KARLVILLE DEVELOPMENT LLC Patent applications |
Patent application number | Title | Published |
20120270712 | NOVEL PLASTIC BAG, METHODS FOR MAKING BAGS AND IMPROVED POUCH MACHINE - Method and apparatus for making a plastic bag or pouch wherein a plastic web is moved in a longitudinal direction and a tape made from an elongated plastic film is fed to the web. The tape is made of a pair of elongated attachment lanes of complementary fastening elements sealed to the film to function as attachable-detachable closures. The lanes extend parallel and are spaced apart. A perforation line is formed in the film between lanes, and a flange is defined on one side of only one of said lanes. The lanes are separated and pairs of lengths are cut off said lanes. The pairs of cut off lengths are sealed on a diagonal to the moving web in different directions to form V-shaped closures with the lane having the flange on one side thereof sealed to the web by the flange only. Bags are formed from the moving web. An intermediate product is described consisting of a narrow substrate having V-shaped closures spaced longitudinally for placement on a moving web in a bag making machine. | 10-25-2012 |
20120035036 | NOVEL PLASTIC BAG, A NOVEL INTERMEDIATE PRODUCT, METHODS FOR MAKING THE BAG AND INTERMEDIATE PRODUCT, AND IMPROVED POUCH MACHINE - An intermediate product for making bag closures wherein an elongated substrate has formed on it a pair of elongated attachment lanes having complementary fastening elements to provide an attachable-detachable closure. The lanes extend parallel and are spaced apart. A perforation line is formed in the substrate between the lanes. The tape is folded by being pulled through a slot along the perforation line to place said lanes in face-to-face engagement. The product is used in a method for making bags or pouches and on a machine modified to seal partially one side of the closure to one side of the mouth of bags or pouches being made and to seal completely the other side of the closure to the other side of the bag of pouch mouth. The perforation is separated to separate the lanes and create an attachable-detachable closure. Interlocking projections can be included in the closure. | 02-09-2012 |