Reclosable bags, apparatus and method
Guide for zippered film in a form, fill and seal packaging machine
Method and apparatus for making reclosable bags in a form, fill and seal machine
Steering, joining and guiding mechanism for zippered film
Zippered film feed
Stretcher for package forming
Method and apparatus for making reclosable bags with fastener strips in a form fill and seal machine
Method and apparatus for guiding a zippered film in form, fill and seal package making machines
Method and apparatus for smoothing of bag making material in form, fill and seal machines
Web control means and method for bag making machine
ApplicationNo. 226288 filed on 04/11/1994
US Classes:53/412, Package opening device (e.g., tear strip)53/133.4, Reclosable53/451, Vertically formed, filled, and sealed tubular package53/551, Vertically disposed tube53/552Concurrent severing
ExaminersPrimary: Culver, Horace M.
Attorney, Agent or Firm
International ClassesB65B 061/18
AbstractIn a method for forming reclosable packages on a conventional form-fill-and-seal machine, a "Y-type" zipper strip is fed toward and longitudinally down the filling spout thereof. A thermoplastic film is wrapped around the filling spout enclosing the zipper strip, and the lateral edges of the film are bonded together to form a longitudinal seam. The zipper strip webs are attached by sealing bars to the inside of the tube so formed from the thermoplastic film between the fill tube and the sealing bars. At intervals, transverse seams are formed to produce individual reclosable packages, which may also be separated from one another. The packages are filled with product during the course of their manufacture.