[특허]Micro-extrusion printhead nozzle with tapered cross-section

Micro-extrusion printhead nozzle with tapered cross-section 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-047/06
출원번호	US-0266974 (2008-11-07)
등록번호	US-8226391 (2012-07-24)
발명자 / 주소	Fork, David K. Kalio, Andre
출원인 / 주소	SolarWorld Innovations GmbH
인용정보	피인용 횟수 : 0 인용 특허 : 138

초록 ▼

A micro-extrusion printhead assembly utilized in a micro-extrusion system to form parallel extruded gridlines of material on a substrate includes a nozzle having a tapered (e.g., triangular or trapezoidal) cross-section arranged such that a lower surface of each gridline is substantially wider than its upper edge, and such that side surfaces of the extruded gridlines reflect incident light beams into exposed surface areas of the substrate, thereby minimizing the effective shadowed surface area under the gridline. In one embodiment, the fluidic channels of each nozzle are fabricated by cutting or etching progressively wider channels into a series of rigid layers, and then stacking the rigid layers to form a layered nozzle structure. In another embodiment, a single layer is processed to include a tapered cross-section having the desired triangular or trapezoidal cross-section.

대표청구항 ▼

1. An extrusion system for extruding a bead of extrusion material onto an upper surface of a target substrate, the extrusion system comprising: a printhead assembly including: a bottom plate including a first front edge and a first surface located adjacent to the first front edge; anda nozzle outlet structure including a second front edge and defining an elongated groove extending in a predetermined flow direction from a closed end to an open end defined through said second front edge, said elongated groove including an open edge having a first width and a closed edge having a second width that is smaller than the first width,wherein the bottom plate is mounted on the nozzle outlet structure such that the first surface is mounted over the open edge of the elongated groove to form an extrusion nozzle having a tapered cross-section defined by said elongated groove, wherein the elongated groove defines an outlet orifice defined by the open end of the elongated groove; andmeans for forcing extrusion material through the extrusion nozzle such that said extrusion material substantially fills the extrusion nozzle as said extrusion material flows in the flow direction and out of said outlet orifice to form said bead, whereby said bead has a cross-sectional shape that is essentially identical to the tapered cross-section of the extrusion nozzle,wherein the extrusion nozzle includes a central channel and two side channels that converge with the central channel at a merge point located adjacent to the opening, andwherein the extruded bead includes a functional material transferred through the central nozzle channel and a sacrificial material transferred through the two side channels such that the functional material forms a high-aspect ratio gridline structure on the substrate that is supported between two portions of said sacrificial material, andwherein the central channel and two side channels comprise troughs defined in said plate, andwherein said elongated groove is defined in said trough forming said central channel. 2. The extrusion system of claim 1, wherein the tapered cross-section of the elongated groove comprises a triangular cross-section. 3. The extrusion system of claim 1, wherein the tapered cross-section of the elongated groove comprises a step-wise oblique cross-section. 4. The extrusion system of claim 3, wherein the nozzle outlet structure comprises a plurality of layers, each layer defining an etched groove having an associated unique width, wherein said plurality of layers are stacked such that said etched grooves collectively form said step-wise oblique cross-section. 5. The extrusion system of claim 1, wherein the tapered cross-section of the elongated groove comprises a trapazoidal cross-section. 6. The extrusion system of claim 1, wherein the printhead further comprises a top nozzle plate defining an inlet port, wherein the top nozzle plate is mounted on the nozzle outlet structure such that the inlet port communicates with the closed end of the elongated groove, whereby extrusion material forced through the inlet port flows in the first flow direction along the extrusion nozzle and out of said outlet orifice to form said bead. 7. The layered nozzle structure according to claim 1, wherein the extrusion nozzle further includes a narrow section located between the merge point and the opening, wherein the narrow section has a first width that is narrower than a second width of said merge point and a third width of said opening.

이 특허에 인용된 특허 (138)

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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

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Micro-extrusion printhead nozzle with tapered cross-section 원문보기

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연합인증

Micro-extrusion printhead nozzle with tapered cross-section 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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IPC 상위 출원인

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