Flange sleeve, method for the production thereof and bending tool for producing flanges on a sleeve
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United States of America Patent
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Feb 13, 2007
Grant Date -
Apr 29, 2004
app pub date -
Jan 31, 2002
filing date -
Feb 14, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A flange sleeve comprising at lest one flange formed thereon, having no gap at the joint or having a controllably adjusted width of the gap at the joint. The flange has two crowding recesses at least in the metal coating thereof in at least two points distributed over the flange in the direction of the periphery. According to the method for producing the flange sleeves, the edge of the flange is bent. At least two crowding recesses in at least two points distributed over the flange in the direction of the periphery are made at least in the metal coating thereof, the recesses preferably being made by bending the edge of the sleeve. The invention also relates to a bending tool and a bending device.
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