Apparatus for sealing a web of film in a packaging
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 15, 1989
Grant Date -
N/A
app pub date -
Oct 17, 1988
filing date -
Oct 17, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for sealing a web of film in a packaging machine. The apparatus includes a sealing bar for heating a web of film to a temperature sufficient to melt at least a portion of the web of film. The sealing bar includes a surface that directly contacts the web of film and does not include a release layer. The surface includes thereon a measuring member for measuring the temperature of the molten area of the film. The apparatus further includes a cooling member for cooling the melted portion of the film to its crystallization point during a cycle time of the packaging machine.
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