Bag with opening and reclosing feature
AssigneeBemis Company, Inc.
InventorWilliam M. Bogart
Life of this patent
Estimating the term…
Abstract
A bag having a top closure adapted to be opened for opening the bag at its mouth and for reclosing the bag, comprising a closure strip extending around the mouth of the bag from one wall of the bag to the other overlying and sealed to the outside of the walls. The ends of the strip project outwardly beyond the sides of the bag and form ears. A closure element carried by the strip extends lengthwise of the strip and a tearing member carried by the strip extends lengthwise thereof above the mouth edges of the walls and above the closure element. The bag is adapted to be opened by grasping one end of the tearing member and pulling it to tear the strip, and the portions of the closure element in the ears projecting outwardly beyond the sides of the bag are adapted to be bent to reclose the bag.
Claims21
A bag having opposed walls and a top closure closing the mouth of the bag adapted to be opened for opening the bag at its mouth and for reclosing the bag, said top closure comprising closure strip means extending around the mouth of the bag from one wall of the bag to the other overlying and sealed to the outside of the walls, the ends of the closure strip means projecting outwardly beyond the sides of the bag and forming ears, a pair of closure elements carried by the strip means extending lengthwise thereof, each comprising a length of wire, and a tearing member carried by the strip means extending lengthwise thereof above the mouth edges of the walls and above the closure elements, the strip means, in condition as sealed to the walls, being of uniform width along its entire length and comprising two plies of material sealed together, the tearing member and the closure elements being between said plies, extending the entire length of the strip means, and having ends generally flush with the ends of the strip means, the bag being adapted to be opened by grasping the tearing member at an end thereof and pulling it to tear the closure strip means, the portions of the closure elements in the ears projecting outwardly beyond the sides of the bag being adapted to be bent to reclose the bag.
A bag having opposed walls, gussets intucked between the bag walls at the top of the bag, and a top closure closing the mouth of the bag adapted to be opened for opening the bag at its mouth and for reclosing the bag, said top closure comprising closure strip means extending around the mouth of the bag from one wall of the bag to the other overlying and sealed to the outside of the walls, the ends of the closure strip means projecting outwardly beyond the sides of the bag and forming ears, a closure element carried by the strip means extending lengthwise thereof, and a tearing member carried by the strip means extending lengthwise thereof above the mouth edges of the walls and above the closure element, the bag being adapted to be opened by grasping the tearing member at an end thereof and pulling it to tear the closure strip means, the portions of the closure element in the ears projecting outwardly beyond the sides of the bag being adapted to be bent to reclose the bag, the strip means on its side facing the walls of the bag being heat-sealable and treated so that it is adapted to adhere more strongly to the bag than to itself and being permanently heat-sealed to the walls of the bag, the end portions of the strip means in the ears being releasably heat-sealed together, the gussets on the outside surfaces thereof having a relatively low-strength thermoplastic adhesive thereon, the two halves of each gusset being heat-sealed together at the top of the bag, this heat-sealing of the gussets in conjunction with the permanent heat-sealing of the strip means to the bag and the releasable heat-sealing together of said end portions of the strip means in the ears effecting a substantially sift-proof closure of the bag while enabling the two halves of the gusset to be separated, after the bag has been opened, for forming one of the gussets into a pouring spout.
Dependencies are inferred from the claim text.