Collapsible bag with evacuation passageway and method for making the same
AssigneeThe Coca-Cola Company
InventorsSimon J. Richter, Alva C. Cobb
Life of this patent
Estimating the term…
Abstract
A collapsible bag for use in containing and dispensing a liquid, such as in a bag-in-box arrangement, and a method for making the bag, wherein an elongated reinforcing strip is attached to the outside surface of the inner bag layer of one of the bag walls and extends from adjacent to the spout to remote therefrom, and a plurality of grooves are provided in the strip and also in the portion of the inner bag layer of the bag wall attached to the reinforcing strip, thus providing liquid passageways inside of the bag to achieve complete withdrawal of the liquid from the bag as the bag collapses, without the expense and complication of having to insert a separate dipstrip member into the bag and to connect it to the spout.
Claims29
A collapsible bag for use in containing and dispensing a liquid comprising:
- (a) a liquid tight bag having a flexible bag wall and wherein said bag wall includes at least a pair of separate bag wall layers including an inner bag layer and an outer bag layer;
- (b) a spout attached to said bag wall and said spout and bag wall having a spout opening therethrough in liquid communication with the inside of said bag;
- (c) an elongated reinforcing strip sealed to an outside surface of said inner bag layer of said bag wall and extending from adjacent to said spout to a position remote from said spout;
- and
- (d) said reinforcing strip including at least one elongated groove therein which also exists in the portion of said inner bag layer of said bag wall attached to said reinforcing strip, said groove providing at least one elongated liquid passageway inside of said bag in liquid communication with said spout opening, said at least one passageway having a depth and a width such that as said bag wall collapses during dispensing of liquid from the bag, the bag wall can not collapse into and block said passageway, such that said passageway remains open to achieve complete withdrawal of liquid from said bag as said bag collapses.
A bag comprising:
- (a) a liquid-tight, collapsible bag wall including an inner layer and an outer layer;
- (b) a spout sealed to said bag wall;
- (c) an elongated reinforcing strip sealed to the outside surface of said inner layer of said bag wall and having a proximal end adjacent to said spout, and said strip and the portion of said inner layer of said bag wall sealed thereto having a plurality of elongated grooves therein providing a plurality of elongated liquid passageways inside of said bag in liquid communication with said spout.
A method for making a collapsible bag for use in containing and dispensing a liquid comprising the steps of:
- (a) forming a collapsible bag with a liquid-tight, flexible, bag wall including inner and outer layers;
- (b) attaching a spout to said bag wall, said spout having a spout opening therethrough in liquid communication with the inside of said bag;
- and
- (c) sealing an elongated reinforcing strip to the outside surface of the inner layer of said bag wall and extending from adjacent to said spout to remote from said spout, providing at least one elongated groove in both said strip and in the attached portion of the inner layer of said bag wall, said grooves providing the inside of said bag with a liquid passageway in liquid communication with said spout opening and extending from adjacent to said spout to remote from said spout, said passageway having a size such that as said bag wall collapses during dispensing of liquid from the bag, the bag wall cannot collapse into and block said passageway, such that said passageway remains open to achieve complete withdrawal of liquid from said bag as the bag collapses.
Dependencies are inferred from the claim text.