Liquid container system

• US 5,433,347 A
• Filed: 06/29/1994
• Issued: 07/18/1995
• Est. Priority Date: 12/17/1990
• Status: Expired due to Term

• Current Assignee: The Coca-Cola Company
• Original Assignee: The Coca-Cola Company
• Inventors: Richter, Simon J., Paisley, Gary V.
• Primary Examiner(s): Kashnikow, Andres
• Assistant Examiner(s): DEROSA, KENNETH
• Application Number:
  US08/268,055
• Time in Patent Office: 384 Days
• Field of Search: 222/105, 222/183, 222/386.5, 222/94, 222/95, 222/129.1, 220/461, 220/462, 215/1 C, 215/12.2, 428/35.2, 428/34.7, 428/12
• US Class Current: 222/105
• CPC Class Codes: B65D 1/0215 multilayered B65D81/3837 takes precedence
• CPC Class Codes: B65D 23/104 Handles formed separately
• CPC Class Codes: B65D 51/242 provided with means for facilitating lifting or suspending of the container
• CPC Class Codes: B65D 83/0055 Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
• CPC Class Codes: B67D 1/0078 Ingredient cartridges
• CPC Class Codes: B67D 1/0079 having their own dispensing means
• CPC Class Codes: B67D 1/0462 Squeezing collapsible or flexible beverage containers, e.g. bag-in-box containers
• CPC Class Codes: B67D 2001/0817 with a venting orifice
• CPC Class Codes: Y10S 215/90 Collapsible wall structure
• CPC Class Codes: Y10S 215/902 Vent
• CPC Class Codes: Y10S 229/942 Nonreusable box having means to facilitate collapsing or disassembling for disposal or for recycling of the box material, e.g. "knockdown" type
• CPC Class Codes: Y10T 428/1334 Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]

Abstract

A liquid container comprising a multi-layer container including a wall made up of a main layer and a separate, delaminatable inner layer, a container opening at the top for filling and evacuation and a plurality of air vents extending completely through the main layer and terminating at the inner layer, such that the inner layer delaminates when liquid is evacuated by suction.

Claims

1. An article comprising:

(a) a two layer liquid container including a wall, a container opening at a top end of said container for filling and evacuating said container surrounded by a container neck, and a plurality of air vents extending partway through said wall;

(b) said wall consisting of a main, outer, blow molded PET plastic layer and a separate, delaminatable inner blow molded PET plastic layer such that said inner layer can separate from said main layer when liquid is evacuated by suction from said container and air flows in through said air vents; and

(c) said air vents extending completely through said main layer and terminating at said inner layer and said air vents being permanently open to atmosphere, such that air can flow through said air vents and in between said inner and main layers as liquid is withdrawn by suction from said container.