초록 ▼

A plurality of collapsible bags are integrally formed in a tubular blank of a flexible material with a perforated portion disposed between adjacent bags to facilitate separating them. When formed, adjacent bags are connected in end-to-end relationship and lie generally flat such that the elongate bl

A plurality of collapsible bags are integrally formed in a tubular blank of a flexible material with a perforated portion disposed between adjacent bags to facilitate separating them. When formed, adjacent bags are connected in end-to-end relationship and lie generally flat such that the elongate blank may be wrapped around itself forming a roll of the bags or the bags may be pleated or accordion folded flat within a container whereby they may be individually removed from the container for use. Handles are preferably integrally formed with each bag extending from adjacent the top wall of the bag. A spout is preferably also integrally formed with the bag to facilitate filling and emptying of the bag. The bags are particularly suited to contain liquids or frozen liquids and are preferably made of a food-grade plastic film material suitable to contain various foods or beverage products. The bags may each be received in a separate container to support a filled bag. To facilitate emptying a bag received in a container, the container may be received on a base tray having an inclined surface to tilt the container so that the contents of the bag collect at a lowest portion of the bag. A spout support may be provided to hold the spout open and to prevent the bag from collapsing around the spout during filling or emptying of the bag. To facilitate lifting, hanging or moving a bag, a bag carrier may be provided having a U-shaped channel constructed to receive a rod over which the handles of the bag are received.

대표청구항 ▼

[ We claim:] [1.] A supply of collapsible bags comprising:a plurality of bags formed in an elongated tubular blank of a flexible material;a perforated portion between adjacent bags of the blank to facilitate separating them;each bag of the tubular blank when collapsed having a pair of flat overlying

[ We claim:] [1.] A supply of collapsible bags comprising:a plurality of bags formed in an elongated tubular blank of a flexible material;a perforated portion between adjacent bags of the blank to facilitate separating them;each bag of the tubular blank when collapsed having a pair of flat overlying panels of the tubular blank that form a pair of opposite sidewalls of the bag and a pair of folded gusset panels extending inwardly between the flat panels from the opposite side edges of the flat panels and adapted to form two other opposite sidewalls of the bag, adjacent one end of the panels each flat panel and the adjacent gusset panel being connected together by a heat seal along lines extending diagonally inwardly from the opposite side edges of the panel from said one end of the panels, said diagonal lines of connection terminating at their laterally inner ends in spaced-apart relation laterally outwardly of the inner folded edges of the gusset panels and at points spaced from said one end of the panels, each flat panel and the adjacent gusset panel also being connected together by a heat seal along a line extending lengthwise of the tubular blank from said points of termination of the diagonal lines to said one end of the panels and each flat panel and the adjacent gusset panel being severed along lines spaced laterally outwardly of and generally coextensive in length with said lengthwise extending heat seal lines of connection to form when the tubular blank is opened a top wall with a spout therein at said one end of the panels, the portions of the flat and gusset panels adjacent said one end of the panels which lie laterally outwardly of the lines of severing being connected together by a heat seal along lines generally transverse to the lines of severing to form integral open loop handles of the bag, adjacent the other end of the panels each flat panel and the adjacent gusset panel being connected together by a heat seal along lines extending generally diagonally inwardly from the opposite side edges of the panels toward said other end of the panels to form when the tubular blank is opened an integral and generally flat bottom wall, when the tubular blank is collapsed each bag folds into a generally flat and compact bag and each bag when separated from the tubular blank and expanded, having a generally cubical configuration with integral and generally rectangular top, flat, bottom and sidewalls and with homogeneously integral open loop handles and a homogeneously integral spout.