Web creaser
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 14, 1995
Issued Date -
N/A
app pub date -
May 23, 1995
filing date -
Nov 3, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for forming one or more longitudinal creases in a web of material. The web is formed into a tube in a vertical form, fill and seal apparatus, and then passed over an internal guide. A pair of pinch rolls are located adjacent the guide, and a portion of the web is directed between the pinch rolls to crease the film as it is advanced. Direction of the film between the pinch rolls is accomplished by a pair of protrusions extending from the internal guide on opposite sides of the pinch rolls. The thus-creased tube is then passed over opposite, spaced forming plates at the bottom of the guide and then tucked and sealed.
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