Fluid control valve device
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United States of America Patent
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May 2, 2017
Grant Date -
Apr 28, 2016
app pub date -
Oct 14, 2015
filing date -
Oct 24, 2014
priority date (Note) -
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Abstract
A fluid control valve device includes a seal part disposed to a valve part. The seal part is elastically deformable and contacts a valve seat when a fluid passage is closed to intercept fluid from passing through the fluid passage. The valve seat has a surface opposing the seal part, a first projection part projected from the surface toward an upper surface of the seal part and having an annular shape, and a second projection part projected from the surface toward the upper surface of the seal part on a radially outer side of the first projection part. When the fluid passage is closed by the valve part, the first projection part is in tight contact with the seal part, and the second projection part is configured to collide with the seal part.
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