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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0776630 (1977-03-11) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 24 인용 특허 : 0 |
A control circuit is disclosed for a sleeve-type pinch valve and which control circuit utilizes an internal vacuum condition in a main supply line in which the valve is disposed to retain the elastomeric sleeve of the valve open. A check valve is provided in the control circuit to prevent backflow o
In a fluid flow system including main flow line means connected to a fluid supply and having a discharge end, means to pump fluid from said supply toward said discharge end, said main flow line means including normally open valve means between said supply and said pump means and including a housing
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