| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a disposable liquid supply pump capable of surely supplying a liquid in a sealed container in a simple and compact structure. <P>SOLUTION: The disposable liquid supply pump includes: a case; a liquid feed part connected with the case; a cylinder provided in the case and filled with the liquid; a push rod provided to be movable in the cylinder and including a saw-shaped protrusion along a circumference; a diaphragm provided in the case for moving the push rod via a pneumatic pressure in the case when pressurized so as to feed the liquid in the cylinder to the outside through the liquid feed part; and a check valve provided in the case for assuring airtightness in the case when the diaphragm is pressurized and also causing the open air to flow into the case when the diaphragm is depressurized. <P>COPYRIGHT: (C)2012,JPO&INPIT |
