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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0521895 (1974-11-07) |
우선권정보 | SF-0003474 (1973-11-12) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 14 인용 특허 : 0 |
A valve suitable for connection to a vacuum sewer system and comprising a flow duct with a resilient wall which acts as a flow duct closing member. Outside the wall with respect to the flow duct there is a closed chamber connectable to suitable pressure sources in order to move the resilient wall by
A valve adapted for connection to a vacuum sewer system, said valve comprising a flow duct having an inlet side and an outlet side, a resilient wall in said flow duct, said wall acting as a flow duct closing member, means defining a closed expansible chamber, said resilient wall defining a portion o
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