Roller pair for stretching strips of filter material
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United States of America Patent
Stats
-
Dec 18, 2007
Grant Date -
Aug 17, 2006
app pub date -
May 20, 2003
filing date -
Jun 20, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Roller pair for tensioning strands of filter material in the manufacture of cigarette filters with a first roller made of metal which is rotatably driven by a drive and a second roller of which the surface consists of a resilient material, the two rollers being mounted on one side on a frame or the like and the second roller being pivotally mounted about a horizontal axis perpendicular to its longitudinal axis, away from the first roller and towards the latter, and an actuation device for pivoting the second roller, the second roller able to be driven by a drive via a second drive shaft and an articulated shaft and being mounted such that the size of the gap between the rollers can be altered along its length to adapt to the thickness of the material.
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