초록 ▼

A pack of self-opening serially-arranged plastic bags of the "star-seal" type defining eight superimposed wall layers in the bag. Mounting tabs form a part of top portions of each of the eight layers and are positioned in superimposed positions and each includes an aperture for mounting the tabs on

A pack of self-opening serially-arranged plastic bags of the "star-seal" type defining eight superimposed wall layers in the bag. Mounting tabs form a part of top portions of each of the eight layers and are positioned in superimposed positions and each includes an aperture for mounting the tabs on a tab retaining device of a rack in a non-front-side-free manner. Each of the tabs includes a mechanism for rendering the tab detachable and providing a predetermined detaching strength. In one embodiment, each of the tabs are detachable from the rack and in another embodiment, each of the tabs are detachable from the bag. A frangible bond is formed between the rear layer and the front layer of each successive bag in the pack. This frangible bond has a predetermined strength (1) which is greater than the predetermined detaching strength of two of the tabs and (2) is weaker than the predetermined detaching strength of the remaining six tabs to allow the leading bag of the pack (when pulled by a user for removal) to disengage from the pack, while (before disengagement) pulling the succeeding bag in the pack to cause detaching of the two leading of the tabs for self-opening of the succeeding bag.

대표청구항 ▼

1. A pack of self-opening serially-arranged plastic bags particularly suited for use in packaging grocery produce and adapted for being suspended in desired lengths from a rack for being serially self-opened and removed from said rack, each of said bags comprising:integrally formed front and rear wa

1. A pack of self-opening serially-arranged plastic bags particularly suited for use in packaging grocery produce and adapted for being suspended in desired lengths from a rack for being serially self-opened and removed from said rack, each of said bags comprising:integrally formed front and rear walls and gussetted side walls extending inwardly toward each other to terminate in close proximity to each other, said walls having top portions defining an open mouth, and said front and rear walls and said gussetted side walls being further folded over onto each other along a longitudinal axis of said bag to define eight superimposed wall layers in said bag having a front layer, a rear layer and six intermediate layers; a seal of the star seal type securing the bottoms of said eight superimposed wall layers together to close the bottom of said bag; mounting tabs forming a part of said top portion of each of said eight wall layers portion and being in superimposed positions and each including an aperture adapted for mounting said tabs on a tab retaining device of the rack in a non-front-side-free manner, each of said tabs including means rendering said tab detachable and providing a predetermined detaching strength; and a frangible bond between said rear layer and said front layer of each successive bag in said pack, said bond having a predetermined strength (1)which is greater than said predetermined detaching strength of two of said tabs and (2) which is weaker than the predetermined detaching strength of the remaining six tabs to allow a leading bag of said pack, when pulled by a user for removal, to disengage from said pack, while before disengagement pulling a succeeding bag in the pack to cause detaching of the two leading of said tabs for self-opening of said succeeding bag.