Valve disc and combination filling device using the valve disc, and tube, pipe jointing device, connection port manufacturing device, and pipe jointing system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 27, 2007
Grant Date -
Mar 25, 2004
app pub date -
Jun 25, 2001
filing date -
Jun 23, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve element including a pair of end faces, at least a part of which is constituted by an elastic material, characterized in that the valve element is provided with a first slit that is opened to a first end face and is not opened to a second end face of the pair of end faces, and a second slit that crosses with the first slit inside the valve element, is opened to the second end face and is not opened to the first end face, and the valve element is deformed such that inner surfaces of the second slit are brought into press contact with each other. This valve element is simple in structure, easy in operation, serviceable for a long period, and capable of preventing leakage of liquid surely.
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