TANK
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United States of America Patent
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Issued Date -
Jul 20, 2023
app pub date -
Jan 17, 2023
filing date -
Jan 18, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A tank comprises: a liner including a circular cylindrical body part having a center axis and a dome part placed at each of opposite ends of the body part; and a reinforcing layer placed on the liner and containing fiber. The reinforcing layer includes a hoop layer placed on the body part and a helical layer placed across an area on the hoop layer and on the dome part. The hoop layer includes a hoop body layer and a hoop end layer connected to the hoop body layer and located at an end portion of the hoop body layer in an axis direction along the center axis. The hoop end layer has a shape projecting externally further in a radial direction of the body part than the hoop body layer, and includes an apex portion located at the outermost position in the radial direction and a tilted surface extending from the apex portion toward an outer surface of the dome part and having a shape conforming to the shape of the outer surface.
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