technology of this subclass generally includes a scanner, laser, photopolymer vat, and a controlling computer.

(3) Note. Synergistic stimulation by impinging radiation or particle bombardment, which alters the physical state of a confined fluid medium and forms a three-dimensional article

(part), is considered appropriate for this subclass.

SEE OR SEARCH CLASS

156, Adhesive Bonding and Miscellaneous Chemical Manufacture, for processes of uniting preforms, especially

58, contour or profile photography to reproduce three-dimensional objects. 430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof, for processes of using radiation to reproduce a likeness or image of an object and see especially

269, imaging affecting physical property of radiation sensitive material, or producing nonplanar or printing surface-process, composition or product.