Pressurized water container with water chamber replacement arrangement

• US 20080257916A1
• Filed: 04/17/2007
• Published: 10/23/2008
• Est. Priority Date: 04/17/2007
• Status: Active Grant

• Current Assignee: Hsu-Pin Chang
• Original Assignee: Hsu-Pin Chang
• Inventors: Chang, Hsu-pin
• Granted Patent: US 7,753,239 B2
• Time in Patent Office: Days
• US Class Current: 222/394
• CPC Class Codes: B67D 1/0462 Squeezing collapsible or flexible beverage containers, e.g. bag-in-box containers

Abstract

A pressurized water container for use with a drinking water purification system includes a housing having a top opening and lower first and second valves; a sealing assembly releasably mounted on the opening of the housing; a flexible upper water chamber including a top opening in communication with the opening of the housing; a lower pressure chamber having a rigid top surface fixedly secured to an inner surface of the housing wherein pressurized air is adapted to feed into the pressure chamber through the second valve for storage; an air chamber between the water chamber and the pressure chamber; and a tube interconnecting the first valve and a bottom surface of the air chamber, the tube having a port in communication with the pressure chamber, and a hand wheel for either opening or closing the port. Replacement of the water chamber is made easy by detaching the sealing assembly.

Claims

1. A pressurized water container for use with a drinking water purification system, comprising:

a housing having a top opening and lower first and second valves;

a sealing assembly releasably mounted on the opening of the housing;

a flexible upper water chamber in the housing, the water chamber comprising a top opening in communication with the opening of the housing;

a lower pressure chamber having a rigid top surface fixedly secured to an inner surface of the housing wherein pressurized air is adapted to feed into the pressure chamber through the second valve for storage;

an air chamber between the water chamber and the pressure chamber; and

a tube interconnecting the first valve and a bottom surface of the air chamber, the tube having a port in communication with the pressure chamber, and a hand wheel disposed externally of the housing for either opening or closing the port;

wherein;

in response to opening the opening of the housing and the port the pressurized air in the pressure chamber is adapted to flow into the air chamber through the tube to expand the air chamber and compress the water chamber for discharging water through the opening of the housing; and

in response to opening the opening of the housing and closing the port water is adapted to feed into the water chamber through the opening of the housing to store by pushing down the lower surface of water chamber and compressing the air chamber.

2. The pressurized water container of claim 1, wherein the water chamber further comprises a flexible sealing member mounted around the opening thereof, and wherein the housing further comprises a rim at the opening thereof.

3. The pressurized water container of claim 2, wherein the sealing assembly comprises a cap including a central opening in communication with the opening of the water chamber, and a projecting bottom, and wherein the bottom of the cap is adapted to sealingly engage with the sealing member by flexibly deforming the sealing member.