Fiber reinforced plastic pipe and filament winding apparatus
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United States of America Patent
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May 18, 2004
Grant Date -
Oct 3, 2002
app pub date -
Mar 25, 2002
filing date -
Mar 27, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A FRP pipe comprising a helix winding layer formed by cylindrically winding reinforced fibers, wherein the helix winding layer has two ends and an axis and the reinforced fibers forming the helix winding layers are wound at an angle relative to the axis and hoop winding layers formed at each end of the helix winding layer by winding reinforced fibers at each end wherein the hoop layer are formed from the same continuous reinforced fibers, and the continuous reinforced fibers forming the hoop winding layers extend between the ends at an angle that is the same as the angle of the reinforced fibers forming the helix winding layer.
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