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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0523801 (1990-05-15) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 403 인용 특허 : 0 |
A valve having a disposable portion, which comes into contact with the fluid being controlled by the valve. The disposable portion has a valving chamber and a flexible membrane, which can seal off a mouth that is located on a protrusion in the chamber. The disposable portion is held by a fixture whi
A valve having a disposable portion, which comes into contact with the fluid being controlled by the valve. The disposable portion has a valving chamber and a flexible membrane, which can seal off a mouth that is located on a protrusion in the chamber. The disposable portion is held by a fixture which uses a control gas to apply pressure to the flexible membrane. The disposable portion may also have a pressure conduction chamber, which may be used to measure the flow rate of liquid through the disposable portion.
A method for providing a valve in a line that delivers liquid, such that the portion of the valve that comes into contact with the liquid in the line may be easily disposable, the method comprising: providing a first flexible membrane having a first side and a second side; placing a housing against
A method for providing a valve in a line that delivers liquid, such that the portion of the valve that comes into contact with the liquid in the line may be easily disposable, the method comprising: providing a first flexible membrane having a first side and a second side; placing a housing against the first side of the flexible membrane, the housing including a valving chamber and a liquid path passing through the housing from a first port through the valving chamber to a second port so as to provide liquid communication between the valving chamber and the line, the path entering the valving chamber at first and second mouths, wherein at least one of said mouths inside the valving chamber protrudes from one side of the housing towards the membrane; holding the first flexible membrane and the housing against a fixture, such that the second side of the membrane is pressed against the fixture, and the first flexible membrane is sealed against the housing around the valving chamber; providing pressure to the second side of the first flexible membrane so as to force the first flexible membrane against the protruding mouth; relieving pressure on the external side of the first flexible membrane so as to permit relatively unrestricted flow through the liquid path through the valving chamber; and removing the first flexible membrane and the housing from the fixture.
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