Dispensing system and a refill pouch

• US 4,513,884 A
• Filed: 04/05/1982
• Issued: 04/30/1985
• Est. Priority Date: 04/05/1982
• Status: Expired due to Fees

• Current Assignee: CCL Technologies Incorporated
• Original Assignee: Enviro-Spray Systems Incorporated
• Inventors: Magid, David J.
• Primary Examiner(s): Marmor, Charles A.
• Application Number:
  US06/365,552
• Time in Patent Office: 1,121 Days
• Field of Search: 222/94-95, 222/131, 222/183, 222/325-327, 222/386.5, 222/399, 222/394
• US Class Current: 222/94
• CPC Class Codes: B65D 83/625 the propellant being generated by a chemical or electrochemical reaction for pressure gas in portable fire extinguishers A62C13/02

Abstract

The refill pouch is constructed of a flexible pouch containing a product to be dispensed and an expandable bag containing a gas generating system for expanding the bag. Upon placement in a container with a valve, the pouch can be opened and the gas generating system activated. After dispensing of a product, the container can be emptied and a fresh refill pouch placed within the container.

Claims

1. A reusable pressurized dispensing system adapted for use in seriatum fashion with a plurality of pouches which contain therein the product to be dispensed and which comprises

container means including an opening therein adapted to house a pouch including therein the product to be dispensed;

removable closure means adapted to cover said container opening;

outlet means disposed in said removable closure means through which the product within the pouch is dispensed;

a sealed inflatable pouch including therein a prepackaged flowable product to be dispensed and which is disposed within said container means, said inflatable pouch being adapted to define a liner within said container upon expansion thereof;

a sealed expandable pressure generating bag disposed within said inflatable pouch for exerting pressure on said flowable product within said pouch;

means within said bag for expanding said bag within said pouch to dispense said prepackaged flowable product from said pouch through said container outlet means;

means for activating said bag expanding means disposed within said pouch;

means for generating additional bag expansion as product is dispensed from said pouch through said container outlet; and

means for opening said pouch to facilitate communication of said flowable product contained therein with said outlet means whereby said flowable product may be dispensed from said container.

2. A reusable pressurized dispensing system in accordance with claim 1 wherein said inflatable pouch is flexible so as to substantially conform to the shape of the inner portion of said container means upon expansion thereof.

3. A reusable pressurized dispensing system in accordance with claim 1 wherein said container means is substantially cylindrical in shape having an opening in the top thereof and wherein said removable closure means has a circular shape and is adapted to be fastened to the top of said container means.

4. A reusable pressurized dispensing system in accordance with claim 1 wherein said container means includes a second opening therein suitable for insertion of a piercing means therethrough adapted to puncture said expandable pouch prior to removal thereof.

5. A reusable pressurized dispensing system in accordance with claim 1 which further comprises a valve means disposed in said outlet means for controlling the dispensing of said prepackaged flowable product from said container.

6. A refill pouch containing a prepackaged product to be dispensed adapted for use in association with a pressurized dispensing container having an opening therein to facilitate insertion and housing of the pouch therein, a closure means for the opening and an outlet in the closure for dispensing the prepacked product which comprises:

a sealed inflatable pouch including therein a prepackaged flowable product to be dispensed and which is adapted to be disposed within a substantially pressure resistant container, said inflatable pouch being adapted to define a liner within said container upon expansion thereof;

a sealed expandable pressure generating bag disposed within said inflatable pouch for exerting pressure on said flowable product within said pouch;

means within said bag for expanding said bag within said pouch to dispense said prepackaged flowable product from said pouch through a container outlet;

means for activating said bag expanding means disposed within said pouch adapted for activation prior to insertion into said container;

means for generating additional bag expansion as product is dispensed from said pouch through the container outlet; and

means for opening said pouch to facilitate communication of the flowable product container therein with said container outlet whereby the flowable product may be dispensed from a reusable container.

7. A refill pouch in accordance with claim 6 wherein said inflatable pouch is flexible to substantially conform to the shape of the inner portion of the reusable container upon expansion thereof.

8. A refill pouch in accordance with claim 6 wherein said pouch includes a removable tab for opening of said pouch.

9. A refill pouch as set forth in claim 6 which further includes a siphon tube therein.

11. A refill pouch as set forth in claim 6 wherein said product housed therein is a concentrate.

10. A refill pouch as set forth in claim 26 wherein said bag expanding means is a gas generating means.