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
Wristwatch
LED light source lamp having drive circuit arranged in outer periphery of LED light source
Printing control method and printer for printing on a label
Distributed mobile access point acquisition
Method and system for detecting target objects
Using location based services for determining a calling window
Arbitration for memory device with commands
  Randomly Featured Patents
Cosmetic or dermatological preparations based on emulsifiers which are free from ethylene oxide and propylene oxide, for the preparation of microemulsion gels
Optical recording method, optical recording device, master medium exposure device, optical information recording medium, and reproducing method
Projector for the projection of a panoramic image and camera for the manufacture of films for a projector of this kind
Headset
Calculator and apparatus for macrophotography
Apparatus for driving medical appliances
Reverse flow cooling for fan motor
Micro-actuator including U-shaped frame and metal support frame, and manufacturing method thereof
Preplasticizing injection apparatus
Water craft propelled by a double-flipper device actuated by a pedal mechanism