[특허]Thermal stereolithography

Thermal stereolithography 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-035/08 B29C-041/02 B29C-041/36
출원번호	US-0441709 (1995-05-15)
발명자 / 주소	Almquist Thomas A. (San Gabriel CA) Smalley Dennis R. (Baldwin Park CA)
출원인 / 주소	3D Systems, Inc. (Valencia CA 02)
인용정보	피인용 횟수 : 106 인용 특허 : 0

초록 ▼

Apparatus for and related methods of forming three-dimensional objects out of a building material, which is normally solid, but which is flowable when heated. In one embodiment, a support material is used to fill in portions of layers which are not to be solidified as part of the object, thus providing support to otherwise unsupported portions of other layers. Advantageously, the support material is also normally solid and flowable when heated, and has a lower melting point than the building material enabling the support material to later be removed without damaging the object. In an alternative embodiment this support material can be used to build a support such as a web support, or the like, for supporting an object surface from a second surface. In another alternative embodiment, such an apparatus is combined with a conventional stereolithographic apparatus to provide means for forming an object out of conventional stereolithographic materials, but utilizing a normally solid but thermally-flowable support material to provide support to the object, either on a layer-by layer basis, or by building supports such as web supports.

대표청구항 ▼

A method of forming a three-dimensional object on a layer by layer basis, comprising the steps of: supplying cross-sectional data descriptive of layers of the three-dimensional object; separately containing a building material and a support material one of which is a selected material and the other of which is an unselected material, wherein the selected material is normally in a solid state and which is made flowable when maintained at a temperature at least as great as a flowable temperature; maintaining said selected material at a temperature at least as great as said flowable temperature thereby causing said selected material to be flowable; selectively dispensing said flowable selected material in a prescribed pattern, according to said cross-sectional data, into a building environment which is maintained at a temperature below said flowable temperature to form a layer having areas of solidified material; applying the unselected material, while in a flowable state, to regions adjacent to said areas of solidified material; removing at least one of the selected material or unselected material located above a plane defining a desired upper surface of the layer; and repeating the selectively dispensing, applying and removing steps a plurality of times and separating the building and support material to form the three-dimensional object from a plurality of adhered layers.

이 특허를 인용한 특허 (106)

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Napadensky, Eduardo, Methods for three dimensional model printing.
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Wood, Alan G.; Farnworth, Warren M.; Watkins, Charles M.; Benson, Peter A., Methods of fabricating a microlens including selectively curing flowable, uncured optically trasmissive material.
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LaBossiere, Joseph E.; Dunn, Benjamin N.; McDonough, Thomas J.; Eshelman, Marvin E., Single-motor extrusion head having multiple extrusion lines.
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Priedeman, Jr., William R.; Brosch, Andrea L., Soluble material and process for three-dimensional modeling.
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Priedeman, William R.; Brosch, Andrea L., Soluble material and process for three-dimensional modeling.
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Williams, Vernon M., Stereolithographically fabricated conductive elements, semiconductor device components and assemblies including such conductive elements, and methods.
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Williams, Vernon M., Stereolithographically fabricated conductive elements, semiconductor device components and assemblies including such conductive elements, and methods.
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Williams, Vernon M., Stereolithographically fabricated conductive elements, semiconductor device components and assemblies including such conductive elements, and methods.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Thermal stereolithography 원문보기

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대표청구항 ▼

연구과제 타임라인

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Thermal stereolithography 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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