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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0793029 (1985-10-30) |
우선권정보 | JP-0164306 (1984-10-30); JP-0147076 (1985-09-26) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 30 인용 특허 : 0 |
A check valve for a water bag, balloon toy, or the like, comprising a flat fluid pipe of plastic film open at its base end and its tip end. A flat valve body is disposed in the flat pipe and is closed along its lateral sides which are sealed to closed sides of the fluid pipe. The valve body is also
A check valve comprising: a fluid pipe formed in a flat shape, said fluid pipe being closed its sides, open at its base end and its tip end and being made of plastic film; at least one valve body, each of said valve bodies being made of plastic film, said valve being formed as a flat pouch closed al
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