Closure for collapsible contatiner

• US 20070007233A1
• Filed: 06/25/2004
• Published: 01/11/2007
• Est. Priority Date: 06/30/2003
• Status: Abandoned Application

• Current Assignee: Scott Brown
• Original Assignee: Scott Brown
• Inventors: Brown, Scott
• Application Number:
  US10/562,770
• Publication Number:
  US 20070007233A1
• Time in Patent Office: Days
• US Class Current: 215/342
• CPC Class Codes: B65D 1/0292 Foldable bottles
• CPC Class Codes: B65D 51/1644 the element being a valve B65D51/1661 takes precedence

Abstract

A closure (1) for flexible packaging (2, 3) with a floating valve (5) which is a situated within the cap (4). The cap (4) is provided with holes (14) to allow for escape of air. The valve (5) may incorporate a spring (15) to regulate flow of air upon collapse of container (2, 3).

Claims

1. A closure containing a cap with air bleed facility, a floatation valve adapted to be seated within the cap and may contain a spring which regulates the air flow upon elimination of headspace within the container.

2. A valve as claimed in claim 1 with a peripheral flange that may be semi spherical, cone, disk or spherical in shape which acts to seal off flow of contents when all air is evacuated from container.

3. A valve as claimed in claim 2 wherein it may incorporate a soft peripheral flange made of silicone or same that acts to provide a seal upon inner top of cap and upon container pouring spout.

4. A cap as claimed in claim 1 with internal thread to match external external thread of container.

5. A cap as claimed in claim 1 with internal walls that may provide a pluralities of flutes leading to air bleed facility.

6. A cap as claimed in claim 1 with an indicia on the cap and container that can be provided to indicate venting and sealing positions.

7. A cap as claimed in claim 1 that incorporates a seat for positioning of spring.

8. A valve as claimed in claim 2 that incorporates a seat for positioning of spring.

10. A spring as claimed in claim 1 that may be of stainless steel or food grade plastic.

9. An interference detail within the cap and outside of container to ensure sealing of container.