Metal bottle seal

Patent metadata

Field	Value
Publication number	US-9694947-B2
Application number	US-201615150747-A
Country	US
Kind code	B2
Filing date	May 10, 2016
Priority date	Aug 22, 2006
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

Disclosed is a metal bottle seal that is disposed on the curl of the metal bottle. The bottle seal may be held in place by crimping of the curl. In addition, adhesive may be used to hold the bottle seal on the curl. Adhesives can be used that fill discontinuities that may exist in the curl as a result of substantial drawing and ironing of the metal. Further, the metal bottle seal can be made of a material or laminated with a material that is soft enough to fill the discontinuities. The seal can be preformed as a continuous annulus for easy application to the top of the metal bottle. The metal bottle seal can also be used in conjunction with a cap seal to ensure an adequate and reliable seal.

First claim

What is claimed is:

1. A sealing system comprising:
a cap comprising:
a central cylindrical portion having external threads formed thereon,
a flange connected to said central cylindrical portion, and
a cap sealing surface on said flange;
a plastic annular insert having internal threads that match said external threads formed on said cylindrical portion of said cap;
a metal bottle comprising:
a bottle neck, and
a curl formed in said bottle neck that curves inwardly towards a center portion of said bottle neck to form a bottle sealing surface that forms a seal with said cap sealing surface, and wraps around a top portion of said plastic annular insert to hold said plastic annular insert in said bottle neck; and

an annular-shaped bottle seal having an inner layer and an outer layer laminated to said inner layer, said outer layer being made of a first plastic material in order to prevent metallic taste from being transmitted from said metal bottle to a user, said inner layer engaging said curl and being made of a second plastic material softer than the first plastic material in order to fill discontinuities in said curl.

2. The sealing system of claim 1 further comprising:
a bottle ring formed in said bottle neck that prevents said plastic annular insert from being pushed into said metal bottle; and
an adhesive disposed between an outer surface of said plastic annular insert and an inner surface of said bottle neck that holds said plastic annular insert in said bottle neck.

3. The sealing system of claim 1 wherein at least a portion of said cap is formed from a cap sealing material and said cap sealing surface comprises a smooth surface formed in said cap sealing material.

4. The sealing system of claim 1 further comprising:
a bottle ring formed in said bottle neck that prevents said plastic annular insert from being pushed into said metal bottle; and
a taper formed in said bottle neck that prevents said plastic annular insert from being pulled out from said metal bottle.

Assignees

• Stolle Machinery Co Llc

Inventors

• Olson Christopher J
• Gillest Edmund

Classifications

• B65D1/0246

  Closure retaining means, e.g. beads, screw-threads · CPC title

• B65D2251/0093

  Membrane · CPC title

• B65D51/20

  Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing {(B65D51/185 takes precedence; co-operating with an auxiliary container for additional articles or materials B65D51/28)} · CPC title

• B65D41/125 Primary

  with integral internal sealing means · CPC title

• B65D41/12

  made of relatively stiff metallic materials, e.g. crown caps · CPC title