BALL VALVE DEVICE AND METHOD FOR FORMING A BALL RETAINER IN A CHECK VALVE
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United States of America Patent
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Issued Date -
Dec 1, 2011
app pub date -
Jan 25, 2011
filing date -
May 28, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The ball valve device comprises a tubular body in metal material, having a cylindrical wall conformed with cup-shaped internal protrusions to retain a ball shaped valving member, preventing the same valving member to be entrained by a fluid flowing through the valve device. The internal protrusions are performed by radially deforming inwards the cylindrical wall of the tubular body at one or more angularly spaced apart deformable areas. The tubular body provided with the ball retaining protrusions is suitable for any valve device, such as ball check valves pumping units for and/or ducts.
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