Female coupling member suitable for handling high-pressure fluid and pipe coupling having female coupling member
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United States of America Patent
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Oct 3, 2017
Grant Date -
Dec 31, 2015
app pub date -
Jun 19, 2015
filing date -
Jun 26, 2014
priority date (Note) -
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Abstract
Disclosed is a female coupling member which includes a housing having a fluid passage extending therethrough, a valve member selectively opening and closing the fluid passage, and a valve open-closed state indicating member. The valve open-closed state indicating member has a valve open state indicating part and a valve closed state indicating part and is displaced in response to the displacement of the valve member. When a male coupling member is connected to the female coupling member, and when the valve member is in an open position, the valve open state indicating part is visible from the outside of the housing through a window of the housing, whereas, when the valve member is in a closed position, the valve closed state indicating part is visible from the outside of the housing through the window.
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