[특허]Porous gas reservoir electrostatic transducer

Porous gas reservoir electrostatic transducer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02N-001/00
출원번호	US-0525294 (1995-09-07)
발명자 / 주소	Bolleman Brent J. (Vancouver CAX) Whitehead Lorne A. (Vancouver CAX)
출원인 / 주소	The University of British Columbia (Vancouver CAX 03)
인용정보	피인용 횟수 : 66 인용 특허 : 0

초록 ▼

An electrostatic transducer in which a plurality of perforated sheets are arranged adjacent one another in a stack. A gas-filled gap separates each adjacent pair of sheets. Conductive surfaces on each sheet impose an electric field within the respective gaps. A flexible positioning mechanism disposed between each adjacent pair of sheets maintains a desired average thickness of the gaps. A high porosity gas reservoir structure is fixed to one outer end of the stack, such that gas may flow through the sheets between the respective gaps and the reservoir. A cover sheet fixed to an end of the stack opposite the reservoir prevents gas flow between the gaps and the region external to the stack during operation of the transducer within its intended operating frequency range.

대표청구항 ▼

An electrostatic transducer having an intended operating frequency range and comprising: (a) a plurality of perforated sheets arranged adjacent one another in a stack; (b) a gas-filled gap separating each adjacent pair of said sheets; (c) a conductive surface on each of said sheets for imposing an electric field within said respective gaps; (d) flexible positioning means disposed between each adjacent pair of said sheets for maintaining a desired average thickness of said respective gaps; (e) a high porosity gas reservoir structure fixed to one outer end of said stack for gas flow through said sheets between said respective gaps and said reservoir; and, (f) a cover sheet fixed to an end of said stack opposite said one end to prevent gas flow between said gaps and a region external to said stack during operation of said transducer within said intended operating frequency range.

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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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Porous gas reservoir electrostatic transducer 원문보기

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Porous gas reservoir electrostatic transducer 원문보기

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이 특허를 인용한 특허 (66)

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