Aerosol container

Patent metadata

Field	Value
Publication number	US-9327899-B2
Application number	US-201314380246-A
Country	US
Kind code	B2
Filing date	Feb 25, 2013
Priority date	Feb 24, 2012
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

An aerosol container ( 1 ) comprising a body ( 50 ) and cone ( 60 ) and encasing a composite spout ( 30 ) and bag ( 40 ) combination. The composite spout ( 30 ) has a metal tubular section ( 10 ), adapted to accommodate a valve arrangement ( 70, 75 ) and a polymer fishtail section ( 20 ), adapted to form a leak-proof seal with the bag ( 40 ). A product is filled into the bag ( 40 ) and propellant is filled into the sealed chamber defined between the outside of the bag ( 40 ) and the internal surface of the body ( 50 )/cone ( 60 ).

First claim

The invention claimed is:

1. A composite spout and bag combination, wherein the composite spout has a polymer coated metal tubular section, adapted to accommodate a valve arrangement, and a plastic fishtail section, adapted to form a leak-proof seal with the bag,
the bag being made from a multilayer film, having a metal foil layer, to provide a barrier, interspersed between plastic layers, to protect the foil and to form a secure bond with the fishtail section, and the fishtail section is partially disposed within the tubular section.

2. A composite spout and bag combination according to claim 1 , wherein the fishtail section is insert moulded onto the tubular section such that the plastic material reinforces a hole in the tubular section and extends radially into the tubular section to define a nut, which mechanically locks the tubular section and the fishtail section together.

3. A composite spout and bag combination according to claim 1 , wherein the fishtail section is made from polypropylene.

4. An aerosol container comprising:
an outer casing comprising a body and cone; and
a composite spout and bag combination, wherein the composite spout has a polymer coated metal tubular section, adapted to accommodate a valve arrangement and a plastic fishtail section, adapted to form a leak-proof seal with the bag, the bag being made from a multilayer film, having a metal foil layer, to provide a barrier, interspersed between plastic layers, to protect the foil and to form a secure bond with the fishtail section, and the fishtail section is insert moulded onto the tubular section.

5. An aerosol container according to claim 4 , wherein the cone is formed integrally with the body to provide a unitary outer casing.

6. An aerosol container according to claim 4 , wherein the bag is filled with a product and a volume defined between the outside of the bag and the inside of the body and cone is pressurised with propellant and sealed by a valve cup and valve.

7. An aerosol container 1 according to claim 5 , wherein the valve includes a dip tube.

8. A method of assembling an aerosol container comprising the steps of:
in an outer casing comprising a body and cone, rolling up longitudinally and inserting a composite spout and bag assembly into the outer casing,
wherein the composite spout has a polymer coated metal tubular section, adapted to accommodate a valve arrangement and a plastic fishtail section, adapted to form a leak-proof seal with the bag, the bag being made from a multilayer film, having a metal foil layer, to provide a barrier interspersed between plastic layers to protect the foil and to form a secure bond with the fishtail section, and the fishtail section is insert moulded onto the tubular section.

9. A composite spout and bag combination for an aerosol container, the combination comprising:
a composite spout, the composite spout comprising:
a polymer coated metal tubular section that is adapted to accommodate a valve arrangement of the aerosol container; and
a plastic fishtail section partially disposed within the polymer coated metal tubular section; and

a bag comprising a multilayer film, the film having a metal foil layer interspersed between plastic layers.

10. A composite spout and bag combination according to claim 9 , wherein the metal tubular section has a base that defines a recess, the plastic fishtail section includes a nut, and the plastic fishtail section is partially disposed within the polymer coated tubular section and secured to the polymer coated tubular section by the nut.

11. A composite spout and bag combination according to claim 10 , wherein the nut is integral with the plastic fishtail section.

12. A composite spout and bag combination according to claim 10 , wherein the fishtail section is made from polypropylene.

13. A composite spout and bag combination according to claim 10 , wherein the fishtail section is insert moulded onto the tubular section.

Assignees

• Crown Packaging Technology Inc

Inventors

• Greenfield Mark
• Vincent Keith Alan
• King Michael Anthony
• Bradley Lee Robert

Classifications

• B65D83/62 Primary

  by membranes, bags or the like · CPC title

• B65D83/38

  Details of the container body (pressure relief devices B65D83/70) · CPC title

• B29C45/14778

  the article consisting of a material with particular properties, e.g. porous, brittle · CPC title

• B29C45/0053

  combined with a final operation, e.g. shaping (injection-compression moulding B29C45/561) · CPC title

• B29C45/14311

  using means for bonding the coating to the articles (B29C45/14795 takes precedence) · CPC title