초록 ▼

A hood-like top closure on a bag top has end portions extending beyond opposite sides of the bag and the end portions are closed against leakage. The top closure may have a zipper separably connecting a pair of attachment flanges one of which extends along and is secured to one face of the bag top a

A hood-like top closure on a bag top has end portions extending beyond opposite sides of the bag and the end portions are closed against leakage. The top closure may have a zipper separably connecting a pair of attachment flanges one of which extends along and is secured to one face of the bag top along the top opening and the other of which flanges is secured to a second face of the bag top along the opening. More particularly, the end portions of the attachment flanges are adhesively bonded so as to prevent sifting or leakage therethrough. A method of and apparatus for making the bag are also provided.

대표청구항 ▼

A bag including a collapsed tubular body with a top providing an opening extending from side-to-side of the bag, and comprising: a hood-like top closure secured to said bag body over said opening and having end portions extending to a substantial distance beyond opposite sides of the bag body; means

A bag including a collapsed tubular body with a top providing an opening extending from side-to-side of the bag, and comprising: a hood-like top closure secured to said bag body over said opening and having end portions extending to a substantial distance beyond opposite sides of the bag body; means closing said end portions against leakage; said top closure having a zipper separably connecting a pair of attachment flanges one of which extends along and is secured to one face of the bag top along said opening and the other of which flanges is secured to a second face of the bag top along said opening; and said means closing said end portions against leakage comprising adhesive bonding said flanges in said end portions.