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특허 상세정보

Gas mixing apparatus for respirator

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G05D-011/03   
미국특허분류(USC) 137/98 ; 137/114 ; 137/607 ; 251/122
출원번호 US-0502629 (1995-07-14)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 134  인용 특허 : 15
초록

A gas mixing valve has first and second inlet chambers linked to supplies of a first and second gas, and a mixing chamber having a blended gas outlet. The inlet chambers are connected to the mixing chamber via first and second control valves, each valve having a valve seat and valve member with opposing Surfaces defining a flow control orifice. Each valve seat and valve member are relatively movable between a closed position in which no flow occurs and a maximum opening position to define a series of orifices of progressively increasing area correspondin...

대표
청구항

A gas mixing apparatus, comprising: a first chamber having an inlet for connection to a supply of a first gas: a second chamber having an inlet for connection to a supply of a second gas; a third, mixing chamber having an outlet for a mixture of said first and second gases; the first and second chambers having first and second passageways, respectively, connecting said first and second chambers, respectively, to said third chamber; a first piston slidably mounted in said first passageway and having a first opening defining a first valve seat; a first val...

이 특허에 인용된 특허 (15)

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  12. Herter ; deceased Martin (Romerfeldstr. 9 late of Pulheim-Geyen DEX) Herter ; heiress by Johanna (Romerfeldstr. 9 5024 Pulheim-Geyen DEX) Radtke ; heir by Ingrid (Schlehenweg 4 4047 Dormagen 1 (Delho. Process and device for the mixing of gases. USP1982084345610.
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