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
Display module
Image pickup device with a plurality of pixels and an AD conversion circuit
Triazole derivatives as ghrelin analogue ligands of growth hormone secretagogue receptors
Parallel active optical cable
Scalable encoding apparatus, scalable decoding apparatus, scalable encoding method, scalable decoding method, communication terminal apparatus, and base station apparatus
Image sensor and method for fabricating the same
Active pellet without chemical additives
  Randomly Featured Patents
Wafer carrier
Plate or similar article
Powder dosing device
Power tool with lubricating system
Crosstalk identification for spectrum management in broadband telecommunications systems
Character-input method and medium and apparatus for the same
Signal amplification device with circuit maintaining potential of input side of current mirror circuit at predetermined value
Pyridone compounds as inhibitors of bacterial type III protein secreation systems
Method and apparatus for generating high amperage pulses from an A-C power source
Process for the preparation of halogenoalkyldialkyl chlorosilane