Apparatus for placing a web of film under tension
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United States of America Patent
Stats
-
May 16, 1989
Grant Date -
N/A
app pub date -
Jul 24, 1987
filing date -
Jul 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for placing a folded web of film under tension comprising at least one pair of rollers, a first side of the folded web of film being fed between the pair of rollers, the pair of rollers being mounted out of parallel to the first side of the folded web of film and pulling the first side of the folded web of film in a first direction, and a member for preventing a second side of the folded web of film from moving in the first direction. Preferably, the member biases the second side of the folded web of film in a second direction opposite the first direction. A method for placing a folded web of film under tension is also provided.
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