Patent ID: 9321559
Filing Date: 2016-04-26
CPC Classification: B65D

Claim Text:
1. A flexible package bag, comprising: a main package body composed of plastic laminate films; a film-shaped non-return nozzle configured to prevent penetration of ambient air into the bag, the non-return nozzle having a base end portion fused to a first side of the package body to allow liquid flow from the package body through the non-return nozzle; and a seal section defined between two opposing plastic laminate films of the package body and disposed at a position of the package body including a lower end portion of a fused section of the base end portion, wherein the non-return nozzle comprises: a tip portion configured to be removable to provide an opening for liquid to exit; a pouring channel connected to the tip portion to allow liquid to be poured therethrough; and a liquid reserving portion disposed along the lower end portion of the base end portion for temporarily holding liquid next to the pouring channel to decrease a rate of liquid flow when liquid is being poured, and wherein the seal section extends in a first direction towards an upper end portion of the base end portion such that a first end portion of the seal section, which creates a dam with respect to the lower end portion of the non-return nozzle to temporarily hold liquid flown therein, is disposed above the lower end portion of the base end portion and on an extend line of a lower edge of the pouring channel.