Pipe flange forming method
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United States of America Patent
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Sep 17, 2013
Grant Date -
Jun 28, 2012
app pub date -
Dec 22, 2010
filing date -
Dec 22, 2010
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Abstract
A method for forming a flange at an open end of a pipe comprises increasing the diameter of the open end of the pipe to form a radially-enlarged pipe wall. Radially-symmetric portions of the radially-enlarged pipe wall are then removed so as to form at least two opposing projecting portions, which are then bent outwardly so as to be at least substantially orthogonal to the pipe, thereby forming the flange on the pipe.
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