Resources Contact Us Home
Method for sealing zipper assembly to bag making film at three or more points

Image Number 4 for United States Patent #6993886.

A method for sealing a zipper assembly to bag making film at three or more points. The zipper assembly comprises a short zipper flange and a long zipper flange. The short flange is joined to one wall of the package while the long flange is joined to both walls of the package to define a product space in which the product is contained. Both the short and long zipper flanges are sealed to the bag making film at a first sealing station prior to folding of the film. After folding, the long zipper flange is sealed at one or more zones of joinder to the other side of the folded film. If the zipper assembly is attached in proximity to the fold line, then the second sealing operation is performed before filling and the bag is filled through the package bottom. If the zipper assembly is attached near the edge of the web of bag making film, then the second sealing operation is performed after the filling operation.

  Recently Added Patents
SMS transport resource control
Antitumoral compounds
Method and apparatus for representing sensory effects and computer readable recording medium storing user sensory preference metadata
Hair care composition
Estimating travel time
Method and apparatus for modeling computer program behaviour for behavioural detection of malicious program
Process for shaping polymeric articles
  Randomly Featured Patents
Level shift circuit, and driver and display system using the same
Picture display apparatus for displaying fringed characters on an image
Helmet having rotatable shield
End cap for a table leg
Method and apparatus for servo track writing by track following on a dedicated servo disk on a fluid spindle bearing
Method for plasma coating an object of elastomeric material
Shaking table sorter operating by specific gravity
Composite membrane for a capacitor
Method and apparatus for predicting a predicate based on historical information and the least significant bits of operands to be compared
Apparatus for stretching dough