Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Method and system for dynamically representing distributed information
Digital rights management for media streams
Automatic stop and restart device for an engine
Encoder that detects positional information of a moving body generating interference fringes that move in opposite directions
Domain isolation through virtual network machines
Method and system for automatic 3-D image creation
Polymer composites having highly dispersed carbon nanotubes
  Randomly Featured Patents
Covering for a mast structure
Apparatus for filtering solution
Ornamental lighting assembly
Analyzing apparatus
Combined container, lid and carrying handle
Electronic calculating machine
Vibration isolating support device
Charge motion control valve
Fuel transfer system
Apparatus for generating tracking error signals