Valve
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United States of America Patent
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-
Oct 16, 2012
Grant Date -
Aug 9, 2007
app pub date -
Dec 15, 2004
filing date -
Dec 17, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A valve includes a valve body (1, 2), a tube (3) made of an elastomer extending through the inside of the valve body, and a roller (23) and a pressing surface (14) disposed facing each other across the tube (3). The roller (23) can be brought close to the pressing surface (14) to collapse the tube (3) between the roller (23) and pressing surface (14) and close the flow passage in the tube (3), and the roller (23) can be moved along the tube (3) to make a collapsed position where the tube (3) is collapsed by the roller (23) and the pressing surface (14) move along the flow passage axis of the tube (3) while maintaining the flow passage in the closed state.
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