Filtration filter
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United States of America Patent
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Apr 28, 2020
Grant Date -
Jan 25, 2018
app pub date -
Sep 29, 2017
filing date -
Dec 14, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A filtration filter is suitable for performing cross-flow filtration by using a metallic porous membrane. A metallic porous membrane has a membrane portion for filtering filtration objects contained in a fluid and a held portion provided at its outer periphery. A first frame member and a second frame member hold the held portion of the metallic porous membrane there between. The held portion has a bent portion bent to a second principal surface side opposing a first principal surface of the membrane portion. The first frame member is in contact with the held portion at the first principal surface side of the metallic porous membrane. The second frame member is disposed at an inner side portion of the first frame member and is in contact with the held portion at the second principal surface side of the metallic porous membrane.
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