[특허]Storage-stable, fluid dispensing device using a hydrogen gas generator

Storage-stable, fluid dispensing device using a hydrogen gas generator 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C25B-009/00 C25B-011/04 C25B-013/04 C25B-015/08
출원번호	US-0539998 (1995-10-06)
발명자 / 주소	Joshi Ashok V. Gordon John H. McEvoy John J.
출원인 / 주소	Ceramatec, Inc.
대리인 / 주소	Trask, Britt & Rossa
인용정보	피인용 횟수 : 68 인용 특허 : 0

초록 ▼

A storage stable fluid delivery device including a gas generator in which moisture (water) is involved in the gas generation reaction in which moisture containment is utility to prevent or retard water loss as disclosed. The moisture containment may be a moisture impermeable membrane as a permanent part of the device and may be utilized in conjunction with the gas generator when the membrane has high gas permeability for the gas being generated. The fluid delivered by such device is typically a liquid having some particular utility in its environment. The liquid dispensed may be a pharmaceutical or some other liquid having a beneficial or curative effect upon an animal or human patient or it may be a liquid such as an insecticide, fumigant, fragrance or other liquid having a relatively high vapor pressure.

대표청구항 ▼

[ What is claimed is:] [1.] A storage stable fluid delivery device comprising a liquid chamber containing a liquid to be dispensed, a flexible wall or movable piston positioned between said liquid chamber and a gas chamber into which gas flows from a gas generator structured to produce hydrogen at a substantially constant rate over a period of time such that the fluid flows from the liquid chamber through an outlet as the gas enters the gas chamber, said gas generator containing moisture which participates in the generation of the gas; sealing means to prevent substantial permeation of water vapor from the gas generator to the environment during storage; andwherein the gas generator is an electrochemical gas generating cell comprising a gas-evolving cathode composed of at least a hydrophobic gas permeable layer and a current collector, and an electroactive metal anode wherein said anode is electronically isolated from said cathode by an insulative means which is both ionically and electronically insulative;an aqueous electrolyte adapted to be in ionic communication with said anode and cathode;wherein said electrolyte is in contact with said electroactive metal anode during storage;wherein said gas generating cell contains enough moisture in the electrolyte to sustain water vapor losses due to permeation or leakage during storage, to be consumed in the electrode reactions, to humidify the generated gas, and to remain ionically conductive during the life of the device;wherein the anode and cathode are connected through an electric circuit consisting of a means to complete the circuit at the time of activation;and a hydrogen permeable moisture barrier means present to permit small amounts of hydrogen generated inadvertently during storage before the electrical circuit means is activated to substantially permeate out of the device andsaid barrier means having sufficiently low water vapor permeation to prevent the escape of substantial water vapor.

이 특허를 인용한 특허 (68)

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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

Storage-stable, fluid dispensing device using a hydrogen gas generator 원문보기

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Storage-stable, fluid dispensing device using a hydrogen gas generator 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (68)

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